from feeding grounds, to the phenomenal nesting rookery
from a long way afar
to the beach right here, in Rushikulya*
looking for the perfect spot
not too cold, not too hot
a tropical beach to pitch in
not one to rest or give in
she strove with all her might
a nest had to be dug alright
ploughing the earth with flippers at the back
and absolutely no room for slack
One foot and some more she dug
a cone of a hollow deep and snug
big enough to lay 100 plus eggs, may be a li’l less
all set for a nesting fest
they call it the ‘arribada’ you bet!
its Spanish for ‘arriving by sea’, could you guess
she nearly went into a trance henceforth
spawn set, a thumping dance was in accord
next was all about tossing some mud around
to ward off nosey predators that abound
safe and secure the eggs had to be
for 45 or 50 days in the least
leaving us in our cosy hideaway
she headed back to the waters right away
one, two, three, four, almost eight weeks went by
we grew inside – my siblings and I
and then it was time
breaking shells open, out we climb
biding, waiting, and on cue from cooler night-time
we jostle to the moon-lit waves, led by their sparkle and shine
once afoot, there isn’t a moment to waste
many precious lives get saved in that haste
for dangers lurk in the dash toward the sea
crabs, dogs, jackals could creep upon us gingerly
many of us made it through the blast
into the waters – safety at last
ocean currents would now be the compass
as we dip, spin and swim in the vastness
onward and beyond, we plunge
miles and miles onto the ocean we’re flung
‘lost years’ and many lost mates later
we return to the waters long farther…
* Rushikulya river mouth, along the coast of Odisha in India, is a mass nesting site for olive ridley turtles – one of the largest such sites in the world. Categorized ‘vulnerable’ on the IUCN Red list, olive ridleys feed in the Gulf of Mannar, along the Sri Lankan coast, and elsewhere in the Bay of Bengal, and make annual migrations to the Odisha coast to nest.
We have often argued against locking Nature away from people. But we must recant. Nature needs to be locked up, for her own good. Nature is dangerous, and we need to protect her from herself.
Let us explain. Judging by our previous writing, you will have guessed that we are somewhat sceptical about the Half-Earth movement, which seeks to set aside half of the planet for Nature. Our doubts arise because it is not clear how these areas will be set aside or what levels of protection they will afford. It is not clear who will need to move, and who should restrict their livelihoods. It is not clear whose version and vision for Nature is getting the designated half. It is not at all clear that this will deal with the root of the problem that has driven the degradation and despoliation of Nature – namely economies governed by greed.
And one could argue that actually these are merely quibbles. We have a more fundamental point of agreement with Half-Earthers, namely a desire for less despoliation of Nature. Our disagreement is largely about means. In fact, we would all welcome many of the same general ends.
But that very agreement may, in fact, have been our most serious mistake. We are assuming that Nature can be trusted. That if you leave things to Nature, if you allow the wild to flourish, then that will be a good thing. And now it appears that our faith and optimism was hopelessly naïve.
Some philosophers argue that anyone who delights in seeing wild animals flourishing must be appalled by the death, destruction and sheer misery that is deliberately built into so many creatures’ reproduction strategies. Simply put, many species (so called ‘r-strategists’) deliberately have gazillions of children fully expecting most to die after short miserable lives. For example, Oscar Horta has estimated that the breeding population of cod in the Gulf of Maine creates over 6300 years of suffering in doomed codlings every breeding cycle.
For some, this suffering is unacceptable. We need to find ways to intervene, to separate predators from prey and to stop prey species from being so incredibly fecund. This will be quite far-reaching, because it requires setting up a new Nature Zoo, in which the wild is carefully segregated away from itself. Specifically, it would entail separating predators from prey, providing dietary alternatives for predators based on non-sentient species like plants, and mass sterilisation or gene therapy for r-strategists so that they produce far fewer young. And gene therapy could also be used to modify plants so that they are fit for consumption by carnivores.
Philosophers insist that we take this vision seriously. As Horta writes: “it would be strange not to think about ways in which we could act to improve the situation of animals in the wild once we are aware of the immense amount of suffering present in it.” We must admit that it is a stimulating vision which prompts a large number of reactions but we will restrict ourselves to two observations at this point.
First, it should be plainly obvious that allowing Nature to unleash herself on herself in this wanton fashion all over the planet is grossly irresponsible. The suffering and death of the wild are intolerable. Nature needs half? Poppycock! Until Atlantic cod, ridley turtles and others learn to control their frankly disgusting breeding impulse, they do not deserve anything. Evicting all life forms from the Gulfs of Maine to Mexico until they can treat each other kindly is a moral priority. Nature cannot be trusted to look after herself humanely.
It’s worth pointing out that Nature has previous convictions in this respect. After all, r-strategies evolved from somewhere. And it is hardly necessary to remind readers that we are now entering, with the Anthropocene, the sixth mass extinction. This one’s on us, but the previous five were all Nature’s fault. At the end of the Permian (a bad hair era), she knocked off over 90 percent of species, and at the K-T boundary, all dinosaurs barring birds. Nature seems to revel in death and extinction.
It is purely logical therefore to insist that Nature only be given space when it has been properly segregated into different domains that permit more dignified and wholesome inter-species interaction which exclude predation, parasitism, infestation, competition, aggression, minor nibbling and any other form of harassment.
Second, we must also recognise its inevitability. This is coming down the pipe, folks. Just look at the speed made in scientific progress towards mapping and editing genes. It’s exponential. Indeed, given the accelerating progress being made in gene mapping and modification, we predict that the arrival of the means to establish new humane nature zoos will be achieved by Monday 4th of July 2024.
Nature, do not fear, we will nurture you back to life!
Have you ever wondered if there still are creatures in the world that we haven’t found yet? Perhaps in places that have yet to be discovered? Hidden in the jungles of Southeast Asia is a cat that most people in the world have never seen. Even though it was first reported to the western world 200 years ago by a naturalist named Edward Griffith, this cat has stayed as mysterious and hidden as its name suggests. The clouded leopard has the scientific name Neofelis nebulosa, which actually means ‘new cat, cloud’! It is medium-sized, lives in trees, and is named for the large cloud-shaped patterns on its fur. This creature is less than three feet long and weighs between 25 and 50 pounds, which is quite small compared to larger cats like South American jaguars (200 pounds), African lions (400 pounds), and Asian tigers (up to 600 pounds). For this reason, the clouded leopard is known as “the smallest big cat”. Like its cousin, the snow leopard, the clouded leopard does not roar, and has many other unusual and unique characteristics.
Even though people have known about these beautiful creatures for a long time, there is still a lot of mystery surrounding them. In 2006, scientists discovered that the clouded leopard species we knew about were actually two different species – the clouded leopard on the mainland continent of Asia called the mainland clouded leopard, and another species isolated on two islands, Borneo and Sumatra in the country of Indonesia. They named this the Sunda clouded leopard. They may look the same at a glance, but under close inspection, there are many differences between these two cats, from the size and shape of their teeth to small pattern differences in their fur. The surest way to tell them apart came from DNA testing. By comparing the DNA of clouded leopards from mainland Asia and the DNA of those from the island of Borneo, a team of researchers found that these two species of clouded leopard are as different as lions and jaguars.
Many traits make the clouded leopard special in the larger world of cats as well. They have a unique pattern to their fur, unlike any other of its kind. Their ankles can rotate backward like a squirrel’s, allowing them to climb down tree trunks head-first! They also have incredibly long teeth. When compared to the overall size of their bodies or the tooth-to-body ratio, both species of clouded leopards have the largest canines of any living cat. The newest species — the Sunda clouded leopard — has canines that are longer and thinner than even their cousins on the mainland. However, if you look at one, you won’t see their front teeth hanging out of their mouths like the sabre-toothed cats we see in movies. Their teeth are just short enough to stay tucked under their lips, hidden most of the time.
In pop culture, the words sabre-toothed cat might make one think of Diego from the move Ice Age. While Diego and his kind did exist, their name comes from (you guessed it) their sabre-shaped canines. A saber is a sword that is long and slightly curved, like those of pirates we see in regular pop culture. Like most swords, the blade is flat, which is important when we are comparing them to teeth. Cats today have coneshaped teeth, which allow them to attack and hold onto their struggling prey for elongated long. Flat teeth are no good here because they are weaker in one direction. If you push against the flat side of a blade, it is likelier to break than if you push against the thick edge. Think of trying to break a wooden board in karate. If you hit the flat side it might crack, but if you tried to break the edge, it would only hurt you! Sabretoothed cats’ sabre teeth were flatter and less cone shaped. If a sabre-toothed cat were to attack an animal and that animal struggled, there was a good chance his teeth might actually crack like the wooden board.
Sabre-toothed cats of old
There are many extinct species that represent what we might think of when we hear of “sabre-toothed cats”. Although there were others, two of these groups were especially dominant at different times. As early as 35 million years ago, an early group called Nimravids (Nim-ra-vids) roamed the plains of North America, Europe and Asia. Although they were not related to true sabrecats at all, these creatures were shaped like later sabre-toothed cats, bulky, with big forelimbs and thick necks. A long time later, only 2.5 million years ago, a group of true sabrecats, called Smilodons (Smile-o-dons) arose. They too had thick limbs and strong necks, and hunted all over — not just the plains, but in the forests and mountains as well. Along with them were other large predators hunting the ancient versions of deer and buffalo. In fact, there were so many different animals competing for food that scientists believe they were forced to focus on only one or two kinds of prey. This kind of focus is called “specialization”.
When an animal specializes, it often leads to exaggerated features like brighter colors, larger eyes, or longer fangs. In the case of sabrecats, specializing made their canine teeth longer and thinner over time. With such amazing canines, attacking prey could put their teeth in jeopardy. Scientists aren’t sure about how they actually hunted yet, but there are some excellent ideas. One common theory suggests that they would surprise their meal and attack them with a single kill bite, holding them still with their strong forelimbs rather than their teeth. After they killed their prey, they would have faced another problem. In order to be able to fit anything in their mouths, their jaws would also need to open extremely wide to clear those long teeth. And that is what researchers found — that Smilodons and other sabre-toothed cats could open their mouths extremely wide, a measurement in science called the “gape angle”. It was this large gape angle that clued one researcher to the similarities between these incredible extinct cats, and the modern-day clouded leopard.
Comparison to the modern clouded leopard
Per Christiansen, a Norwegian paleontologist who studies prehistoric cats, noticed that clouded leopards have the amazing ability to open their mouths wider than any other living cat — to a staggering 100 degrees or more! In comparison, a human has a gape angle that averages 75 degrees. This got him thinking about their teeth, and the reason for those wide mouths. He found that along with their incredible gape angle, their canine teeth were somewhat sabre-shaped, just like the cats he studied. First, he measured the width and length of the canines from many different clouded leopards, as well as lions, leopards, tigers, and other living cats. Then he compared them to the canines of many different extinct sabre-toothed cats. He found that the canines of the clouded leopard are more like the massive canines of those prehistoric cats than they are to any other living cats today! And the similarities don’t stop there.
Clouded leopards live in the dense jungles of Southeast Asia, where they spend most of their time high in the trees. There, they do everything from eating to sleeping. They even hunt monkeys high in the trees! Being in the trees so much, they have incredibly strong front legs, which they use to climb up, down, sideways, and even on the underside of tree branches! Remember how the Smilodons and the Nimravids have strong front legs to capture prey and hold them down? Clouded leopards do the same thing. It makes sense, too. Clouded leopards feed on many different types of animals, from porcupines and monkeys to pigs and deer on the forest floor. Some of their prey are even bigger than the clouded leopards are! Since the leopard’s teeth are long and narrow, attacking such large prey will increase the risk of breaking those long teeth. Their powerful front legs allow them to hold down prey while they use a strong killing bite. Scientists have also discovered that just as strong front legs make the clouded leopard good at both climbing trees and catching prey, many of the ancient sabrecats were good at climbing trees too.
Clouded leopards, and especially the Sunda clouded leopards in Borneo, are still much of a mystery because of their remote locations and hidden, solitary nature. There is still much to learn about the way they hunt and how they use their long fangs. However, we do know that the Sunda clouded leopard is the largest predator in the jungles it calls home. This means that there is less competition for prey, and less need for specialization. But if another animal comes along that hunts the same prey as the Sunda clouded leopard, there is a chance that their teeth would need to grow even longer and thinner for more specialized hunting, and they would end up looking just like the extinct sabrecats’ teeth!
Right now, Sunda clouded leopards hold the record for having the longest and most sabre-like teeth for their body size in the cat world today, crowning them the new sabre-toothed cats of the animal kingdom! The massive canine teeth, along with other incredible and beautiful features, make this animal one of the most interesting creatures there is still so much to learn about. How amazing is it that there are still extant sabre-toothed cats living among us today?
Millions of 10-cm-long yellow insects emerge from the river and scramble onto the water surface to mate. Then, these little beauties fly ‘en masse’ upriver for several kilometres to lay eggs, all in a span of 2-3 hours on a calm early-summer evening. To people fortunate to catch it, this will always be a wondrous, peculiar phenomenon. This is the spectacular swarming of the long-tailed mayfly (Palingenia longicauda), a species in the insect order Ephemeroptera.
In the past, the long-tailed mayfly was common in middle sections of lowland rivers all over Europe. The species is now confined to the catchment (an area of water collection and drainage) of the river Tisza in eastern Hungary, the Rába river in western Hungary, the Prut river in Moldova, and some other rivers in Ukraine.
Somewhere, this confinement is a tragedy. What happened to this spectacular mayfly, whose swarming was first documented as early as 1634 in north-west Europe? Recent studies show that the species has lost more than 95 percent of its geographical range in a few centuries. It went extinct in France in 1922, Germany in 1953, and disappeared from Danube, the largest river in central Europe, in 1974.
Causes of loss
The most likely reasons for this loss are river regulation, riverbank modifications such as riprap stone structures, and water pollution. The larvae of this species live in burrows that are dug in eroding clay riverbanks underwater. They undergo 20 moults (the process of shedding skin, feather etc.) during their three-year development period. They come above the water surface to become imagoes — sexually mature adult insects post metamorphosis — in a final moult, reproduce and die, all within a few hours.
Eroding clay riverbanks typically form on the outer arches of river bends, and the progression of erosion often threatens densely populated human settlements or agricultural areas in Europe. As a result, structures to prevent erosion were built by water management agencies. But this led to the disappearance of the classic habitat of Palingenia mayflies in many river systems. The larvae feed by filtering organic matter and algae from the water moving through their burrow and serve as an important food base for a variety of fish. Water pollution further exacerbates the effect of habitat loss, and the decline of this larvae also threatens higher trophic levels along the food web.
New threats
The mayflies, however, had found their fortune in traditionally “unfortunate” countries in Eastern Europe, where rivers were more or less left alone. However, new developments threaten even the remaining range of the species. The unpredictability of water supply and long periods of drought increasing with frequency under climate change are resulting in an absence of the spring and early-summer floods that once rejuvenated the eroding clay riverbanks. As a result, sediment was deposited in the outer arches of riverbanks. This prevented the larvae from digging their burrows in the riverbank.
Another recent threat is that swarming often occurs now over several days, rather than on one “big day”. When there are fewer individuals swarming over several days, predators can catch more of them proportionally than they would during one big, swooping swarming. If predators are able to take, say, 50,000 individual mayflies per day, a swarming of 1 million mayflies distributed over 10 days will leave half a million mayflies to reproduce. But if the swarming occurs on one day, this number will be 950,000. This is a huge difference in the number of individual mayflies reproducing in the population. These processes may explain recent observations that the number of individual mayfly swarming has declined in many sections of the Tisza.
A chance for the mayflies
While the mayfly swarming has long been a celebrated local event along the rivers where it is still found, large-scale conservation attention has evaded this species. For example, the species is not listed in the Habitats Directive, the cornerstone of non-bird species conservation in the European Union. However, the recent listing of the mayflies and their spectacular swarming as a “hungaricum” (worthy of distinction unique to the country of Hungary), may change this. We expect increased attention to the species and its declining conservation status.
There is reason to hope that water management interventions that damage classic habitats will not be implemented. In areas where this is possible, restoration of the mayflies’ habitats by removing riprap and other stone structures will also become necessary. However, larger-scale thinking and coordination are necessary to ensure the long-term persistence of the species. We need to preserve or restore natural and semi-natural habitats, mainly forests, in the upstream areas of the catchment to reduce the unpredictability in water discharge. All this requires trans-boundary cooperation between the countries sharing the Tisza catchment area. Such cooperation has proven successful in alleviating the effects of river pollution recently. We need similar, consistent efforts of cooperation to address the threats to the mayfly – the hidden beauty of many meandering rivers.
Chokalingam was a very special character. Interestingly, his facial features somewhat resembled Australian Aborigine features. Like many Indian tribes, the Irula have become quite diluted as a particular racial type and in many, you have to look hard to see evidence of their Indian aboriginal ancestry. “Chocky” was one of the Irula instrumental in setting up the Irula Snake-Catchers’ Industrial Cooperative Society (ISCICS). Based on the Irulas’ superb knowledge of snakes, the Society would provide a livelihood for its members. But first, we needed to get them together. Chocky was one of my go-betweens. He also attended the early meetings with the Tamil Nadu Government’s Industry and Forest Departments. Chocky’s younger son, Kali, is the same age as my younger son, Samir, and the sometimes deadly mischief they got up to is a story for another time.
In those days, I was out with the Irula three or four days a week, learning what I could about their techniques in finding and catching rodents, snakes and other creatures of the farmlands and scrub jungle. When the Irula are walking along, they notice things that completely elude even weather worn and trained researchers: the smelly fresh scat of a monitor lizard, the smooth track of a snake on the edge of a rat hole (going in, or coming out?), a freshly shed skin hidden under the grass (a species we want?), fresh tracks, wisps of hair and live lice at the mouth of a rat hole, and of course, so much more in the way of edible and medicinal plants.
One day Chocky showed me a freshly repaired circular patch on a large termite mound. “Udumbu kudu” he said – a monitor lizard had dug a nest hole in the side of a termite mound, gone in, laid her eggs and departed and now, the termites had sealed up the hole thus securing the eggs from predation. Chocky explained that the monitors especially like to use the mound of the ‘black termites’ for nesting because these soldier termites are so aggressive that predators know not to mess around. Sure enough we found 10 long, leathery eggs which we collected and incubated. The eggs hatched a long 5 months later and we released the brilliantly marked young.
Walking along the densely vegetated bund of a small tank, Chocky suddenly stopped and pointed to something in a neem tree. “Pacha wona”, said Chocky. “A chameleon.” I expected to take a long time to find this wizard of camouflage, but there it was, in brilliant purple and yellow. It did not blend in with the surroundings at all! We both felt that there must have been another chameleon somewhere close by since this was the typical colour of a chameleon who had been fighting with a rival male. I’m pretty colour blind (reds and greens), so I never trust colours. But my eyes and brain seem to have developed a good ‘shape discerning ability’. Sometimes, when there’s a group of people with us on a reptile hunt and a chameleon is located, we’d tell everyone to turn around for a few minutes, and release the chameleon in a small tree. They would then have to find it again. The reptile’s ability to ‘disappear’ makes some of our guests take me seriously when I say, “It has turned into a big leaf on the tree”.
Some years ago, the ISCICS received an order for five grams of scorpion venom for a pilot project to produce scorpion anti venom. Apparently, the death rate amongst small children from scorpion sting is very high in some parts of India – the main culprit being the oddly-named Hottentoti tamulus, the common red scorpion known to all of us. Well, it was going to take about a 1000 scorpions to produce each gram of venom. How the hell were we going to find them? Chokalingam said, “No problem, if we put out a reward of Rs.5 per scorpion, the Irula will get 5000 within two months”. While some scorpions, like the large black ones, are tunnel diggers, the red scorpion seems to prefer hiding under rocks, plant debris and unfortunately, between the tiles on people’s roofs. Soon, the scorpions started coming into the ISCICS quarters by the bagful. We worked out a simple system of holding the wriggly little scorpions with a pair of forceps, tail-tip over the side of a petri dish. Then, by delivering a mild electric shock to the scorpion’s tail, a drop or two of whitish venom emerged from the sharp, curved tip of the stinger. The process was agonizingly slow but Chockalingam’s concentration and extreme patience formed just the right combination to make this venom extraction work really well. Within three months of receiving the scorpion venom order, the Irula had the five grams to send to the anti venom lab where it hopefully helped save children’s lives.
Chokalingam was an Irula medicine man as well and I once watched him treat a serious saw-scaled viper bite. An Irula girl had been bitten on the finger by a large one and her hand was badly swollen. I asked if we should take her to a hospital, but Chokalingam was adamant that he knew how to treat her. Wrapping a cord around her forearm, he made tiny slices in the webbing between her fingers with a bit of broken glass. By increasing the pressure of the cord around her arm, drops of blood and clear serum exuded from these little cuts. After that, he wrapped her entire arm in a cloth filled with a poultice of black turmeric leaves, which was to stay on for three days. After the poultice was removed, the swelling had all but disappeared and there was no doubt that the wound at the site of the bite was healing well. The wealth of Irula tribal medicine got a considerable fillip when the Irula Tribal Women’s Welfare Society (ITWWS) was started at Thandarai at the instance of Zai Whitaker, and we still have plenty to learn from these amazing people.
A bonus from knowing the land, its plants and creatures were the edible titbits that came our way while walking the countryside with tribesmen like Chokalingam. The yam the Irulas call Velli-kodi kizhangu is, they say, what they used to survive on before rice became the staple. Finding a vine with typical heart-shaped leaves, Chocky would carefully dig until the fat root was exposed. He would cut the main root off and bury the top of the root to which the vine was attached. “The root will grow again,” said Chocky. All I could think of was, “Am I looking at one of those first instances of agriculture? Is this perhaps how agriculture began?” We collected berries like the syrupy sweet gunja-pazham, savoured the sharp tartness of small black thorny berries called sura-pazham, the carrot stick refreshment of gnawing on a bit of ‘sappathi kalli’ (a type of spineless cactus flower) and it was all good. But these pale in comparison to the ‘honey experience’.
Often, on a long tiring walk, Chokalingam would keep his eyes tuned to finding some ‘kutchi-then’ (stick honey). These particular bees make their small honey comb on a straight stick conveniently at eye level, not way up in a tree nor in a hole. They sting like most other bees, but by gently blowing on the hive the bees are persuaded to fly away. Chokalingam cut both ends of the stick with his aruval (a curved machete) and brought out a turkey drumstick-sized honeycomb…ooof! Under the honey-packed wax cells of the comb, there are often bee larvae, one in each cell and especially prized by Irula children. If we were hot, sweaty, and hungry after half a day of walking, biting into that honeycomb and letting the honey drip down from your lips all the way over your fingers was heaven. I was tempted to slurp like a child. “No, don’t do that”, warned Chokalingam. “If you slurp the honey like that, you can choke.”. That’s what happened to me one day and it was fixed by a good slap on the back and a sip of water.
I was and am still amazed at the Irulas’ ability to find and capture rodents. For a tribe that made its name in conservation for their scientific love affair with snakes, their knowledge of every other species that they interacted with always astounded me. I was sure they could do a better and safer job of rodent control than the pesticide people that most of us are keen to constantly hire. When Chokalingam and I were invited to the Central Food Technology Research Institute in Mysore, Karnataka, he displayed his skill and understanding of rodent behaviour and caught a batch of 28 lesser bandicoots plus several gerbils in just one afternoon of digging up burrows. After a few more field trials, we received a grant from the Department of Science and Technology for a serious rat project. During the year-long rat hunt, the Irula caught a quarter of a million rats and recovered close to five tonnes of stored grain from rat burrows. We dug out entire rat burrow systems, mapped each one of them and learned a lot about the habits of the four main species affecting crops in our area of Tamil Nadu. The next phase was to set up a bio-control company owned and operated by Irulas, but it never happened. I thought that we had proved the effectiveness of hands-on rodent control without having to use dangerous pesticides, but I guess there is big money in the pesticides industry and our enthusiasm just died without support for the idea of applying the Irulas’ tribal technology to a problem that may account for the loss of a quarter of all the grain we produce in India. Is there anybody out there interested in our idea of promoting the Irula Pest Busters?
Reading conservation papers these days is like exploring a new galaxy. We are not just discovering new worlds, we are being forced completely to re-imagine what life constitutes, and what self and identity actually mean.
And nowhere is this truer than with plants. Lively ontologies rumbunctiously jostle the fertile imaginaries of more-than-plant personhood. They playfully imbricate otherness into rhyzomatic structures, joining cosmologies within and through connection. Variegated subjectivities intersperse across and within species boundaries, defying traditional taxonomies. These are networks, if you will, that are not just animate, but plantimate.
These interests have a distinguished pedigree. Jagdish Chandra Bose, a doyen of early 20th century science, strapped vegetables to machines to measure their electrical impulses, demonstrating that carrots winced as they were sliced and convulsing cabbages gasped in boiling water. He even showed that they grew better when they listened to good music. Bose argued that plants felt both pleasure and pain.
Nearly a century later, it turns out he was onto something. Plants do emit ultrasonic sounds when cut1. They respond to the buzzing of bees. They might well ask:
‘How are we not like you?, If you cut us, do we not scream2?, If you tickle us, do we not giggle?, If you introduce us to sport pitches, do we not scream with joy when trodden on by famous cricketers?’
Thus has emerged the campaign to confer personhood upon plants. Now this creates a conundrum for a certain section of society. Currently at the top of Mount Morality are those who believe that no animal shall serve any human purpose whatsoever. Every animal is a person, has a right, and must not be used or abused in any way.
But, if adoration of animals comes, can passion for plants be far behind? After all, if plants have personhood too, then we must go the whole hog (or potato). We must democratise trophic webs and introduce participatory decision making into food chains down to the last blade of grass.
But before we embrace our new brethren, before we dare to welcome them to our domain, we need to take a long hard look at ourselves in the mirror. There is an ugly shadow of patriarchal and imperial domination looming over this beautiful garden of exploration. Our quest is for others be like ourselves, be recognisable to us, controlled by us. We are the original, they the facsimile. But who are we to say that plants should share our exalted status?
The personhood of plants? Indeed not! Why would any right thinking plant want to become a person? Do plants want to share our history of despoilation? Are we trying to make the trees responsible for Amazonian deforestation? Petunias for the conquest of the Americas? Should grasses and flowers take the blame for feudalism, patriarchy and the horrors of modernity?
We must reverse this thinking. It is time we dignified the adventurous transgressive multi-species project by recognising the planthood of persons. At one time, it was choice abuse to accuse a person of having the IQ of a plant. Now it should appear to be an honour. And let us be generous with this distinction. Let us seek to confer planthood upon every person. Perhaps we all, if we try hard, deserve to be recognised as plants. We can share their rootedness, their longevity, their fecundity, their seasonality. Their ability to stay in one place all the time and wave around in the wind.
In fact, we would go further. It is only be recognising the innate vegetal state of particularly visible sections of human society that we can characterise its true condition. The corporate elite is plainly a strangling fig. Old cabbages, fungal growth and mould dominate our political leadership. You are fortunate indeed if you can look at your President without instantly reaching for the salad dressing.
But, my friends, these are more-than-metaphors. These are actual physical conditions. Real chlorophyll surges through our politicians’ veins. It is only when we see our leaders as needing a gentle watering twice a day, and a very thorough dose of manure, that we can properly appreciate our place in the cosmos.
1Khait, O. et al. (2020) Plants emit informative airborne sounds under stress bioRxiv 507590; doi: https://doi.org/10.1101/507590 2For incontrovertible evidence, see The Very Things (1984) The bushes scream while my daddy prunes. Reflex Records.
‘A river is a natural landscape element where due to gravity-driven flow, water connects the river’s highest point with the lowest one.’
Even though this definition sounds complicated, it is not difficult to imagine such a structure.
But the simplest and the shortest definition I have ever heard was that of a student’s response to an exam question, “What is a river?” One of my students replied, “A river is an area of flowing water whose length is greater than its width.” This short and simple response covered all the concepts necessary to imagine this landscape element. By considering this definition from the lens of how water systems actually work, we can see how this natural element presents an immense potential for use. All this is possible due to the energy produced by gravity-driven water flow, commonly known as ‘the water current’. The greater the current velocity, the higher the energy that may be harvested from the river.
But utilizing high-speed water currents is not always profitable. If it was, rushing mountain streams would have been massively used for this purpose. What matters is also the amount of water, or the ‘flow discharge’. Therefore, humans more often use the energy of larger rivers, rather than small mountain streams.
Rivers constantly generate energy. Hence, for millennia, humans have used rivers as inland waterways for carrying goods on vessels, and for transporting goods straight to the water surface, e.g. by timber floating. Lower water tables ensured that water is transferred via aqueducts to rich mineral grounds. Here, the extra amount of water ensures a good crop. In the past, such practices were implemented in areas adjacent to the Nile, the Tigris-Euphrates river system, and more recently, in the Volga basin in Russia. Finally, electric energy harvested from the water current has been used for centuries to power structures and devices that facilitate the production of various goods, such as watermills, fishponds, forges, and today, modern hydroelectric power stations.
Without doubt, the river current is one of the cleanest unconventional energy sources. Given current declarations and actions taken by key energy production units, and the fact that coal is the largest energy source worldwide, it seems unlikely that other unconventional energy sources might be used more widely than coal in global energy production.
Contrary to other unconventional energy sources, such as solar and wind power stations and biogas plants, water is a constant resource whose power depends on the aforementioned water flow. The more water there is in the riverbed, the greater the flow. To keep the water at a level sufficient enough to fulfill power requirements, humans apply water lifting methods and create dams in riverbeds. Falling from a certain height at high speed, water strikes the turbines and propels them. Then the energy produced by the generator flows into a power network.
The energy harvested from shifting river current speed is a crucial aspect of the economy.
The question is whether environmental losses caused by the harvesting of this pro-ecological energy can be offset by the profits. Given all this, shouldn’t this energy harvesting practice not stir controversy? It appears, it does. River ecologists believe that any changes to the riverbed, such as river damming, leads to a transformation in the habitats of plants and animals. This, in my opinion, is not even the most detrimental consequence of all. A river is a type of an ecological corridor where active and passive organisms swim or drift in search for food, and seasonal or reproductive habitats. Organisms like fish and tiny invertebrates cannot migrate when dams are constructed. One of the greatest and most well-known impacts of dams is on the population of migratory fish.
Migratory fish travel from seawater to freshwater, or the other way around, for spawning (release of sperm and eggs into the water for reproduction). Among these, we can distinguish anadromous and catadromous fish. Anadromous (from ana – ‘up’ and dromos – ‘running’ in Greek) fish, such as salmonids, migrate from the sea to shallow rivers and streams for spawning. Whereas catadromous (from cata – ‘down’ and dromos – ‘running’ in Greek) fish, such as the eel, migrate from freshwater to seawater for spawning. Anadromous fish face the most difficulties in their spawning migrations. Dams pose a grave danger to these fish, because if they cannot swim upstream to their spawning grounds, they will not be able to reproduce. The fish will not have the chance to propagate the species, and in nature, this leads to the weakening of one link of the food chain. This creates irreversible alterations in the entire ecosystem.
The situation of migratory fish, especially anadromous fish, wherever river dams have been constructed is alarming. In numerous countries, the population of these fish is critically endangered, and their existence depends solely on human activity. Poorly constructed dams that do not allow for fish migration to spawning grounds are the main cause of this situation. The survival of the species in its environment primarily depends on whether they reproduce in the natural habitat. Today, in numerous countries, the existence of anadromous fish depends on anthropic activity because humans literally obtain the fish by artificial spawning. The situation of the eel is far less dramatic because the species cannot be produced by artificial spawning.
Today, it is crucial for dams to be equipped with fishpasses that allow fish to successfully reach the upstream to spawn. A fishpass functions like a corridor that allows fish to bypass a river dam. Currently, regulations in several developed countries prevent the construction of impoundments for energy harvesting without a fishpass in riverbeds with migration. Fishpasses are not a new solution and have been incorporated into dam construction over the last few decades. Nevertheless, it should be noted that these passes do not guarantee that all fish migrating upstream reach their destination.
Some consider dam reservoirs to positively impact rivers. This is true on one hand, because river dams may increase water retention. However, this also means that a larger quantity of water evaporates than it reaches downstream. Sure, dam reservoirs allow for the river to be used for energy harvesting. But without a doubt, they negatively affect the river’s natural state. Not only do they present migration obstacles, but also increase the amount of suspension in the water. Sediments of drifting organic matter accumulate in dam reservoirs and annually increase in amount. Consequently, dead organic matter releases biogenic compounds that change the trophic state of water. If river damming was a beneficial process, then nature would have already created a mechanism allowing for creation of such conditions.
Water retention in dams and reservoirs is not even the slightest bit as effective as retention in soil or marshlands. In addition, the costs of constructing enormous structures for this purpose are remarkably high. Nevertheless, efficient water retention in soil is not possible today due to extensive drainage and construction on land. We can achieve water retention for navigability by restoring the natural state of the riverbeds (renaturalization). Straightening and deepening of channels, and regulation of catchment areas pose further problems for rivers.
Such maintenance practices are performed either to reduce flood risks or to improve transport conditions. But in reality, they achieve the opposite. Certain maintenance practices that change the natural state of rivers directly or indirectly impact previous renaturalization efforts. We could say that these contrary practices are performed in the same areas, which seems irrational. First, vast sums are invested into naturalization, and then considerable financial resources are invested in destroying it.
The potential of the rivers should be utilised. However, this should not be done everywhere and at all times, and especially not using the means that depend on human convenience. Nature is not our partner. It is us, humans, who are part of nature and not the other way around. Even though human brains are more developed than those of other animals, this does not give us the right to make decisions for them. And most certainly humans should not make decisions in the name of natural processes that take place in well-functioning ecosystems. It is as if someone tried to make healthy humans happy by imposing on them unnecessary experimental treatments. While humans can refuse such treatment, animals cannot. Of course, public consultations and talks with objectors of various investment projects are being held. And at some point, both parties of the dispute reach a consensus through compromise. But at the end of the day, even those parties are deciding for nature. But this is merely a compromise between both parties of the dispute, and not the investment supporters or the natural state of things. Nature never agrees to compromise with humans. At the very most, nature compromises with itself.
Even the slightest alterations to the natural environment are still alterations. If an alteration changes the river, nature, as the unconsulted party, will surely show its strength. Currently, we are witnessing the revenge of rivers. Draining and land melioration leads to low levels of water in rivers during the year, and sharp rises during periods of rainfall. Regulation, straightening, and laying concrete in numerous sections of rivers increase the speed of water currents. This leads to the destruction of existing structures, such as bridges at narrower parts of the river. Talk about digging your own grave.
But probably the worst thing is that supporters of such negative undertakings try their best to fool the world of their actions’ deadly consequences on nature.. According to numerous articles quoted by the supporters of river transformations, barges and dams increase biodiversity. Even if this is true, it is still a fraudulent manipulation. This is because typical riverine species are replaced with more ubiquist species, i.e. species that tolerate transformation. This is artificial manipulation.
Any experienced aquatic ecologist or aquatic environmental engineer can easily make changes that will lead to an increase in biodiversity. Even a vehicle tire left at the bottom of a stream has an impact on the number of animal species found in that section. It is plain and simple. The bigger the number of habitats and niches, the more the species present. A tire is an example of such a niche. Pondings, meanders, overdeepenings, and rapids caused by renaturalization are other examples of niches.
Naturally, climate change significantly affects rivers. Our role is to convince people that humans also have an impact on these changes. However, current climate and energy policies make speaking to laypersons challenging. Even if we succeed in convincing a large number of people, the majority remain skeptical about this issue.
We should ask the question whether humans are allowed to change nature entirely, and just like certain animal species, can they freely and consciously, or maybe even unintentionally, modify its current state. The beaver is a species that changes and adapts the environment to its needs. Humans are also a part of nature, and evolution gave us the abilities and skills to completely dominate other species and landscape elements. However, in the process of evolution, we also developed reasoning and questioning minds that have the ability to innovate for non-survival purposes. In the light of the current anthropic changes in the environment, the command to ‘subdue the Earth’ is no longer valid for at least a 100 years, or maybe even abused. It would seem that the Earth will not subdue any more.
It is necessary to conduct thorough studies to analyse environmental conditions, prior to the construction of hydroelectric power stations and the deepening of riverbeds to develop inland navigation. This would allow us to provide solutions that minimize human impact on the natural environment. It would seem that this clean, pro-ecological river energy would reduce greenhouse gas emissions, but without doubt, it would also decrease the environmental value of river ecosystems. It is crucial that scientists, administrative staff, business representatives, and ecologists agree that humans have a negative impact on rivers. Even though reaching a compromise poses a challenge, there is little doubt that we have no option but to achieve this. If making up for the damage we’ve caused is too cumbersome, well, cry me a river.
From the parking lot, there is nothing special about this isolated patch of greenery on the outskirts of Mysore, three kilometres from the quaint temple town of Srirangapatna. But a closer look reveals a quiet riparian wetland, comprising six islands and six islets on the banks of the mighty Kaveri River.
The Ranganathittu Bird Sanctuary, sprawling over 67 hectares of protected land, is the oldest bird sanctuary in Karnataka and one of India’s first sanctuaries. The islets of Ranganathittu formed when an embankment was built over the Kaveri river between the years 1645 and 1648. The wetland was declared a protected area (PA) in 1940 by the King of Mysore under the insistence of esteemed ornithologist Salim Ali, who noticed that high numbers of birds arrived at Ranganathittu to nest on the islets. In 2017, an eco-sensitive zone of 28.04 sq. km. was declared around the PA, disallowing commercial activities without government permission.
When we last visited Ranganathittu, in February 2018, the islets were densely packed with nesting birds, so thickly crowded together that we could not sight the trees upon which the birds had built their nests. Their mingled cries filled the air, deafening us and forcing us to shout to be heard above the cacophony. Mugger (marsh) crocodiles basked on the sunny rocks protruding from the water, their young clambering clumsily onto their scaly backs as tourist boats drew nearer for prime photo opportunities. The avian life was particularly thrilling; we spotted painted storks, Asian openbill storks, Eurasian spoonbills, Oriental darters (snake bird), spot-billed pelicans, black-crowned night herons, black-headed ibises, cormorants, brilliantly-coloured kingfishers, and even river terns, which nest in Ranganathittu during peak winter season.
The main island is also a birder’s paradise; we spotted the Tickell’s blue flycatcher, the Indian grey hornbill, the Asian paradise flycatcher, and a spot-breasted fantail that danced about like a little peacock spreading its wings and tail. In 2007, birders sighted a lesser frigate bird nesting in Ranganathittu, a rare event indeed! At home over the ocean, frigate birds are swept over India’s coasts during storm events or gusty monsoon winds. Over 40,000 birds spanning nearly 222 species were recorded at this sanctuary during the winter months (December through February) over the past decade, so our visit coincided neatly with that of migratory birds from different corners of the globe. Signage at the park informed us that certain species migrated from as far as Siberia and Latin America!
Ranganathittu is classified as a riparian zone in the Indomalaya ecozone, a result of its unique blend of land and water. Despite its location along the majestic Kaveri, the sanctuary has faced occasional drought events due to an erratic monsoon, leading to a dip in bird populations in the PA. During the monsoon, the PA receives heavy flooding as water is released from the Krishnaraja Sagar Dam, 8 km upstream on the Kaveri River. Portions of the islets are permanently damaged due to repeated flooding, yet remain valuable habitat for birds and wildlife. According to the eBird database, there are records of sighting threatened species such as the Indian spotted eagle, the tawny eagle and even the endangered Egyptian vulture here. The islets are home to multiple colonies of flying foxes, bonnet macaques, palm civets, grey mongoose, and even smooth-coated otters. The islets are home to diverse flora; Terminalia arjuna (the Arjun tree), Syzigium cumini (the Jamun tree), bamboo, and various broadleaf species make their home here. The banks are coated in riverine reed beds, which create habitats for fish, molluscs, and invertebrates, as well as for ground-nesting birds. The soil along the river is soft and loamy, ideal for aquatic insects. The sanctuary is also surrounded by vast stretches of irrigated agricultural fields where aquatic insects are available in plenty. An abundance of these insects attracts numerous birds to the sanctuary.
Given its location on the Bangalore-Mysore highway, only 18 km away from Mysore, this sanctuary attracts more than 100,000 visitors annually. Most tourism packages in Mysore include Ranganathittu, and it is the most-visited sanctuary (without charismatic species) in India. On average, the sanctuary used to receive about 700 tourists in a day, both domestic and foreign. It is also open year-round unless a crisis such as monsoonal flooding, and now, the pandemic, occurs. During our visit, we each paid Rs. 70 as entry fee (foreign nationals will have to pay five times this price) and Rs.100 for our DSLR cameras. There is an interpretation centre inside the sanctuary with informative games and trivia on the bird species found at the sanctuary, for children and adults alike.
While increasing tourism has a positive impact on the economy, it is yet to be studied whether there are resultory ecological impacts on the birds and river ecosystem. After a long hiatus due to the COVID-19 pandemic and the monsoon, the sanctuary opened to tourists on September 1, 2020. While tourist numbers are still low, people are increasingly venturing outdoors to escape the city and tourism will likely rise rapidly. This riparian sanctuary gives hope for the takeoff of bird watching-based tourism in other areas given that it is comparatively cheap and easily accessible to tourists. Additionally, efforts are ongoing to list this site as a RAMSAR wetland; the RAMSAR convention decrees that a wetland must meet one of nine criteria to be listed and Ranganathittu meets three. With its avifauna and protected riparian habitat, Ranganathittu remains a birder’s paradise and a gem in Karnataka’s crown of natural wonders. We hope to hear of its uplisting to RAMSAR in the near future.
The quiet wet evening was rattled by a disgusted cry from the kitchen. I had put down the saucepan into the sink only ten minutes ago. I was about to wash the pan, and put on another two cups of tea when I noticed the blasted critter stuck to the bottom! A slimy little slug!
A graphic image akin to those of the toilet cleaning agent advertisements conjured the idea of a slug-paved plumbing! Repulsed, I flicked out the slug with a cane and swirled the pan twice with soap, scrubbed it clean and rinsed again with boiling water and some lethal common salt. Down the drain I sloshed the hot salt-water, melting all the other ones I imagined to be stuck inside the pipe.
Moments later, a pang of pity struck me. My departed slug had metamorphosed in my mind – it grew glowing wings and a halo each over its weird antenna eyes. In an unkind busy world, it is the slow ones that get kicked and elbowed – or in this case, killed by salty hell. They do make a frequent case of annoyance, inconvenience and sometimes disgust – but these are ideas from the drain-pipes of my conditioning. In any case there is no sympathy for slowness- whether a slug or human being.
I hurried to wash the tea cups. Pity had reddened to guilt. I had recently watched a TED talk on civility in the workplace, which spoke of good allyship leading to good business. ‘Listen to the person when he or she is talking to you, put away your phone when someone addresses you, gift a smile when you cross them in the hallway…’ Daily passive and active aggression and verbal abuse creates slugs out of the worker. It hits their productivity in the stomach and choke-slams their esteem into oblivion. Eventually the ‘slug’ quits. Whoa, I was not going to castigate these poor slugs and snails. Whether an Ambigolimax or an Achinata whicheverata, I was going to advocate. Every snail must be worth his salt, pardon the pun.
While the slugs and snails might be out in the wet mud, in ditches and on walls or in the plumbing, their human advocate is spending her wee hours looking for their purpose in life. Now, there is the Ambigolimax, the ones without the shell, and then the Achatina fulica, the ones who have them and quite a few others like them. The one who suffered my cruelty (wince!) was a Tropical Leatherleaf. After quite some scrolling I found science and media were generally unkind to these legless blobs of flesh and shell as an invasive species. The truth ought to lie somewhere between the sensationalism and the myths, so my search continued.
Their superpowers included an unbeatable sexuality (they are hermaphrodites who can lay up to 1500 eggs at a time and get away with it) and a hearty appetite for anything from plastered walls (to build calcium homes of their own) to food crops painstakingly grown by Homo sapiens. In Kerala, their proliferation is indebted to a certain Homo sapien, a scientist by the name P.N. Radhakrishnan, who introduced the Achatina fulica, or more simply known as the Giant African snail. In 1955, he brought them to Palakkad in Kerala from Singapore as his lab subjects, till things got out of hand. A couple of them were slung into the municipality by some other Homo sapiens. Today they’ve settled into 12 of the 14 districts in Kerala.
But science was not the first to marginalize the snails for who they are. In fact, they were literally and profusely pushed to the margins of the illustrated medieval manuscripts of Europe, leaving even modern experts perplexed. They were pictured in combat with a knight in shining armor, astride a winged dragon or a white steed – supposedly some form of medieval humour where we are supposed to laugh at the knight for trying to fight something as silly and frail as a snail. In other versions, the snail appears more sinister and menacing, pushing its pronged eyes toward the knight. ‘Like a snail that melteth away into slime, they shall be taken away, like a dead-born child, they shall not see the sun’ is the warning of Psalm 58. Maybe the snail was a Biblical allegory for inevitable death and man’s futile attempt to fight it. But the shelled monsters were everywhere, not just the corners of the Bible. This leads to the third assumption that they depicted the Lombards, who were at the time despised as an unruly, monopolizing, sinful lot. In any case, snails made good for satire.
The burgeoning number of this slimy lot in our backyards is not because some witty chap threw them into every corner of our life. It is also one of those environmental imbalances that we propagate. Apparently, due to the excessive light pollution in recent years, there has been a decline of population in the firefly kingdom. Snail larvae are the usual night time snack for fireflies, and with them gone, all 1500 snail eggs are free to hatch and flourish into squirmy slimy progeny – all potential carriers of a deadly nematode capable of causing meningitis in human beings. Talk about karma. For me, this outweighs internet trivia of how Thai women find it beneficial to use snail mucus for cosmetic treatments.
My metamorphosed slug puppied its eyes, sensing an unsavoury verdict. No, that’s it! Out went the haloes and the firefly wings. If these critters could fly, my new found sympathy would be taken with a pinch of salt.
We are pretty sure that your first thought on hearing the word ‘parasite’ is unpleasant. But that’s no reason to dismiss parasites, and particularly not their usefulness. Sure, they are small and hideous and do bad things to other lifeforms. But like most creations of nature, parasites can be beneficial too.
Let’s take the example of chytrid algal parasites. To understand them, we need to understand how pelagic food webs work.
First, the open water of lakes and oceans is called the pelagic region, which contains highly diverse microscopic organisms living in suspension, called plankton. Planktic organisms able to photosynthesize are functionally similar to plants and are called phytoplankton. Phytoplankton produces as much as half of the oxygen on the planet. They are at the very base and foundation of the food web in lakes and oceans, while they themselves get eaten by microscopic consumers called zooplankton. The phytoplankton-zooplankton interface has a direct bearing on the entire pelagic food web. An efficient dietary energy transfer from phytoplankton to zooplankton is central for organisms at higher trophic levels such as fish.
The high diversity of so far poorly characterised pelagic microscopic organisms also includes aquatic fungi. Recent progress highlighted the importance of alternative trophic pathways in pelagic food webs with chytrid algal parasites as key elements. But what are chytrids, really?Chytrids are fungi, and most of them act as parasites infecting a wide variety of phytoplankton species. One peculiar thing about them is that they are rather host-specific. This means, one chytrid species infects one or a few phytoplankton species.
So chytrids infect phytoplankton, while zooplankton can feed on both phytoplankton and their chytrid algal parasites. Therefore, chytrids make the pelagic food web a bit more complex, and we should be very much pleased about that. Primarily, when zooplankton can only feed on a few phytoplankton species due to the massive dominance of few species caused by human impacts like anthropogenic eutrophication (that is, the release of large amounts of nutrients to the water due to agriculture or inefficient wastewater treatments).
Eutrophication and global warming enhance the mass occurrence of algae, also known as “algal blooms”, or “harmful algal blooms”. They are called harmful since some bloom-forming species can produce toxins. When the toxic algae accumulate on the surface, they form a layer. Some of them, like layers of cyanobacteria (prokaryotic algal group) or dinoflagellates (one eukaryotic algal group), can even kill a dog!
Another problem with bloom-forming algae is that they are often too large to become food for zooplankton, choking up energy transfer. This means when algae that are too large in size cannot be harnessed by zooplankton, the energy stays blocked and stored in the algal mass. This energy is lost after the algae dies.
But all’s not bad news. Chytrid parasites live attached to the algal host (called sporangium) and produce large numbers of small-sized free-swimming zoospores to disperse and reproduce. Zooplankton can feed on the chytrid zoospores; therefore, chytrids can convey dietary energy from inedible algal hosts to zooplankton. But chytrids can do even more! They can improve the low-quality cyanobacteria food to high-quality organic compounds and synthesize essential molecules de novo. One example is omega-3 fatty acids, which are critical for zooplankton growth, reproduction, and survival.
So, chytrid algal parasites are out there to help nature function. They support pelagic food webs by recycling algal biomass and making essential dietary molecules available for other consumers. They can constitute a fundamental resource in case of harmful algal blooms. Humans, hopefully, are now much more aware of the negative impacts of eutrophication and global warming on aquatic ecosystems than before. As for the chytrids, there might be much more to do, especially to realise and understand their quantitative importance in pelagic food webs.
While in the past we asked: “why chytrid algal parasites are there”, “what do they do?”, we are now after a new question: “are there enough chytrid algal parasites to support pelagic food webs?”.
It started like any other day. By 8 am, we were in a field in a community forest near Mandal, a sleepy little village at the base of a steep valley of the Garhwal Himalayas, India. The rays of the sun had only just begun kissing the hill tops. But my Central Himalayan Langur troops were deprived of their warmth.
To stay warm, the langurs my fellow researchers and I were studying, huddled together, sharing body heat on the forest floor. We made note of this kleptothermy – a behavioral adaptation to fight the chilling temperature — in our data sheets.
The Central Himalayan langur (Semnopithecus schistaceus) was a relatively unknown species even amid primate research. In India, langurs can be found in high Himalayan elevations (1,500-4,000 m) from Jammu & Kashmir to the peaks of Sikkim. A langur is primarily greyish in appearance with a whitish head and tail tip, with a relatively larger body size (an average of 70cm) than langurs found in other regions. In addition, female langurs are generally smaller than males. In this species, multiple males share dominion. Dominion, as we know, is usually a distinguishing variable of behavioural study in most ape and primate groups. The langur group we were following was a large one, with five adult males, 12 adult females, seven sub-adults, eight juveniles, and few infants. To observe such a large group this early into our field study was quite a privilege.
Our motive was to better understand the langurs’ behavioural ecology. This required following the troop throughout the day – from morning (when they were still resting and not active enough to study well) till the evening (when they were moving towards their resting/sleeping site for the night).
This particular morning, as the clock ticked forward and sunrays reached treetops, all our huddling langurs started moving towards the hilltop for a nice little sun bath. I don’t blame them. The cold in these parts gets bad enough to warrant a nice hike up the hill to soak up some warmth. So what if you’ve to invite the whole family? Speaking of family, some langurs in this particular troop who wished to stay in bed, stayed behind. Some others were busy feeding their young.
We had been following the langurs for a month and were fairly acquainted with their behavior. We anticipated that they would move on to some other location after having ‘breakfast’. They didn’t disappoint. As was expected, they soon started to move towards the village. Their intention was clear: to feed on the crops!
The troop travelled along the upper edge of the hill. There were hardly any houses over there. Even the villagers didn’t frequent that place often. The terrain was somewhat steep and had denser tree cover. At around 10 a.m., part of the langur troop climbed down the cliff and settled themselves in the crop field. The field provided them a cool place, a short distance from the village, helping them munch on fresh green mustard and wheat leaves. Other langurs were on their way to join in. Quite a party.
The raid
All was well in this party until, quite suddenly, a few langurs ran away. They frantically began looking for cover in high tree branches. We knew this scurrying commotion must have been a reaction to the dogs ‘employed’ by the villagers to keep the langurs at bay. Dogs generally raid silently: you’d never really see or hear them. The only way you’d know they were there would be through the frantic running of langurs in this region..
But what happened next will shock your data sheets (and socks).
Two or three dogs invaded the troop, scattering langur. They also managed to trap a few langurs in an area near the cliff. At one point, over a dozen infants and juveniles with just one or two adult females were isolated on the cliff, cornered by a dog that was determined to prevent them from moving into the crop field.
Whenever they feel threatened or isolated, non-adult langurs make a certain prolonged low pitched ‘keeee-ke-kee-ke-ke’ sounding call for rescue, and scan their immediate surroundings intensely for signs of help. Being primarily composed of younglings, the group of trapped langurs started to vocalize, shouting for help!
Almost as though straight out of a thriller, an adult male langur suddenly sprang into view. He was sitting on a high tree branch on the other side of the crop field, facing the sub-group left behind, with a second dog at his tail. He was scanning the landscape, worried, looking for a chance to join the rest of the troop, wanting to fall behind safety in numbers. Could he initiate a rescue mission?
Rescue mission – phase A
The adult male was only about a 100 meters from the cliff – not much of a distance, but with two dogs lined up in between, the langurs would need to come up with a good plan.
A second adult male appeared within a minute or so, positioning himself on a high branch of another tree to the left of the first male monkey who jumped into the picture, maintaining a little distance in between. A few other langurs were also scattered around here, where a third dog was on duty.
Back where the action was unpacking, one langur moved towards a lower branch, within possible reach of the dogs, but at a sufficient distance to maintain safety. He acted as a distraction to get the dogs away from the first langur, and to make room for an opportunity for himself – to run to the cliff like there’s no tomorrow. Without wasting another moment, langur number 1 climbed down and sprinted. He avoided the dogs brilliantly and arrived at the cliff, where other members of his family were waiting for help.
Rescue mission – phase B
Outsmarted and confused, the two dogs were now scurrying around to reconvene. But it appeared the second langur had more moves left in his master plan. He provoked the dogs again, tricking them into chasing him, eventually moving further away and out of sight. The dogs took the bait, followed him, but all we could hear, at this point, was a little bit of barking.
The first male langur, now sitting with his family, appeared quite relaxed. Indeed, he looked like he was having the time of his life. The dog that was assigned to his case, not so much. Most of the langurs in the troop were reunited. They could now wait out any threat without hurry. They kept an eye on the horizon for another opportunity to retreat under cover. For almost five minutes, nothing happened. Finally, after a couple more minutes, one of the dogs couldn’t resist the possibility of more action, and ran away towards the point where one langur was still waiting out the threat alone. This gave the troop the opportunity to run away. With a mixture of caution and speed, they sprinted towards a safe exit, and kept moving on to a much safer location. Possibly somewhere without dogs. Dogs were not the langurs’ best friends.
It’s a commonly acknowledged fact that pollinators such as bees and butterflies are vital for food crops and ultimately, our health and well-being. But, pollinators are declining. As most conservation problems are created by humans, the solution to protecting pollinators lies in changing human behaviour. However, most behaviour change interventions for conservation often lack grounding in psychology.
In an article in Conservation Biology, Marselle et al (2020) examined EU national policies for pollinator conservation, and showed that these policies overly rely on behaviour change interventions that are known to be ineffective, and under use interventions known to be effective for changing human behaviour. This may impair the effectiveness of the policies and our ability to conserve pollinators.
Researchers found that the most frequent behaviour change intervention for pollinator conservation was
a) education (23 percent; providing information to increase knowledge or understanding). However, education is not very effective at changing people’s conservation behaviour, as information in itself does not always guarantee action. This is because behaviour is also influenced by other factors, such as social pressure, physical opportunity, or motivation to do a behaviour.
The least frequent interventions found in the pollinator conservation actions were
b) modelling (4 percent; providing an example for people to imitate, like a role model), c) incentivization (3 percent; creating an expectation of reward), or restriction (2 percent; using rules to reduce opportunity to engage in the favourable behaviour or the behaviour that is being targeted to achieve), and d) coercion— designing interventions to create an expectation of punishment or increased cost to discourage behaviour – was not mentioned in any of the pollinator policies.
However, these three types of interventions have been found to be highly effective for changing people’s conservation behaviour.
Importantly, 41 percent of all pollinator conservation actions failed to identify who needed to change their behaviour! This lack of detail is likely to weaken the actionability of behaviour change interventions.
This study points to the importance of considering psychology when designing conservation policies in order to be more effective—otherwise, we will continue to lose our bees and butterflies.
Freshwater ecosystems have two important features. First, they are surrounded by land and very strongly embedded in terrestrial ecosystems. Second, they generally face strong human interaction, stronger than the high seas. These mean that we can utilize them in many ways. It also means that they are important for the rest of the biosphere in many ways. Being socio-ecological systems that interconnect distant areas and offer multiple ecosystem services, the conservation of freshwater bodies is full of compromise.
A lake, a river or a pond has clear borders. In a sense, these are island-like locations, isolated in terrestrial landscapes. Yet, in a functional sense, the ecological processes in freshwater communities quite strongly link them to the surrounding terrestrial systems. In fact, the size proportion of coastal areas is much larger than in the sea and these riparian habitats host a huge diversity of organisms.
Instead of creating better and more accurate definitions, and trying to conceptually separate freshwater bodies from the terrestrial world (see the traditions of limnology or hydrobiology), it would be wiser to explicitly study their soft borders and recognize the importance of the cross-disciplinary grey zones between water and land.
Freshwater ecosystems and their networks
Whenever several components are linked and we wish to understand the consequences of these connections, network analysis is a good first step.
Freshwater ecosystems are parts of two kinds of networks: a) The habitat network, where water bodies are linked to each other across landscape ecology. b) The food web, containing clearly aquatic, clearly terrestrial and shared components (either living organisms or nutrient flows).
The freshwater habitat network, at the first glance, is a continuous system of wet habitats, creeks turning to rivers and lakes. The continuity is not absolutely necessary (e.g. tarns). But materials and organisms can also jump between wet locations. For example, transported by water birds, travelling either on their legs or in their guts. This is one reason why rivers should not be regarded as perfectly directed systems. Organisms clearly travel in both directions, either in the air or in the water. Moreover, clearly, several aquatic organisms can survive on land. So they are simply able to move across the dry matrix (i.e. amphibians, snakes). In order to better understand the conservation challenges for freshwater ecosystems and aquatic organisms, it is crucial to better monitor, model and really assess these processes and spatial aspects. It does make a big difference to be really isolated or just embedded in a heterogeneous and mixed landscape.
Freshwater ecosystems, just like any other, have no clear borders. The fish and the mole have really poorly overlapping habitats, but even they can be indirectly interacting across a chain of other organisms. Several studies have shown surprisingly strong interactions between aquatic and terrestrial species. These are cascading and, after all, the aquatic food web and the terrestrial one are just two compartments of the big one. In fact, this recognition was one of the motivations for creating landscape ecology. Apart from the geographical one, this was its functional raison d’être. Researchers have shown how trophic cascades across the water-land boundary: predatory fish reduced the amount of dragonfly larvae, less adult dragonflies consumed less pollinator insects, and terrestrial plants were less pollen-limited and flourished. The myriads of cascades like these connect the two officially totally different habitats and, given the diversity of riparian communities, this is more the rule than the exception.
For people interested in categorical thinking and classification, landscape ecology and all processes inter-connecting different systems are disturbing. For people who prefer to think functionally, this is ecology – and not surprising at all.
Positive and negative, as well as strong and weak effects are spreading in these interconnected networks. Perturbations (e.g. invasion, pollution) generate point-like or system-wise effects. In order to monitor, assess or predict these, one can perform modelling efforts. Better understanding their complementary nature will only help to make ecosystem models really predictive and applicable.
Extinction and invasion are often considered as two major symptoms of climate change, two major dangers for natural ecosystems. Global extinction is clearly a tragic loss. Local extinction and invasion are mechanisms of compositional shifts in any ecosystem and, ultimately, these are the ways in which ecosystems adapt to altered conditions. In a sense, these are not the problem, but the solution.
As a key ecosystem service from a human perspective, the healthy functioning of the whole, spatially and functionally interconnected system is crucial for water quality. The cycling of nitrogen and phosphorus strongly influences algal production and the composition of the aquatic microbiome is strongly sensitive to water chemistry and affects several higher-level organisms. Overall, the whole food web (or trophic network) is a stage where key players act, either facing the challenges or buffering and balancing external effects. But, after all this, what is external. This is the question.
So, one Sunday afternoon, I go to the bull-fight and they put me in the bullring. The bull comes out. I look at the bull and the bull, he look at me. He look at me, and I look at the bull. And you know what, the bull was better looking than me.’ -Juan Cervantes, Mind Your Language, 1978.
We’ve been mulling over our recent posts with a seed of doubt in our minds. We cannot help but notice that our writings may have aggravated animal rights activists, castigated compassionate conservationists, and berated vegans and plant lovers. To our critics, we clearly voice irrational arguments and cross-eyed views of the world.
So we’ve tried a thought experiment. We have simply asked: ‘What if they are right?’
Well, then, every animal must be given its due. Each one is a product of hundreds of millions of years of evolution on Earth. The history that each individual carries in its DNA, the carefully selected genes of the blind watchmaker, the memories of each moment of its personal journey must be celebrated, revered, venerated.
But what, practically, must follow from such sentiments? Perhaps the most important point is that it means that we must respect each animal not from our narrow anthropomorphic, anthropocentric perspective, but from the view of animal itself, of nature herself, of the watchmaker her/himself. And this in turn means that we must dig deeper into our engagements with the animal world, and rip out the very roots of these abusive relationships. This leads to a few inescapable conclusions, a trilogy of four to be precise.
First, no wildlife watching. Quite simply, wild animals don’t like to be looked at. For most vertebrates, direct eye contact is a sign of aggression. Their motto is ‘Don’t be looking at me that way. In fact, don’t look at me at all’. And even in the absence of actual eye contact, being closely observed by a human (or worse, a flock of them) is almost a clear signal of predatory intent. Thus begins the physiological domino. It starts so simply, each line of the programme creating a new effect, just like poetry. First, a rush… heat… her heart flutters.1 And as the cocktail of chemicals floods the system, lion or lizard, fish or flamingo, she runs. All this stress from one little self-indulgent, greedy glance.
So, unless one is planning a romantic moonlight dinner, people should not look at wild animals at all. No more wildlife voyeurism, no bird-watching, not a single dive to scare sleeping parrotfish.
Second, no more domestic animals (with the exception of cats, who quietly decided that the comforts of domestication were suited to them). After all, they did not exactly ask to be domesticated. Of course, the only one who truly embraced the consequences of domestication was the cow at the restaurant at the end of the universe, which approached Zaphod Beeblebrox’s table ‘a large fat meaty quadruped of the bovine type with large watery eyes, small horns and what might almost have been an ingratiating smile on its lips.’
“Good evening,” it lowed and sat back heavily on its haunches, “I am the main Dish of the Day. May I interest you in the parts of my body?”’
Chickens get no evolutionary love from laying unfertilized eggs, nor can cows fatten their calves with dairy products. We should release them all into the wild, and allow them the unbridled joy of the wild’s consequences.
And no domestic animals also means, by the way, no pets. No self-respecting animal wants to be reduced to an emotional appendage. Caged and cuddled alike, every animal aspires to be master of its own destiny. As brief and bloody as it might be. Set them free, we say. Let cats run wild and decimate bird and lizard populations around the world, even more than they do now. Let packs of dogs roam our streets and pick off the cats, and the occasional child. Let hamsters….
Finally, why stop at animals? We must also free plants. Gardens are basically glorified factories, exploiting sentient life forms for their colour, scent and form. Plants are pruned mercilessly without the remotest jot of participation, or prior-informed consent. No gardener has ever, not ever, used the word ‘holiday’ to her geraniums. Enough, we say, enough.
Fifth and mostly harmless, alien life forms. We wish to leave no stone unturned in our efforts to minimize human impact on life everywhere. Should there be an invasion by universe conquering computer geeks , every carbon-based multicellular life form must be received with the same respect and treated with dignity, regardless of their intentions. We do have to draw the line somewhere. Unicellular organisms and life forms based on other elements – Silicon’s campaign notwithstanding – simply do not cut it.
Woolly took off towards the woods, and in the golden evening light, he found them, fluttering around the trees and calling to each other.
“I’ve seen you! I’ve found you all!” laughed one moth in the middle.
“Ooh, who are you?” she asked as she caught sight of Woolly.
“Hello! My name’s Woolly. It’s my first day as a moth, and I’m not really sure what I’m supposed to do. What are you up to?”
“We’re just playing hide and seek here until it gets dark enough to go out. Do you want to play too?”
Of course, Woolly wanted to play. Maybe his troubles were over, now that he’d found this little group of moths.
“I’ll be the seeker this time,” he decided and closed his eyes to let the others hide.
They were all sorts of patterns, speckled or striped, in a multitude of shades of brown and grey and white. Once they landed on the trees and bushes, they just disappeared, and it took Woolly an awfully long time to find them again. Yet when it was his turn to hide, he was always the first to be spotted.
Copying the other moths, he hid on tree bark and in the long grass. He hid behind stones and under leaves, but still, they had no trouble finding him.
“You’re all so good at this,” he sighed. “I’m useless!”
“You’re quite hard to see from far away,” they tried to console him. “But close up, those little red patches on your face always give you away. Maybe this isn’t the right game for you.”
They were trying to be nice, but Woolly could tell they didn’t want to play with him anymore. It really was hard to make friends out here.
He fluttered away from the other moths and settled on a fallen leaf. What should he do next? Where should he go?
These are just a few pages from a longer story, which can be found at the following link https://issuu.com/universityofexeter/docs/woollybook_29thjune.compressed
The first streaks of dawn would usher in our “hunt” – to walk through grasslands to spot the Montagu’s and Pallid harriers – migratory birds of prey. By September, the summer home of the harriers, in Kazakhstan and Central Asia turns bitterly cold and gets covered with snow, leaving them with few options for finding food, such as voles, insects, and small birds. Thus, they begin an arduous migration, which will take them skimming over lofty mountains in Central Asia, over sandy and deserted dunes in Afghanistan, and into many parts of India. They arrive between September and November, to find food amidst the lush green grass and crops.
Each morning during the months that the harriers are in India, Ganesh and I walk the trails, trying to spot and count the harriers. This is like running through the attendance register at school: we want to know how many harriers have turned up, each day, and across the season. A reduction in their number can tell us if something may have changed in the grasslands, such as the availability of their food.
A gliding, elegant blue-grey harrier makes a beautiful sight and is more refreshing than our morning cups of coffee! Many harriers sport red-brown feathers, meaning they are young birds. Imagine a 4-month old bird flying over the mountains and deserts to meet you and me here in India!
Once here, the harriers fly low over the ground, barely a few feet above the grass, unlike eagles that scan for prey from high above. We watch them eagerly, as they perform various acrobatic flights to corner their prey, finally pouncing on a large grasshopper or small bird. Having caught a meal, the harrier then flies to a small open patch on the ground to prevent its prey from escaping, and dissects it carefully, consuming only the most nutritious parts. We also take a keen interest in their prey, noting down how many of each type are available in the grasslands, as this will tell us whether the harriers’ food has dwindled, changed, or increased. Remember, these harriers come from thousands of kilometers away in search of food, in these fast-disappearing grasslands in India. And the grasslands and savannahs are not only important for the harriers. They are also home to various wild grasses, wolves, foxes, and unique birds, and provide pasture to goats, sheep, and cattle.
An afternoon nap for the harriers in the shade suggests that we take one too since the grasslands are located in extremely hot and dry areas of the country: around the deserts of Rajasthan, in the grasslands of Gujarat, and on the Deccan plateau all the way into Southern Tamil Nadu. After lunch and a cup of tea, we head off to the grassland once again to a small patch called a harrier roost. A roost is an interesting place – a patch of tall grass, which the harriers hustle into each evening to make their bed. They trample the soft grass into a cup and form a cozy bed just like you and I wrap ourselves in blankets. This is a safe haven for them each night, to guard themselves against large owls, foxes, and jungle cats that might prey on them. Here, they spit out small pellets. These pellets contain undigested feathers, hair, bones, and insect body parts from their food, which are a precious resource for us. We collect them to observe under the microscope later, to find out what they have eaten. Pellets can tell us more about how these harriers survive in harsh weather, and how they change their diet as the grass starts to dry out and the grasshoppers become fewer in number!
From the gliding and feeding frenzy through the morning and afternoon, it has been a long day for the harriers. It is time to rest, and just like a crowd gathering in a cafe of an evening, the harriers can be seen flocking at their favourite mound or in a bare patch close to their roost. They perch silently, sometimes inviting others flying by with a shriek, sometimes fighting for a place, and preen their ruffled feathers before sleep. They also offer other harriers a clue to the site of their ‘camp,’ by flying in short circles over their roost. As the sun sets, they drop into the grass ever so quietly but remain alert enough to fly off on sensing danger. It’s a day’s story that recurs throughout the winter months, weaving the pattern of the seasons. As the green grass takes on golden brown hues with the onset of summer in March, the harriers start to turn back, to resume their migratory journey beyond the mountains and deserts.
Fun facts
There are 16 species of harriers belonging to the genus Circus distributed worldwide, out of which 6 species visit India each winter. These are the Montagu’s harrier (Circus pygargus), Pallid harrier (Circus macrourus), Eurasian Marsh harrier (Circus aeruginosus), Pied Harrier (Circus melanoleucos), Hen harrier (Circus cyaneus) and the Eastern Marsh harrier (Circus spilonotus).
Etymology – The name “harrier” may have come from an old English term “hergian” meaning to harass by hostile attacks. The scientific name “Circus” may have come from the Greek work “kirkos” meaning to fly around in circles.
Bright and cryptic colors – The males of most harriers are a bright grey in colour, while the females and young harriers sport a subtler mix of brown, white, and red-brown plumage.
Habitat – The Montagu’s, Pallid, and Hen harriers inhabit dry grasslands and savannahs in arid and semi-arid areas, while Marsh harriers inhabit wetlands and marshes. Harriers need grass – Harriers, unlike other large birds of prey, nest and roost on the ground in tall and dense grass.
Migration – Harriers migrate over a distance of 5000 km each winter, from Central Asia into India, or from parts of Europe into Africa! They may follow one route to reach their destination and another to fly back to their breeding grounds.
A spectacle – Harrier roosts in Gujarat (in the Blackbuck National Park, in Velavadhar) can contain an astounding 1200 birds by September-October each year! They can be seen flying around in circles in unison in the late evenings.
Swoop-snatch – Harriers are adept at snatching their prey in mid-air after they flush them with their swooping flight.
Voracious appetite – From a brief survey of harriers in Velavadhar (Gujarat), the flock of harriers in Velavadhar alone was estimated to consume between 2 and 2.5 million locusts during a single winter in India.
A varied menu – Harriers consume a wide variety of prey, including grasshoppers, small birds, small lizards (Sitana species), and small rodents.
Living together – Harriers form communal roosts that include more than one species of harrier. Roosting is preceded by spurts of flying around in circles before diving into the grass.
A web of life – Harriers share the grasslands with other unique and endemic fauna, such as the blackbuck, the wolf, the florican, and the critically endangered Indian bustard.
Ornaments – Scientists have used small numbered metal rings, placed on the legs of individual harriers, to track their movement patterns. You can learn more about some of the birds we have ringed here: https://harrierwatch.com/wp/index.php/report-your-sightings/
Invertebrates amaze me. Animals without a backbone make up the majority of species on earth. Mostly we humans will admire the pretty ones, try to get rid of the annoying or dangerous ones, and hardly notice the rest. But once you start looking at them, especially under a microscope, the beauty and diversity is delightful. That’s when you start looking for them.
The first invertebrates I encountered as a child were the dead cockroaches I would collect off the kitchen floor after my parents had put poison down, the ants I would tease by directing where they could walk and the snails I would make houses for in the garden. Then came my big revelation. A trip to the woods with the “Museum Club” showed me that invertebrates, and all of nature, could be studied.
I became a community ecologist so I could understand why species occur where they do and how they interact with each other. Invertebrates are the perfect study animals for this. I can examine interactions between predators and prey, between animals that help each other, or those that compete against each other, all in a handful of leaf litter. I have been doing just that in my current research project to understand what speeds up the decomposition (or breakdown) of leaf litter and the release of nutrients for plant growth.
A few years ago I set up a litter bag experiment at two forest sites in New Zealand: Hauturu-oToi, an offshore island, and the Waitakere Ranges on the mainland. Litterbags are the method I use to understand how invertebrates influence leaf litter decomposition. I simply put a net bag containing a certain amount of leaf litter out in the forest. Several months later I collect the bag. Back at the lab, I measure how much the leaves have decomposed and then count the invertebrates which have found their way into the bags. These are the invertebrates that have influenced decomposition, directly or indirectly.
Days in the field are wonderful. My litter bags are located randomly through the bush and are usually reached by ‘bush-bashing’ or off-track navigation using a GPS.
I love picking my way through the dense tangle of trees, shrubs, climbers, and grasses, scrambling up and down steep slopes, wading across streams, and emerging into an occasional clearing or high point to feel the breeze and hear the not-so-distant sea. On Hauturu, birds and their song are an enchanting distraction. Near one of my plots, there is a tall Kauri tree that emerges above the forest canopy and my collections and measurements there are often accompanied by the haunting “Ko-ka-ko” call of the Kokako bird. Not so in the Waitakere Ranges though, where the unnerving silence of the bush is a reminder of the damage done to New Zealand’s native birds by invasive rats.
Time back in the lab can be just as exciting. The quality and diversity of the leaf litter itself impact how fast leaves decompose and the community of invertebrates that live in it. Identifying the hundreds of species of invertebrates from the litter bags has shown that a diverse community of invertebrates is more important for decomposition than any one species or group (even though some groups, such as amphipods, can really eat through the litter). I’m now using lab techniques to look at the feeding and genetic relationships between invertebrate species in the litterbags. I hope this can tell me how it is that diverse communities decompose litter faster, and what keeps those communities diverse.
Fun facts
A handful of leaf litter may look like just a collection of dead leaves with the occasional millipede, centipede, woodlouse, or earthworm visible, but hidden from view at a micro-level is an astonishing diversity of tiny invertebrates. Here are some fun facts about just a few of them. All of the species shown here are under 2 mm.
Springtails (Collembola) are so-called because they possess a spring or forked structure on the underside of their bodies used for jumping when the animal senses danger. It is usually held against the body, but if a predator is detected nearby, the spring is released sending the springtail flying out of harm’s way. These animals are very abundant in leaf litter and soil. They eat dead leaves and the bacteria and fungi that live in the leaf litter. Their poo provides food for micro-organisms that do most of the decomposition and springtails are also an important prey item for lots of litter invertebrates.
Mites (Acari)
Mites are the most numerous invertebrates living in the leaf litter and among the smallest. There are many groups that perform different roles in the food web. Here are just three of them:
The Oribatid mites are distinctive because most adults are very smooth, with a hard exoskeleton or outer body surface, making them difficult for predators to catch and eat. This is just as well since they are also slow-moving creatures, with slow development. They can take up to seven years to grow from eggs and larvae to nymphs and adults. Oribatid mites mostly feed on decaying leaves and fungi and are important decomposers.
In contrast, the Mesostigmatid mites are active predators, searching through the leaves and soil pores to find small invertebrates including Collembolans, softer-bodied mites, and mite nymphs. Rather than eating their prey whole, they inject digestive fluids into their prey and then suck up the dissolved tissues.
Prostigmatid mites are more likely to be an ambush or sit-and-wait predators. Some have developed ingenious ways to catch their prey. For example, the Bellidae or Snout mites produce strands of sticky silk from glands in their mouth to entangle their prey and stop them from escaping.
Beetles (Coleoptera) Hidden in the leaf litter are a diverse subfamily of tiny beetles called the Pselaphinae, pronounced sel-a-feen-eh. These specialised predators eat mostly collembolans and mites. Living in the leaf litter, they are not visual hunters but use the hundreds of hairs on the tip of their antennae to detect prey using smell and touch. Their touch can be so delicate they do not trigger the escape response in Collembola. Many species will grab hold of their prey using sticky structures on their maxillary palps (one of several mouthparts) and a sticky substance they produce.
Lakshmi Siddi lives deep in the thick, evergreen forests of the Western Ghats of India, in a region called the Malnad. Her home is located on a little lip of land sticking out of a forested slope. She and her family have an orchard and kitchen garden that they tend. A stream flows by at the bottom of her land, where her son and his friends often go to catch fish using bamboo traps. This is an idyllic setting, but tough since you have to hike many kilometres to get to the nearest bus stop to go anywhere. When the monsoon rain comes lashing down, you also have to deal with blood-sucking leeches.
Hardly any sunlight reaches Lakshmi’s forest food garden and she cannot grow the usual range of vegetables that need a lot of direct sunshine. But she does have some hidden treasures in there that live and grow underground. They make it from her garden to her kitchen, becoming part of the delicious foods that Lakshmi cooks and loves to serve her family and friends. These underground denizens are tubers which are an important part of the local cuisine.
Tubers thrive in the shade, are very hardy, and are both tasty and nutritious. There is a huge diversity of tubers and they come in a variety of shapes and sizes.
When tubers are mentioned, many of us only think of potatoes and stop there. The truth is that we have more native tubers in India than we might have ever imagined. Each of them is special and can be made into countless dishes. Move over potato chips and aloo gobi. Enter with pride tuber biryani, tuber sambar, tuber sabzi, chutney and puran poli, tuber raitha, papad, pickle, and chips. Even tuber ice cream!
If you want to get totally tubered, consider Taro (Colocasia or Arbi) of which at least 10 varieties grow where Lakshmi lives, Elephant Foot Yam (Amorphophallus species), Tapioca, Sweet Potato, wild Arrowroot, Turmeric, and Ginger. And these are just some of the possibilities. Tubers provide generously too. Some yams, for example, may look like a simple, little plant above ground, but this could be just the visible part of a huge, 6-foot long underground giant, branching out in all directions, almost like octopus arms!
In a bid to make tubers more popular and people aware of their goodness, Lakshmi and her friend Renuka recently carried two sackfuls to the city of Bengaluru. They participated in seed and food festival there called the Malnad Mela. They had a splendid time with visitors, who learned all they could from these mistresses of tubers. Lakshmi and Renuka felt it was important for them to make people see that tubers are an important food source for the present and future. They were eager to help people remember again a forgotten food and to encourage them to put it back on their menus. When the women did a tally of their earnings, they had made Rs. 11,000 in two days. A well-deserved, handsome amount for providing wholesome, down-to-earth goodness and wisdom to people before it is lost forever.
In this age of climate change, unpredictable rains, and environmental uncertainties, tubers could provide a vital solution to food crises. The value of tubers is so high that there is even a separate institution of scientists dedicated to discovering more about them — the Central Tuber Crop Research Institute in Kerala.
So, the next time you are near a sabziwallah or the market, do look for these marvellous vegetables and try them out at home. You and your family may be in for some nice surprises.
In the meanwhile, in Lakshmi’s part of the planet, where the forests and rivers are still healthy and human communities are closely connected to nature, tigers occasionally roam where tubers dare to grow!
Lakshmi Siddi’s Arbi YumYum
“I am not sure how old this recipe is, where it came from or how it survived this long. I do know though that generations of children and grandchildren have enjoyed this dish. I hope the kids reading this try it out for themselves and tell us their experience.”
Lakshmi
Traditional version
• Roast the tubers on live coals so they get cooked from the inside and the outer charred skin easily comes off. • Add salt and tamarind • Add pepper or chilly powder (optional) Enjoy!
Note: Roasting preserves the nutrition and tastes better than boiling the tubers and throwing away the water. Tamarind helps break down the calcium oxalate crystals in arbhi that cause your throat to itch.
Present version
• Boil the arbi in water • Drain and peel • Shallow fry till roasted and crisp in some oil and add salt, pepper/chilly powder, and tamarind to taste. • Some people add turmeric, jeera, and coriander seed powder too.
Lakshmi says that arbi makes delicious bondas when dipped in a chickpea four (besan) batter to which salt, chilly powder, tamarind, and other spices have been added.
Wanted: Tuber Chefs
Have a tuber recipe to share? Send it to us and you may find yourself starring in a Tuber Cook Book that is being created by Lakshmi and her friends. All selected contributors will get a copy of the Tuber Recipe booklet when it comes out! Please do give us the name of the tuber and exactly how you cook it when writing in.
Tubers Tid-bits
People forage for tubers in the wild or grow them in gardens. Tubers can even be grown in pots in an urban home and need little care.
For the amount of energy required in planting and caring for the tuber, the yield is high and far surpasses what we get with many other regular crops.
Tubers don’t need synthetic fertilisers or pesticides to grow.
Tubers are not afraid of drought. They will stay quietly underground when conditions are harsh, and go about their business of growing and providing when the time is right.
Tubers also lend themselves to a variety of traditional and modern foods across the Indian sub-continent and the world over. A tuber cook book would cover a wide range of dishes and run into hundreds of recipes!
Tubers have medicinal value too that older members of agricultural and forest communities know about. For instance, arrowroot tubers are harvested, dried, powdered and used as baby food or for convalescents. Arrowroot powder is also used to relieve diarrhoea and dysentery while Elephant Foot Yam is eaten to treat piles.
The Tale of Tapioca:
Tapioca (Cassava) is originally from South America
In the Malnad, the local name for Tapioca is Baragala Genasu — the drought tuber.
It certainly lives up to its name, growing fiercely where other plants have difficulty or just die.
During World War II, the Maharajah of Travancore promoted the growing of Tapioca to tide people over food shortages in his kingdom.
Soon it became integrated into the cuisine there and Kappa (Tapioca) and fish curry became an important part of the local diet.
Tapioca is still a popular plant grown in many home gardens of Kerala.
When I am at my study site, every day begins with a wake-up alarm call at 4.45 AM. I sneak a quick look outside the window and observe the sky to plan for my day’s work. A clear blue sky suggests an exciting day ahead. I work in Kyongnosla Alpine Sanctuary, between 3200m and 4200m above sea level. This high elevation region in Sikkim is home to many flowering plants, among them the colourful Rhododendrons that are world-famous for their stunningly beautiful flowers.
These trees are not only a visual extravaganza, a resource for the heart and soul, but they also provide the physical resources equally vital for life. They are the cover for many wild animals such as goral, Himalayan black bear, red fox, yellow-throated martin, red panda, and the iconic snow leopard. They provide nectar and pollen to many birds and several tiny insects. One can also see pika (a small rodent resembling a rabbit), musk deer, and other ungulates feeding on the Rhododendron flowers. In addition, the leaves and flowers of some Rhododendrons are used for making incense and wine. Supporting so many life forms, as well as the local economy, no wonder they are called the “tree of souls” of this region. In my research, I study 10 Rhododendron species. I am especially interested in understanding the timings of events such as budding, flowering, and fruiting of these plants and the role played by climate and pollinators in those events. I record the dates when the Rhododendrons produce buds and flowers, and then later I record the dates when they produce fruits and seeds. I also observe the pollinators of various shapes and sizes who come to visit the Rhododendron flowers.
The flowering of Rhododendrons in Kyongnosla starts during early May when the temperature rises, melting the snow cover in this region. I start my daily trek with my field assistant, Sonam, at 5:10 AM and reach the closest field site in an hour. When the ground is under nearly 2 to 3 feet of snow it is impossible to recognize the usual trails. That is when Sonam’s advice to observe the footprints of wild animals, and especially of the Himalayan black bear, comes in handy. Yes, bears always help us discover the right path there and back! As we climb higher into the mountains we are welcomed by cold winds, and freezing weather. As the temperature starts dropping, our fingers become numb, making it tough to enter observations in our notebooks. However, Sonam always has suggestions to survive in the chilly weather. He knows the location of caves and other warm areas inside the forest, and we light a fire with dry leaves, even though it barely lasts for a few minutes. But in spite of this harsh weather, we are among the lucky few who can enjoy the breathtaking views of the valleys full of flowers and the clear blue sky, surrounded by the third highest peak in the world.
The climbing, altitude, and cold all mean that this can be hungry work. And just like us, plants need food to survive here too. Their food is in the form of rainwater, sunlight, and nutrients from the soil. But unlike us, plants cannot move in search of food or favourable conditions. So they wait for the time when the conditions are right for them to grow and produce leaves and flowers. Before they can produce seeds, most plants must first be pollinated. This means that they must have pollen from other flowers of the same plant as well as other individuals of a similar plant type delivered to them by more mobile species. In the case of Rhododendrons, birds act as pollinators at lower elevations, where it is slightly warmer, while insects such as bumblebees pollinate Rhododendrons that grow higher up, near the mountaintops. This is because many birds cannot withstand the very cold temperatures that bumblebees can. These bees have hairy bodies, which helps them cope with the extreme cold temperatures.
I am finding that temperature is the main thing that determines the flowering time of Rhododendrons. Rhododendrons wait for the right temperature conditions before they flower. This starts around May at lower elevations and can be as late as June as you go higher up the mountains. This is also the time when the numbers of pollinators, such as birds and bees, are greatest.
These plants are highly adapted to the extremes of their mountain home. In fact, if conditions were to get ‘easier’, this could actually cause them problems. For example, if temperatures increase with climate change, then these Rhododendrons might start to flower earlier. If that happens they might not meet their pollinators. If plants and pollinators are out of sync, then both suffer. This could have important implications!
The future for the species that live in this high-altitude world is uncertain and we still have a lot to learn. I hope that through my work I may be able to uncover some of the mysteries of life at the heart of this mountain realm.
I live on a small island called Havelock, in the Andamans, and I work in a SCUBA diving school for a living. Using my background in marine biology, I conduct research on coral reefs around Havelock and take people out diving to introduce them to some of the many living jewels of the sea.
Corals are colourful animals, related to jellyfish, that slowly but carefully build the limestone structures that form reefs, on which a diversity of other marine life thrives.
A majority of the corals around the Andaman Islands died in one dramatic episode in 2010, in a phenomenon called “mass bleaching”. This also happened to other corals in the Indian and Pacific oceans. We know that corals were bleached and killed at that time due to the warming of the oceans and increasing carbon dioxide in the atmosphere. What we do not fully know yet is: How are coral reefs recovering? And why are some reefs recovering faster and others slower?
Through my research around Havelock, I am trying to answer these questions. I survey damaged coral reefs to study how much new coral is growing back, and what species these are. I also try to find out whether there are any factors that might prevent coral from recovering smoothly.
Preparing for a day of fieldwork diving is very similar to getting ready for a day in the forest, except that my dive buddy and I load up a boat instead of a jeep! We wear neoprene wetsuits beforehand but set up our SCUBA gear and research equipment on the boat. We never forget to carry food, water, and emergency medical kits.
Using a handheld GPS, we navigate to a mooring line above our dive site, Minerva. Once anchored, my dive buddy and I help each other carefully put on our SCUBA gear. Before jumping into the water, we split the load of all the research tools that need to be taken so that our descent to the bottom is smooth. We want to avoid having a camera floating up this way or a measuring tape sinking down that way!
Once at the bottom there is no time to waste because our full tank of air will allow us a dive time of one hour at most. My buddy gets to work, reeling out the 30-meter long tape over the reef that we are surveying. I place a 1-meter square frame, called a quadrat, over the coral. Then hover above it to photograph the coral—and everything else—that lies within the outlines of the square frame. With the tape to guide me, I collect this photographic data every ten meters along with the measuring tape. We survey several such transects to make sure we have sufficiently covered the dive site.
In the last ten minutes of the dive, we swim over and check on the data loggers we had previously placed at Minerva. These loggers have sensors that automatically measure temperature and light intensity underwater for months on end, and the data loggers store all that information. We regularly visit them, with a toothbrush in hand, to scrub off sand and algae that settle on the sensors and interfere with their working properly.
Within an hour of finishing our dive, we are back on land, rinsing off the salt from our SCUBA and research tools with fresh water. After a hot lunch and an afternoon nap to get over post-dive drowsiness, I am ready to start processing my quadrat photographs of coral. This part of fieldwork is almost as exciting as the actual diving itself (if it did not involve hours of computer work!). I still thoroughly enjoy analysing my quadrat photos—identifying different corals and measuring their sizes. The next step would be to look at whether temperature and light intensity in Minerva and other dive sites make a difference in how these animals are recovering. This is when I get to really start answering my research questions, by documenting coral recovery. Someday this information could enable us to help reefs in crisis!
A couple of years ago, some of us, who were then in Class VIII, created a mural of the Tree of Life on a wall in our senior school in Rishi Valley. This mural is a symbol of our learning and understanding of Charles Darwin’s Theory of Evolution. The Tree of Life describes the evolutionary relationships between all living beings on this planet. Darwin often used the image of a tree to express his theory of evolution.
“The affinities of all the beings of the same class have sometimes been represented by a great tree. I believe this simile largely speaks the truth. The green and budding twigs may represent existing species; and those produced during former years may represent the long succession of extinct species”
From Chapter IV of Charles Darwin’s “On the Origin of Species”
The idea of evolution was introduced to us by our biology teacher. As we progressed through the lesson our teacher suggested that we paint our version of the Tree of Life on a wall in our classroom. A few of us enthusiastically took up the idea but decided that we would like to create a larger version on an empty wall in senior school. We first painted the background yellow, and on that, we then drew the skeleton of the tree with chalk. We used different shades of browns, greens, and yellows, and also brighter colors like red, purple, and blue for the rest.
We chose the branches, and the kinds of life forms to be included, in consultation with our biology teacher. At the base of the tree is a red seed in which we drew a double helix, to signify that all life evolved from DNA.
Above this, we drew three branches to represent the three Domains — the Monera (Bacteria), Archaea, and Eukaryotes. Bacteria (on the right of the trunk) are shown by E.coli. We decided to paint several species of Archaea (on the left of the trunk) as these aren’t usually shown in textbooks. The branch points also indicate that Bacteria speciated before Archaea. Above these one sees the great variety of Eukaryotes, with almost all the major groups. These include fungi, insects, and plants (ranging from ferns to flowering plants) and major Chordate orders such as birds, amphibians, reptiles, and mammals. The few dry leaves that are shown fallen on the ground are meant to represent extinct species, indicating that there have been many dead-ends in evolution.
“Of the many twigs which flourished when the tree was a mere bush, only two or three, now grown into great branches, yet survive and bear the other branches; so with the species which lived during long-past geological periods, very few have left living and modified descendants”
From Chapter IV of Charles Darwin’s “On the Origin of Species”
One of our favourite images is of the dinosaur, and it is also a reminder that this once mighty group of animals was completely wiped off the face of the earth 65 million years ago. The mural has a background of water droplets to signify that water is the medium for all life.
The mural progressed slowly and we got into conflicts with each other as our ideas and artistic sensibilities clashed at many points. Yet this project helped us learn to work as a group and respect each other’s thoughts. Since we were in a boarding school, we could choose to work outside school hours and most of the work was done on weekends. It took a whole term (4 months!) with lots of paint, sweat, and touching up to complete our masterpiece!
The Tree of Life, while simple in conception, speaks to us intuitively, and in it lie buried many deep ideas regarding our origins and connections to all beings in the natural world. It remains the best way to explain how life on this planet developed. We hope this piece encourages you to draw your own version of the Tree of Life.
She crawls in beauty like the night Of cloudy climes and starless skies; And as steals across the bight Salty tears trickle from her eyes Hiding her eggs away from sight She the prowling dog denies.
The fuorescent tide washed the beach clean A darker night was never seen The wind blew soft and then the clouds it tore: And the mechanised boats came trawlingTrawling-trawlingThe mechanised boats came trawling, right up to the shore.
April is the cruellest month, breeding Hatchlings out of dead sand, mixing Instinct and survival, stirring Baby ridleys into juvenile frenzy.
Hatchling to right of them, Hatchling to left of them, Hatchling behind them Fumbl’d and founder’d; Storm’d through the egg shell, Scrambl’d up while others fell, They that had jostled so well Came thro’ the jaws of sand Up from their incubatory spell, All that was left of them, Left of one hundred.
When old age shall this eon waste, Thou shalt remain, in midst of other woe Than ours, a fagship to man, to whom thou sayst, “Beauty is turtle, turtle beauty,” – that is all Ye know on earth, and all ye need to know.
In my parents’ home, there is a large black and white photograph on the wall. Over the last 20 years, there have been many homes, and many walls, but this photograph has been a constant. What is so special about this photo you ask? Well, two things – it has a very special story and it was taken by a very special person.
The photo is taken in the Nilgiri forests of South India and captures in its frame a herd of elephants. At first glance, it seems to be just a nice wildlife photograph of pachyderms in the forest. Now let me share with you the special part and tell you the story, one that my father has narrated to me more times than I can count.
There are a number of elephants – big ones, ones with long trunks, ones with floppy ears, and most importantly, a little one. The elephants are walking through the forest, and have come across a giant log that is blocking their path. Some who are big enough, walk majestically over the log, while others who can’t, take the longer path around. They all continue with their walk. Well, all of them except our little friend, whom I like to call ‘the little elephant who could’. As captured in the photo, he tries and tries to cross the log, with no success. All the elephants wonder why he is not taking the easy way out and plodding around. Finally, after many slips and slides and falls, the little elephant succeeds! He climbs over the log and marches triumphantly on.
Like I said before, this photograph was gifted and this story was told to my father by a very special person. His name was M Krishnan, and he had thousands of stories just like the one of ‘the little elephant who could’, that he had seen with his own eyes. If you asked me who Krishnan was, it would be difficult to answer, because he was so very many things. Krishnan was a photographer, he was an artist, he was a writer, a poet, but most significantly he was a lover of nature. Krishnan was born more than 100 years ago and spent a large part of his life wandering India’s forests, observing the birds and beasts who made their homes there, photographing them, and writing about his times in these forests. Being the lover of words and wildlife that he was, about 25 years ago, Krishnan wrote a collection of poems as birthday presents for his granddaughter Asha.
The years passed and Asha decided she had to share these poems with animal lovers everywhere, and so she published them in a book titled ‘Book of Beasts: An A to Z Rhyming Bestiary’. If you want to learn about animals and birds, or you like to read poems, then the Book of Beasts is meant for you! Through this set of poems, Krishnan spells out the alphabet with an A to Z of wonderful and weird animals and birds.
As we turn through the pages, we see strange faces like the Eland, a kind of African antelope who resembles a cow, and familiar faces, like our favorite big cat – the tiger. Krishnan writes about animals from near and far, there are poems on Dingos from Australia and pythons from India alike. These poems are filled with fun facts, jokes, and Krishnan’s memories. The Book of Beasts is a treasure trove of information, and is so important to those of us who care about the conservation of nature and wildlife. Of the 24 animals and birds that Krishnan has written about in this book, today 11 or almost half of them are threatened or endangered in the wild. If after going through pages with Binturongs and Okapis, if you want to read about still stranger critters, no fear, because the Book of Beasts ends with the mysterious creature XYZ!
I’ll leave you with a little verse inspired by this book.
If you want to meet an independent Kangaroo, Or stumble upon a sullen Gnu, If you wish to learn about the Hispid Hare, Or the Sloth Bear-oh-so rare. Then let your eyes and ears feast, On the fantastic Book of Beasts.
An Initiative by Kalpanadham in association with Gram Vikas
Satyabhama Majhi and her group led a nature exploration workshop that was organized at Vidya Vihar school, in the Ganjam district of Odisha. Ninety-five percent of the children at the school come from tribal communities.
The idea of the workshop was to introduce children and teachers to the concept of creativity through life forms. The screening of “Rivers and Tides”, based on the British artist, sculptor, and photographer—Andy Goldsworthy’s work, created much curiosity amongst the participants about using brightly colored flowers, icicles, leaves, mud, stones, rocks, pinecones, snow, stone, twigs, stems, roots, thorns, etc. The participants worked at five locations.
The Pond
‘The lollipop’, a spiral, which symbolizes desires, aspirations, and dreams. On realization of their dreams, the fulfillment, accomplishment, and happiness provide for their families and community. Amazingly all the children knew how and where to dig the earth without having to be taught!
The River Stream
After much experimentation with sand, berries, and leaves the children still felt something was amiss. There were no flowers! In the heat of Odisha, it was difficult for the delicate flowers to bloom in the summer heat. ‘The Giant Stone Flower’, grown in a pot zigzags its way into a fine full bloom by the flowing river.
Sasmita’s Garden
As the group of children were interacting with the villagers in an “adivaasi” (Tribal) cluster, they met a young girl named Sasmita. Her home was painted with terracotta and cow dung paste. She told the children about her dream of having a garden with flowers and butterflies around her home. A vibrant colorful garden was created, and it will continue to thrive in the relentless summer heat!
Amo Khelo Gharo, Our Play Home
Creating play in the playground— the children found different kinds of wood for the structures. Some thick and strong, others needed to be thin and flexible. ‘The Giant Swing’, ‘The 3D sea-saw’, which moves sideways and round in a circle, and ‘Hula Hoops’. And from everything around them, a play home was created!
Mancha, The Tree House
A mancha is a quiet rest place in the middle of the jungle. Made from dried branches and grass, decorated with origami butterflies, jute-ropering curtains, Mancha is a resting spot. Craftily placed tags tell us about the various species found in surrounding jungle.
Orangutans are one of the five species of great ape. The others are humans, chimpanzees, bonobos, and gorillas. Once widespread throughout the forests of Asia, orangutans are now found on just two islands in Indonesia, Sumatra, and Borneo. Each island has its own unique species. Indigenous people of Indonesia and Malaysia call this ape “Orang Hutan,” which literally translates as “Person of the Forest”.
Humans are closely related to orangutans. We share 96.4% of our DNA with them. We and they evolved from the same early ape ancestor, splitting from them about 13 million years ago. Orangutans can live for around 45 years in the wild.
They don’t live in groups like the other great apes, although the relationship between females and their offspring remains close for years after the young can feed and look after themselves. Females have their first offspring when they are 15-16 years old and will usually have no more than 3 offspring in their lifetimes.
Orangutans eat ripe fruit and find over 90% of their food in the forest canopy. Because their food is often scattered and unpredictable, orangutans spend up to 60% of their time finding food and eating. Orangutans also sleep in the treetops and make new ‘nests’ each night made by bending branches into a platform to support their weight. These nests can be 100 feet above the ground and males can weigh 80 kilos, so the nests need to be strong!
Orangutans are very intelligent and have even been seen making simple tools. Twigs to scratch themselves. Leafy branches to shelter themselves from rain and sun. Branches as tools during insect foraging and honey collection, and for protection against stinging insects. Tools to extract some seeds from their shells that can contain stinging hairs. Leaves as gloves to help them handle spiny fruits and branches, or as seat cushions in spiny trees. Leaves as napkins to wipe their chins. Good table manners are important, even in the forest!
Both species of orangutans are highly endangered. One hundred years ago, there were thought to be 315,000 orangutans in the wild. There are now less than 1/4 of this number left: 14,600 in Sumatra, and less than 54,000 in Borneo. The main causes of their decline are cutting down trees for building and agriculture and poaching for meat and the pet industry. Because females have only three offspring in their lifetimes, orangutan populations grow very slowly and take a long time to recover from habitat disturbance and hunting. This is why the work of organizations like the Sumatran Orangutan Society and the Orangutan Information Centre is so important.
My name is Ricko Jaya and I am 33 years old. I first fell in love with the “People of the Forest”, the meaning of “Orang Hutan” in the Indonesian language, when I was a student. They are truly incredible but also critically endangered, mostly because their home in the Indonesian rainforest is shrinking due to deforestation and large-scale agriculture expansion. Less than 15,000 of them are still roaming freely in the wild forests on the island of Sumatra. So I decided to take action.
Now I am a veterinarian at the Orangutan Information Centre, an organization that cares for injured Sumatran orangutans (Pongo abelii), and works to protect them and their habitat. We intervene when orangutans get too close to villages and could start raiding local farmers’ crops. Follow me today and I will describe to you how we save these beautiful creatures! It is August 21st, and I have received a phone call from a ‘local’ farmer, living 8 hours away from Medan, the capital city of North Sumatra province, where I live.
He and his friends have spotted a large male orangutan stranded in a deforested area, near their fruit orchards. He is malnourished and far from the forest with no high trees around for him to build his nest, in which he sleeps at night. I call my team, and the five of us prepare our equipment: ropes, a strong cage, veterinary supplies, and a landing net. We will drive all night to reach the village, then take a small boat to where we will finally find the orangutan. During an emergency case like this one, we forget to sleep: the safety of the orangutan comes first!
Now begins the most stressful part—catching the orangutan. He is big and scared and tired, so before we can catch him, we must put him to sleep using a tranquilizer dart. This doesn’t hurt the big boy, but it means we can transport him safely. One of the team takes aim with a tranquilizer gun. He fires and the dart hits the back of the orangutan, who will soon start to feel sleepy. Meanwhile, the rest of the team prepares a large landing net. After a few minutes, the male orangutan is falling asleep and begins slowly moving towards the ground. Soon we have him in the net. The most difficult part of the mission is accomplished!
Now, it is a race to get everything done before he starts to wake up. I have 10-15 minutes to conduct a medical check-up, make sure he is not injured, and provide vitamins and food supplements. Then we put him in a cage on the back of our pick-up truck and drive to the national park. The cage is heavy as it must be strong, and the orangutan weighs some 80 kilos. We reach a safe, quiet spot on the edge of the national park and lift the cage down. Most of the team now move back while one of us opens the door. The big orangutan slowly emerges from the cage, and turning towards us the last time, he climbs up into lianas and branches. I am sure he winked at us to say “thank you” before disappearing into the rainforest. Mission accomplished! Good luck big boy!
Special thanks to Fabien Garnier for his help with this article. If you want to know more about the work of the Orangutan Information Centre and would like to support us, you can visit our websites: -https://orangutancentre.org/ -https://www.orangutanssos.org/
Or follow us on Facebook: -https://www.facebook.com/Orangutan-Information-Centre-249175758613943/?fref=ts -https://www.facebook.com/orangutanssos/
You’ve seen Lantana everywhere, yet you probably don’t know very much about it. It has pretty little flowers but has prickly leaves and thorny stems. Gardeners like it. Elephants and deer avoid it. Butterflies and birds love it! Biologists call it an invasive plant. Geetha Ramaswami studies it, and tells us a little more about it.
CC Kids: Tell us about invasive plants and animals. What are they?
Imagine that you are a brightly colored little frog living on an island in the Caribbean. You would be a ‘native’ frog on that island. But suppose you caught the fancy of a visiting pet trader from Sri Lanka, who thought that you would look great in an aquarium. He captures some of you and brings you home. You are now an ‘introduced’ frog in Sri Lanka.
Supposing some of you frogs get washed down the drain when your aquarium in the pet shop is being cleaned. You end up in a pond outside, have lots of baby frogs, and spread to other ponds. There are soon so many of you that you start to compete for food with all the Sri Lankan frogs. You might also eat up all the useful insects. This is when you will be called an invasive frog. How can a little frog become such a nuisance, you ask? Well, it could be because you don’t get eaten by other animals the way local frogs do. Or perhaps you are just better at catching insects than the local frogs. And so one way or another the locals don’t stand a chance against you! People introduce lots of plants and animals to new places. Many of these become invasive. Others don’t, maybe because they didn’t find the right things to eat, or they couldn’t deal with the weather, or weren’t able to spread very far.
CC Kids: Tell us a little more about the invasive plant that you work on.
I work on a thorny, bushy plant called Lantana. In India it is spread over many millions of hectares. You are sure to have seen it – it has clusters of pretty pink flowers and juicy, sweet, black berries. I am interested in all the mischief it brings about in the forests that it invades.
CC Kids: How did Lantana get here? And how did it become invasive?
Well, Lantana was introduced from South America to grow in gardens, because its flowers looked so pretty. It was brought to India by British botanists more than 200 years ago! Lantana was able to invade because it has several ways to ensure that it can get around and grow. Lots of birds and some animals eat the fruit, and poop the seeds out in different places, helping to spread it far and wide! Lantana can also sprout right back if its top is cut off or if it is burnt.
CC Kids: Ok, so we know how Lantana is able to spread. But is it also harmful, like the invasive frog?
Yes, Lantana can change a lot of things. It can grow so fast, that many native plants just cannot compete with it. It can change soil conditions. Lantana also grows in dense thickets and sometimes this can make it difficult for large animals to move around! Also, not many animals can eat lantana leaves without getting really sick, so it is bad for herbivores.
CC Kids: Is Lantana always this harmful or do some animals benefit from it?
Oh yes! Many insects drink nectar from its flowers and in return transfer its pollen to other plants, helping it to produce more fruits and seeds and so, more baby plants. Lantana also has delicious, juicy, sweet berries that lots of birds and some animals like to eat. (Because these birds and animals help spread Lantana seeds, they are also called ‘seed dispersers’.)
CC Kids: Why are you studying Lantana?
I am trying to understand if Lantana steals away seed dispersers from other plants. (Many plants need fruit-eating animals to visit them and spread their seeds.) But Lantana could be more attractive to animals than other plants, thanks to all those juicy berries it produces. This will eventually result in more lantana plants spreading instead of native plants.
CC Kids: Do we have ways to deal with Lantana? It sure seems like quite a problem.
Well, Lantana has been around for a long time now, so there’s probably no getting rid of it completely. But people try. Forest Departments remove Lantana by the thousands every year. It’s a lot of work! And farmers definitely don’t want Lantana on their lands, so they till it. But Lantana’s seeds keep arriving, thanks to its dispersers. Keeping lantana at bay is hard work indeed, but we must definitely strive to control it in areas that are important for people and wild animals.
