The Melagiris are a range of hills on the Eastern Ghats, bound by the river Cauvery on the west. Melagiri contain an expanse of 1295 km2 of dry deciduous and semi-evergreen forests. It is an elephant country and contains two traditional elephant corridors. With the Bannerghatta National Park in the North east and Cauvery Wildlife Sanctuary in the south, the forest range stretches to sanctuaries of BR Hills and Sathyamangala and joins the tiger reserves of Nilgiri Biosphere. As the meeting point of the Western Ghats and Eastern Ghats, these forests form a vital link in the elephant corridors of South India, connecting the Bannerghatta National Park and the River Cauvery. It borders some of the prominent tiger sanctuaries of the south.
Part of Melagiri hills ranges were declared as a Cauvery North Wildlife Sanctuary with effect from 12 March 2014 by the Government of Tamil Nadu as per the Wildlife Protection Act, 1972.
Geography
Melagiri hills lie between the
Dharmapuri and
Krishnagiri Districts of
Tamil Nadu on one side and bordered by
Cauvery on the
Karnataka side. Forest covered hills and valleys are the predominant landscape, with the highest peak of Gutherayan rising up to and lowest . The forests are largely dry deciduous with some stretches of shola forests on the slopes of Gutherayan peak. The Melagiri hills receive a minimum of 700mm and maximum of 900mm of rainfall annually.
Water sources: Cauvery, Dodahalla, Hebbahalla, Chinnar, Ponnaiar, Anaibiddahalla rivers
Flora
The Melagiri hills host mixed vegetation types such as thorn scrub, dry tropical riverine, dry deciduous, mixed deciduous, dry evergreen, and semi evergreen. The forests of the hill harbor many rare plants and trees such as giant Mangifera indica, Garcinia gummi-gutta, wild Balsam, wild jack, etc. Endangered species such as Shorea roxburghii also occur in the division. Significant trees such as old growth Mutti (Terminalia arjuna), Hardwickia binata, Ippe (Madhuca longifolia), Diospyros malabarica etc. occur here.
Fauna
The area is home to the
Asian elephant,
leopard,
dhole,
sloth bear,
marsh crocodile,
golden jackal and prey species such as
chital,
gaur, sambar, grizzled giant squirrel, four-horned antelope and smooth-coated otter. The area is also home to the last few remaining
gray langur in the Hosur Forest Division.
Birds
Grey junglefowl, grey-fronted green pigeon, crested honey buzzard,
Egyptian vulture, lesser fish eagle, brown fish owl, changeable hawk eagle,
Indian peafowl,
osprey and plain flowerpecker inhabit the hills.
Reptiles and amphibians
Indian cobra,
Indian python, Russell's viper,
Dhaman rat snake, keelback water snake and rare snakes like the racer
Coluber bholanathi, the
marsh crocodile, lacertid lizard
Ophisops leschenaultii,
Indian chameleon,
Bengal monitor and the Indian star tortoise occur here. Nearly 20 species of frogs and toads occur here including the rare rock-dwelling toad
Bufo hololius.
[Ganesh, SR A Kalaimani, P Karthik, N Baskaran, R Nagarajan. 2018. Herpetofauna of Southern Eastern Ghats, India – II, From Western Ghats to Coromandel Coast. Asian Journal of Conservation Biology 17(1):28-45]
Conflicts and threats
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Elephant areas are being exploited for bamboo and leased for NTFP collection. Thus, during the migration of elephants, cause contact with human habitations and farms are often damaged. Wild Boars too are a major concern in crop-damage.
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Poaching
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Habitat fragmentation due to settlements
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Fuel wood collection, cattle grazing, livestock penning and illegal felling
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Forest fire
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Increased biotic pressure due to industrial expansion around the division
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Cattle competing with elephants for water and the usage of water by the local livestock dries up the waterholes.
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Lantana, an invasive species with thorny bushes, is not eaten by any of the herbivores and its rapid spread has caused other species of fauna too to vanish. Rapid spread of Chromolaena odorata has severely damaged the bio-diversity, and typical landscapes of this beautiful jungle is making way for this invasive weed.
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Krishnagiri District Administration Website
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IPS news on otters in Krishnagiri
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press clip
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Baskaran, N., K. Senthilkumar & M. Saravanan (2011). A new site record of the Grizzled Giant Squirrel Ratufa macroura (Pennant, 1769) in the Hosur forest division, Eastern Ghats, India and its conservation significance. Journal of Threatened Taxa. 3(6): 1837–1841.
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Chandramouli, S.R., S.R. Ganesh & N. Baskaran (2011). On recent sightings of a little known toad, Duttaphrynus hololius (Günther,1876) with notes on its morphological characterization and ecology. Herpetology Notes 4: 271–274.
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Ganesh S. R., Adimallaiah D., Kailash P. K. (2013). New locality records of Nagarjun Sagar Racer Snake, Coluber bholanathi Sharma, 1976. Herpetotropicos. 9 (1-2): 09-12.
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