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Showing posts with label evergreen forest. Show all posts
Showing posts with label evergreen forest. Show all posts

In the kingdom of the Lion-tailed Macaque

In Valparai the endangered Lion-tailed Macaque inhabits tracts of dense evergreen forest hemmed in by tea plantations. It lives, literally and alarmingly, on the edge



We were driving down from Valparai along one of the remaining patches of tropical evergreen rainforests, soaking up their sounds and feel. We'd had a very good weekend trip, despite not getting to sight anything special besides a couple of Nilgiri Tahr on our way up. The road leading up to Valparai cuts through critical habitat of the Lion-Tailed Macaque and Great Hornbill. We had seen boards screaming "Lion Tailed Macaque are active here. Please drive carefully" and were discussing Kalyan Varma's roadkill photo that had been etched into our minds. 


Ladder-like bridges between canopy trees had been fashioned to ensure that the arboreal primates move freely without having to get down on the road. The extensive clearing of rainforests in Valparai had been started by the British administrators and kept up zealously by their Indian sucessors. Many of those areas are privately owned tea estates now. What remains of rainforests are islets, isolated but protected fiercely by the Nature Conservation Foundation. 


We stopped at a bend on sighting a female scarlet minivet sallying to catch insects. As we were about to get back in the car, Swaheel spotted a primate standing on a near horizontal tree branch, at eye level, about 15 metres away from the road above the downhill slope. "LTM," someone whispered. The animal stared at us for a second or two and walked unhurriedly into the canopy. We thought that was all, happy for the sighting but then we heard movement. Treetops were swinging and black forms moved in and out of branches. And there materialized LTMs of all sizes, and suddenly the forest came alive with whoops and squeaks. We were in the middle of a huge troop of monkeys. They moved down the road. We parked and followed them, careful not to step off the road.
We reached another clearing and were waiting for the monkeys to emerge from the canopy when suddenly Swaheel hissed in my ear: “There, there!" I looked and saw nothing – the canopy was thick with little light penetrating it. He pointed closer and I saw a huge male on all fours on a broken branch. A finger of light illuminated his white mane. Soon, there were macaques everywhere. They were of all ages and sizes -- babies clinging to mothers, juveniles, large males. I spotted another individual barely 3-4 meters from the ground and we spent a satisfying photographic moment.   Vehicles passed us. We had prior warning from Bijoy who had told us the area was very disturbed and we should refrain from attracting a crowd under any circumstances. So, every time we heard a vehicle approach, we pretended to be taking a leak! 


The monkey on the branch was reasonably well camouflaged. We left him alone. Others were trying to cross a gap between trees. What followed was an amazing display. The LTMs on this side of the gorge climbed to the tip of the outcropping branch one at a time. They would shake the branch to make it sway to provide ample thrust for launch. Then the monkey would leap, sailing through the air and latching onto branches on the other side.


They did this one by one -- the first one missed the branch on the other side, and we could hear a crash as it got a foothold further down. Each one of the others made the jump smoothly, including the last one – a mother with a clinging baby.


At this point a minibus from Chalakudy arrived, blaring music, and stopped to partake of the scene. Its occupants pointed at the LTMs and shouted despite our pleas for silence. That was enough irritation for the monkeys, which retreated further into the forest. 


We drove for another 300 meters from that point when we came to a clearing -- and the very verge of the dense evergreen forest. We were in a tea plantation, and it gave us the impression that these threatened primates were living, literally, on the edge. LTMs seldom cross through these plantations, which means they are boxed into these last stretches of evergreen forest with no way out, hoping that whatever little habitat they have would not run out of space, shelter and food.


Text and photos: Sandeep Somasekharan

An afternoon in a Nilgiri shola

The Nilgiri Biosphere Reserve, which includes the Nilgiris district of Tamil Nadu apart from regions in Karnataka and Kerala, has some of the highest ranges in southern India including Dodda Betta, the second highest peak in the Western Ghats. These high ranges are notable for a peculiar kind of forest habitat unique to the southern Western Ghats - the Sholas. The name is derived from the Tamil for grove or forest.


Moist broadleaved forests of stunted evergreen trees, the Sholas occupy the higher altitudes of the southern Western Ghats in the states of Karnataka, Tamil Nadu and Kerala. Tracts of dense, verdant forest, usually clumped around and overgrowing a stream, are separated by gentle undulating meadows of short, mellow-green grasses known to be resistant to fire and frost. Together, meadow and forest comprise the shola-grassland complex. Usually, shola forests are found above 2,000 m (over 6,500 feet) -- an exception being the sholas that occur in BR Hills at 1,600 m (over 5,200 feet) -- and bear a marked semblance to evergreen forests in northeastern India and southeast Asia. The sholas harbour unique biodiversity including endemic species separated from their nearest relatives in southeast Asia.


The Sholas, which function as effective moisture and carbon sinks, remain temperate year-round. Everywhere, this fragile and important ecosystem is threatened by increased fragmentation and encroachment by plantations and commercial afforestation. In the Nilgiris, the major invasive species are Tasmanian Blue Gum (Eucalyptus globulus) and Black Wattle (Acacia mearnsii), as well as monocultures of pine, cypress and silver oak. Shrubs like Scotch Broom (Cytisus scoparius), known locally as Kothagiri Malar, have also invaded the grasslands.


Black-shouldered Kite perched on an invasive Blue Gum

Great Tit in a dense clump of Black Wattle

Scotch Broom or Kothagiri Malar

To appreciate the magnificence of the shola ecosystem, you must enter it and experience it for yourself. Many sholas in the higher reaches of the Nilgiris are quite accessible to naturalists and nature enthusiasts -- as well as poachers, encroachers, wood-cutters, grazers and forest-produce gatherers. The one that I visited was tucked away behind a pine plantation. To enter it I had to step across a stream bordered by a lichen-encrusted tree hirsute with moss. 


At this enchanting portal, I was greeted by a soft, wheezy single-note call, which stopped abruptly at my arrival. Expecting a bird, I waited noiselessly for the source to show itself. Presently, the owner of the voice scurried down the tree, pausing just long enough for me to take a good look at it. It was a beady-eyed rodent, small and smoky grey with ears pressed flat against its head. In my mind, I ruled out the immediate possibilities -- the shape of the tail dictated that it was not a Malabar Spiny Dormouse (Platacanthomys lasiurus). The shape of the muzzle ruled out the Madras Tree Shrew (Anathana ellioti). 


It was a squirrel and markedly different in appearance from the Jungle Striped Squirrel (Funambulus tristriatus), which I have seen in Meghamalai (High Wavys) and Valparai (Anamalais) - that species has a rufous wash to the pelage. I was staring at a creature that was classified as Vulnerable in the IUCN Red List. This was the Dusky Striped Squirrel or the Dusky Forest Squirrel (Funambulus sublineatus), and it was too nimble for me to photograph (ARKive.org helpfully offers a picture we can use). 


ARKive photo - Dusky-striped squirrel
Dusky Forest Squirrel (Funambulus sublineatus) (ARKive.org)

The shola-grassland complex is made up of dense evergreen forests alternating with meadows of grasses resistant to frost and fire



The shola canopy is so dense that sunlight rarely strikes the ground

The occasional rays do penetrate the foliage to nurture new life on the mulchy forest floor

Ferns flourish in the corridors of sunlight

A flower picked from the forest floor

The moist conditions are hospitable to bryophytes such as mosses

It is a world engrossed in the soft babble of water - and here you can relate with poets who believed that brooks chuckle to themselves

Morning frost has glazed the wildflowers with silvery ice, but the birds don't seem to mind

Beside the brook, a dragonfly soaks in the mellow sunshine

Some sholas accommodate a hard woody tree of the high-altitude Western Ghats - the Rhododendron (Rhododendron arboreum nilagiricum) 

January in the Nilgiris sees this tree in bountiful flower and it goes by the moniker Pongal Poo (or New Year Flower)

The canopies are patrolled by troops of Nilgiri Langurs, classified as 'Vulnerable' due to overhunting for their flesh, which is prized by indigenous medicine men

The Nilgiri Laughingthrush (Trochalopteron cachinnans) is classified as 'Endangered' as its natural habitat is fast shrinking

The Black-and-Orange Flycatcher (Ficedula nigrorufa) may be common in this part of the world but its range has declined severely in the last few decades due to the loss of its evergreen forest habitat

The Nilgiri Flycatcher (Eumyias albicaudata) is a common resident of the Sholas but is classified as Near-Threatened due to the decline of the shola habitat

A female Nilgiri Flycatcher
Black Bulbul on the verge of the shola thicket