Western Ghats

Western Ghats
Sahyadri
Western Ghats as seen from Gobichettipalayam, Tamil Nadu
Highest point
Peak Anamudi, Kerala (Eravikulam National Park)
Elevation 2,695 m (8,842 ft)
Coordinates 10°10′N 77°04′E / 10.167°N 77.067°E / 10.167; 77.067Coordinates: 10°10′N 77°04′E / 10.167°N 77.067°E / 10.167; 77.067 
Dimensions
Length 1,600 km (990 mi) N–S
Width 100 km (62 mi) E–W
Area 160,000 km2 (62,000 sq mi)
Geography
Country India
States
Regions Western India and Southern India
Settlements
Biome Tropical and subtropical moist broadleaf forests
Geology
Age of rock Cenozoic
Type of rock Basalt, Laterite and Limestone
UNESCO World Heritage site
Criteria Natural: ix, x
Reference 1342
Inscription 2012 (36th Session)
Area 795,315 ha

Western Ghats also known as Sahyadri (Benevolent Mountains) is a mountain range that runs parallel to the western coast of the Indian peninsula, located entirely in India. It is a UNESCO World Heritage Site and is one of the eight "hottest hot-spots" of biological diversity in the world.[1][2] It is sometimes called the Great Escarpment of India.[3] The range runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain, called Konkan, along the Arabian Sea. A total of thirty-nine properties including national parks, wildlife sanctuaries and reserve forests were designated as world heritage sites - twenty in Kerala, ten in Karnataka, five in Tamil Nadu and four in Maharashtra.[4][5]

The range starts near the Songadh town of Gujarat, south of the Tapti river, and runs approximately 1,600 km (990 mi) through the states of Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu ending at Marunthuvazh Malai, at Swamithope, near the southern tip of India. These hills cover 160,000 km2 (62,000 sq mi) and form the catchment area for complex riverine drainage systems that drain almost 40% of India. The Western Ghats block southwest monsoon winds from reaching the Deccan Plateau.[6] The average elevation is around 1,200 m (3,900 ft).[7]

The area is one of the world's ten "Hottest biodiversity hotspots" and has over 7,402 species of flowering plants, 1,814 species of non-flowering plants, 139 mammal species, 508 bird species, 179 amphibian species, 6,000 insects species and 290 freshwater fish species; it is likely that many undiscovered species live in the Western Ghats. At least 325 globally threatened species occur in the Western Ghats.[8][9][10]

Geology

The Western Ghats are the mountainous faulted and eroded edge of the Deccan Plateau. Geologic evidence indicates that they were formed during the break-up of the supercontinent of Gondwana some 150 million years ago. Geophysical evidence indicates that the west coast of India came into being somewhere around 100 to 80 mya after it broke away from Madagascar. After the break-up, the western coast of India would have appeared as an abrupt cliff some 1,000 m (3,300 ft) in elevation.[11] Basalt is the predominant rock found in the hills reaching a thickness of 3 km (2 mi). Other rock types found are charnockites, granite gneiss, khondalites, leptynites, metamorphic gneisses with detached occurrences of crystalline limestone, iron ore, dolerites and anorthosites. Residual laterite and bauxite ores are also found in the southern hills.

Geography

Topography- Western Ghats (southern part)

The Western Ghats extend from the Satpura Range in the north, stretching from Gujarat to Tamil Nadu. It traverses south through the states of Maharashtra, Goa, Karnataka and Kerala. Major gaps in the range are the Goa Gap, between the Maharashtra and Karnataka sections, and the Palghat Gap on the Tamil Nadu and Kerala border between the Nilgiri Hills and the Anaimalai Hills. The mountains intercept the rain-bearing westerly monsoon winds, and are consequently an area of high rainfall, particularly on their western side. The dense forests also contribute to the precipitation of the area by acting as a substrate for condensation of moist rising orographic winds from the sea, and releasing much of the moisture back into the air via transpiration, allowing it to later condense and fall again as rain.

The northern portion of the narrow coastal plain between the Western Ghats and the Arabian Sea is known as the Konkan, the central portion is called Kanara and the southern portion is called Malabar. The foothill region east of the Ghats in Maharashtra is known as Desh, while the eastern foothills of the central Karnataka state is known as Malenadu.[12] The range is known as Sahyadri in Maharashtra and Karnataka. The Western Ghats meets the Eastern Ghats at Nilgiris in northwestern Tamil Nadu. Nilgiris connects Biligiriranga Hills in southeastern Karnataka with the Shevaroys and Tirumala hills. South of the Palghat Gap are the Anamala Hills, located in western Tamil Nadu and Kerala with smaller ranges further south, including the Cardamom Hills, then Aryankavu pass, Aralvaimozhi pass near Kanyakumari. The range is known as Sahyan or Sahian in Kerala. In the southern part of the range is Anamudi (2,695 metres (8,842 ft)), the highest peak in Western Ghats.

Peaks

Western Ghats has many peaks that rise above 2,000 meters with Anamudi(2,695 m (8,842 ft)) being the highest peak.

Water bodies

View from Varandha Pass Mahad showing the numerous waterfalls

The Western Ghats form one of the four watersheds of India, feeding the perennial rivers of India. The major river systems originating in the Western Ghats are Godavari, Kaveri, Krishna, Thamiraparani and Tungabhadra. The majority of streams draining the Western Ghats join these rivers, and carry large volume of water during the monsoon months. These rivers flow to the east due to the gradient of the land and drain out into the Bay of Bengal. Major tributaries include Kali, Bhadra, Bhavani, Bhima, Malaprabha, Ghataprabha, Hemavathi and Kabini. The Periyar, Bharathappuzha, Pamba, Netravati, Sharavathi, Mandovi and Zuari rivers flow westwards towards the Western Ghats, draining into the Arabian Sea and are fast-moving, owing to the steeper gradient.

Jog Falls in Karnataka, one of the most spectacular waterfalls in India

The rivers have been dammed for hydroelectric and irrigation purposes with major reservoirs spread across the states. The reservoirs are important for their commercial and sport fisheries of rainbow trout, mahseer and common carp.[13] There are about 50 major dams along the length of the Western Ghats.[14] Most notable of these projects are the Koyna in Maharashtra, Linganmakki and Shivanasamudra in Karnataka, Mettur and Pykara in Tamil Nadu, Parambikulam, Malampuzha and Idukki in Kerala[12][15][16]

Banasura Sagar Dam

During the monsoon season, numerous streams fed by incessant rain drain off the mountain sides leading to numerous waterfalls. Major waterfalls include Dudhsagar, Unchalli, Sathodi, Magod, Hogenakkal, Jog, Kunchikal, Shivanasamudra, Meenmutty Falls, Athirappilly Falls. Talakaveri is the source of the river Kaveri and the Kuduremukha range is the source of the Tungabhadra. Western Ghats have several man-made lakes and reservoirs with major lakes at Ooty (34 hectares (84 acres)) in Nilgiris, Kodaikanal (26 hectares (64 acres)) and Berijam in Palani Hills, Pookode lake, Karlad Lake in Wayanad, Vagamon lake, Devikulam (6 hectares (15 acres)) and Letchmi (2 hectares (4.9 acres)) in Idukki, Kerala.

Chembra Peak seen from Pookode Lake

Climate

Annual rainfall along the Western Ghat region

Climate in the Western Ghats varies with altitudinal gradation and distance from the equator. The climate is humid and tropical in the lower reaches tempered by the proximity to the sea. Elevations of 1,500 m (4,921 ft) and above in the north and 2,000 m (6,562 ft) and above in the south have a more temperate climate. Average annual temperature is around 15 °C (59 °F). In some parts frost is common, and temperatures touch the freezing point during the winter months. Mean temperature range from 20 °C (68 °F) in the south to 24 °C (75 °F) in the north. It has also been observed that the coldest periods in the South Western Ghats coincide with the wettest.[17]

During the monsoon season between June and September, the unbroken Western Ghats chain acts as a barrier to the moisture laden clouds. The heavy, eastward-moving rain-bearing clouds are forced to rise and in the process deposit most of their rain on the windward side. Rainfall in this region averages 300 centimetres (120 in) to 400 centimetres (160 in) with localised extremes touching 900 centimetres (350 in). The eastern region of the Western Ghats which lie in the rain shadow, receive far less rainfall of about 100 centimetres (39 in) resulting in an average rainfall of 250 centimetres (98 in) across regions. The total amount of rain does not depend on the spread of the area with areas in northern Maharashtra receiving heavy rainfall followed by long dry spells, while regions closer to the equator receive less annual rainfall and have rain spells lasting several months in a year.[17]

Ecoregions

Sholas, part of the rain forests

The Western Ghats are home to four tropical and subtropical moist broadleaf forest ecoregions – the North Western Ghats moist deciduous forests, North Western Ghats montane rain forests, South Western Ghats moist deciduous forests, and South Western Ghats montane rain forests. The northern portion of the range is generally drier than the southern portion, and at lower elevations makes up the North Western Ghats moist deciduous forests ecoregion, with mostly deciduous forests made up predominantly of teak. Above 1,000 meters elevation are the cooler and wetter North Western Ghats montane rain forests, whose evergreen forests are characterised by trees of family Lauraceae.

The evergreen forests in Wayanad mark the transition zone between the northern and southern ecologic regions of the Western Ghats. The southern ecologic regions are generally wetter and more species-rich. At lower elevations are the South Western Ghats moist deciduous forests, with Cullenia the characteristic tree genus, accompanied by teak, dipterocarps, and other trees. The moist forests transition to the drier South Deccan Plateau dry deciduous forests, which lie in its rain shadow to the east. Above 1,000 meters are the South Western Ghats montane rain forests, also cooler and wetter than the surrounding lowland forests, and dominated by evergreen trees, although some montane grasslands and stunted forests can be found at the highest elevations. The South Western Ghats montane rain forests are the most species-rich ecologic region in peninsular India; eighty percent of the flowering plant species of the entire Western Ghats range are found in this ecologic region.

Biodiversity protection

Dense rain forests cover Western Ghats
Western Ghats is a UNESCO heritage site

Historically the Western Ghats were well-covered in dense forests that provided wild foods and natural habitats for native tribal people. Its inaccessibility made it difficult for people from the plains to cultivate the land and build settlements. After the arrival of the British in the area, large swathes of territory were cleared for agricultural plantations and timber. The forest in the Western Ghats has been severely fragmented due to human activities, especially clear felling for tea, coffee, and teak plantations during 1860 to 1950. Species that are rare, endemic and habitat specialists are more adversely affected and tend to be lost faster than other species. Complex and species rich habitats like the tropical rainforest are much more adversely affected than other habitats.[18]

The area is ecologically sensitive to development and was declared an ecological hotspot in 1988 through the efforts of ecologist Norman Myers. The area covers five percent of India's land with 27% of all species of higher plants in India (4,000 of 15,000 species) are found here and 1,800 of these are endemic to the region. The range is home to at least 84 amphibian species, 16 bird species, seven mammals, and 1,600 flowering plants which are not found elsewhere in the world. The Government of India established many protected areas including 2 biosphere reserves, 13 National parks to restrict human access, several wildlife sanctuaries to protect specific endangered species and many Reserve Forests, which are all managed by the forest departments of their respective state to preserve some of the ecoregions still undeveloped. The Nilgiri Biosphere Reserve comprising 5,500 square kilometres (2,100 sq mi) of the evergreen forests of Nagarahole and deciduous forests of Bandipur in Karnataka, adjoining regions of Wayanad-Mukurthi in Kerala and Mudumalai National Park-Sathyamangalam in Tamil Nadu forms the largest contiguous protected area in the Western Ghats.[19] Silent Valley in Kerala is among the last tracts of virgin tropical evergreen forest in India.[20][21]

In August 2011, the Western Ghats Ecology Expert Panel (WGEEP) designated the entire Western Ghats as an Ecologically Sensitive Area (ESA) and assigned three levels of Ecological Sensitivity to its different regions.[22] The Western Ghats Ecology Expert Panel, headed by ecologist Madhav Gadgil, was a committee appointed by the Union Ministry of Environment and Forests to assess the biodiversity and environmental issues of the Western Ghats.[23] Gadgil Committee and its successor Kasturirangan Committee recommended suggestions to protect the Western Ghats. Gadgil report was criticized as being too environment-friendly and Kasturirangan report was labelled as being anti-environmental.[24][25][26]

In 2006, India applied to the UNESCO MAB for the Western Ghats to be listed as a protected World Heritage Site.[27] In 2012, the following places are declared as World Heritage Sites:[28][29]

Fauna

The Western Ghats are home to thousands of animal species including at least 325 globally threatened species.[30]

Mammals

There are at least 139 mammal species. Of the 16 endemic mammals, 13 are threatened and amongst the 32 threatened species include the critically endangered Malabar large-spotted civet, the endangered lion-tailed macaque, Nilgiri tahr, Bengal tiger and Indian elephants, the vulnerable Indian leopard, Nilgiri langur and gaur.[31][32][33]

These hill ranges serve as important wildlife corridors and forms an important part of Project Elephant and Project Tiger reserves. The largest population of tigers outside the Sundarbans is in the Western Ghats where there are seven populations with an estimated population size of 336 to 487 individuals occupying 21,435 km2 (8,276 sq mi) forest in three major landscape units spread across Karnataka, Tamil Nadu and Kerala.[34] The Western Ghats eco-region has the largest Indian elephant population in the wild with an estimated 11,000 individuals across eight distinct populations.[35][36] The endemic Nilgiri tahr which was on the brink of extinction has recovered and has an estimated 3,122 individuals in the wild.[37] The Critically Endangered endemic Malabar large-spotted civet is estimated to number fewer than 250 mature individuals, with no sub-population greater than 50 individuals.[38] About 3500 lion-tailed macaques live scattered over several areas in the Western Ghats.[39]

Reptiles

The major population of snake family Uropeltidae of the reptile class is restricted to the region.[40] Several endemic reptile genera occur here, including the Kerala cane turtle Vijayachelys silvatica, lizards like Salea, Ristella, Kaestlea, snakes like Melanophidium, Plectrurus, Teretrurus, Platyplectrurus, Xylophis, Rhabdops and so on. Species level endemism is much higher and is common to almost all genera present here. Some enigmatic endemic reptiles include the venomous snakes such as Striped coral snake, Malabar pit viper, Large-scaled pitviper and Horseshoe pitviper. The region has significant population of vulnerable Mugger crocodiles.[41]

Amphibians

The amphibians of the Western Ghats are diverse and unique, with more than 80% of the 179 amphibian species being endemic to the rainforests of the mountains.[42] The endangered purple frog was discovered in 2003.[43] Several families of frogs namely of the genera Micrixalus, Indirana, Nyctibatrachus are endemic to this region. Endemic genera include the toads Pedostibes, Ghatophryne, Xanthophryne and arboreal frogs such as Ghatixalus, Mercurana and Beddomixalus; microhylids like Melanobatrachus. Dozens of new frogs species were described from the Western Ghats recently.[44] The region is also home to many caecilian species.

Fish

As of 2004, 288 freshwater fish species are listed for the Western Ghats, including 35 also known from brackish or marine water.[10] Several new species have been described from the region since then (e.g., Dario urops and S. sharavathiensis).[45][46] There are 118 endemic species, including 12 genera entirely restricted to the Western Ghats (Betadevario, Dayella, Horabagrus, Horalabiosa, Hypselobarbus, Indoreonectes, Lepidopygopsis, Longischistura, Mesonoemacheilus, Parapsilorhynchus, Rohtee and Travancoria).[47]

There is a higher fish richness in the southern part of the Western Ghats than in the northern,[47] and the highest is in the Chalakudy River, which alone holds 98 species.[48] Other rivers with high species numbers include the Periyar, Bharatapuzha, Pamba and Chaliyar, as well as upstream tributaries of the Kaveri, Pambar, Bhavani and Krishna rivers.[47] The most species rich families are the Cyprinids (72 species), hillstream loaches (34 species; including stone loaches, now regarded a separate family), Bagrid catfishes (19 species) and Sisorid catfishes (12 species).[10][47][48] The region is home to several brilliantly colored ornamental fishes like Denison's (or red line torpedo) barb,[49] several species of Dawkinsia barbs, zebra loach, Horabagrus catfish, dwarf pufferfish and dwarf Malabar pufferfish.[50] The rivers are also home to Osteobrama bakeri, and larger species such as the Malabar snakehead and Malabar mahseer.[51][52] A few are adapted to an underground life, including some Monopterus swampeels,[53] and the catfish Horaglanis and Kryptoglanis.[54]

According to the IUCN, 97 freshwater fish species from the Western Ghats were considered threatened in 2011, including 12 critically endangered, 54 endangered and 31 vulnerable.[47] All but one (Tor khudree) of these are endemic to the Western Ghats. An additional 26 species from the region are considered data deficient (their status is unclear at present). The primary threats are from habitat loss, but also from overexploitation and introduced species.[47]

Birds

There are at least 508 bird species. Most of Karnataka's five hundred species of birds are from the Western Ghats region.[55][56] There are at least 16 species of birds endemic to the Western Ghats including the endangered rufous-breasted laughingthrush, the vulnerable Nilgiri wood-pigeon, white-bellied shortwing and broad-tailed grassbird, the near threatened grey-breasted laughingthrush, black-and-rufous flycatcher, Nilgiri flycatcher, and Nilgiri pipit, and the least concern Malabar (blue-winged) parakeet, Malabar grey hornbill, white-bellied treepie, grey-headed bulbul, rufous babbler, Wynaad laughingthrush, white-bellied blue-flycatcher and the crimson-backed sunbird.[57]

Insects

There are roughly 6,000 insect species.[58] Of 334 Western Ghats butterfly species, 316 species have been reported from the Nilgiri Biosphere Reserve.[59] The Western Ghats is home to 174 species of odonates (107 dragonflies and 67 damselflies), including 69 endemics.[47] Most of the endemic odonate are closely associated with rivers and streams, while the non-endemics typically are generalists.[47] There are several species of leeches found all along the Western Ghats.[60]

Molluscs

Seasonal rainfall patterns of the Western Ghats necessitate a period of dormancy for its land snails, resulting in their high abundance and diversity including at least 258 species of gastropods from 57 genera and 24 families.[61] A total of 77 species of freshwater molluscs (52 gastropods and 25 bivalves) have been recorded from the Western Ghats, but the actual number is likely higher.[47] This include 28 endemics. Among the threatened freshwater molluscs are the mussels Pseudomulleria dalyi, which is a Gondwanan relict, and the snail Cremnoconchus, which is restricted to the spray zone of waterfalls.[47] According to the IUCN, 4 species of freshwater molluscs are considered endangered and 3 are vulnerable. An additional 19 species are considered data deficient.[47]

Flora

Of the 7,402 species of flowering plants occurring in the Western Ghats, 5,588 species are native or indigenous and 376 are exotics naturalised and 1,438 species are cultivated or planted as ornamentals. Among the indigenous species, 2,253 species are endemic to India and of them, 1,273 species are exclusively confined to the Western Ghats. Apart from 593 confirmed subspecies and varieties; 66 species, 5 subspecies and 14 varieties of doubtful occurrence are also reported and therefore amounting 8,080 taxa of flowering plants.[62]

See also

Western Ghats portal

Notes

  1. ↑ "Biodiversity hotspots for conservation priorities". Nature. 403. Retrieved 16 Nov 2013.
  2. ↑ "UN designates Western Ghats as world heritage site". Times of India. 2 July 2012. Retrieved 2 July 2012.
  3. ↑ Migon, Piotr (12 May 2010). Geomorphological Landscapes of the World. Springer. p. 257. ISBN 978-90-481-3054-2.
  4. ↑ "Western Ghats". UNESCO. Retrieved 3 January 2013.
  5. ↑ Lewis, Clara (3 July 2012). "39 sites in Western Ghats get world heritage status". Times of India. Retrieved 21 February 2013.
  6. ↑ Vijayan, V.S. "Research needs for the Western Ghats" (PDF). Ashoka Trust for Research in Ecology and the Environment (ATREE). Archived from the original (PDF) on 11 May 2013. Retrieved 21 June 2007.
  7. ↑ "The Peninsula". Asia-Pacific Mountain Network. Archived from the original on 12 August 2007. Retrieved 19 March 2007.
  8. ↑ Nayar, T.S.; Rasiya Beegam, A; Sibi, M. (2014). Flowering Plants of the Western Ghats, India (2 Volumes). Thiruvananthapuram, India: Jawaharlal Nehru Tropical Botanic Garden and Research Institute. p.1700.
  9. ↑ Myers, N.; Mittermeier, R.A.; Mittermeier, C.G.; Fonseca, G.A.B.Da; Kent, J. (2000). "Biodiversity Hotspots for Conservation Priorities". Nature. 403: 853–858. doi:10.1038/35002501. PMID 10706275.
  10. 1 2 3 Dahanukar, N.; Raut, R.; Bhat, A. (2004). "Distribution, endemism and threat status of freshwater fishes in the Western Ghats of India". Journal of Biogeography. 31 (1): 123–136. doi:10.1046/j.0305-0270.2003.01016.x.
  11. ↑ Barron, E.J.; Harrison, C.G.A.; Sloan, J.L. II; Hay, W.W. (1981). "Paleogeography, 180 million years ago to the present". Eclogae geologicae Helvetiae. 74 (2): 443–470.
  12. 1 2 "The Geography of India". all-about-india.com. Retrieved 19 November 2010.
  13. ↑ Sehgal, K. L. "Coldwater fish and fisheries in the Western Ghats, India". FAO. Retrieved 22 September 2008.
  14. ↑ "Indian Dams by River and State". Rain water harvesting. Retrieved 19 March 2007.
  15. ↑ Menon, Rajesh (3 October 2005). "Tremors may rock Koyna for another two decade". Indian Express. Archived from the original on 17 November 2007. Retrieved 19 March 2007.
  16. ↑ Samani, R.L.; Ayhad, A.P. (2002). "Siltation of Reservoirs-Koyna Hydroelectric Project-A Case Study". In S. P. Kaushish; B. S. K. Naidu. Silting Problems in Hydropower Plants. Bangkok: Central Board of Irrigation and Power. ISBN 90-5809-238-0.
  17. 1 2 Ranjit Daniels, R.J. "Biodiversity of the Western Ghats – An Overview". Wildlife Institute of India. Archived from the original on 28 February 2007. Retrieved 19 March 2007.
  18. ↑ Kumar, Ajith. "Impact of rainforest fragmentation on small mammals and herpetofauna in the Western Ghats, South India" (PDF). Salim Centre for Ornithology and Natural History, Coimbatore. Archived from the original (PDF) on 19 December 2008.
  19. ↑ "The Nilgiri Bio-sphere Reserve". Archived from the original on 28 September 2006.
  20. ↑ Ramesh (21 November 2009). "No clearance for mining, hydel projects that destroy Western Ghat". The Hindu. Palakkad: Kasturi & Sons Ltd. Retrieved 29 December 2009.
  21. ↑ staff (4 August 2009). "Gundia project has not got Centre's nod". The Hindu. Chennai, India: Kasturi & Sons Ltd. Retrieved 29 December 2009.
  22. ↑ Madhav Gadgil (2012-08-31). "Report of the Western Ghats Ecology Expert Panel" (PDF). westernghatindia.org. Ministry of Environment and Forests, Government of India. Part 1: summary XIX. Retrieved 4 May 2012.
  23. ↑ "Vested interests in Western Ghats". Deccan Herald. Retrieved 5 May 2016.
  24. ↑ "Report is anti environmental". The Hindu. Retrieved 14 May 2016.
  25. ↑ "Disaster for Western Ghats".
  26. ↑ "Paradise lost". Hindustan Times. Retrieved 14 May 2016.
  27. ↑ "World Heritage sites, Tentative lists, Western Ghats sub cluster". UNESCO. 2007. Retrieved 30 March 2007.
  28. ↑ "UNESCO heritage sites". UNESCO. Retrieved 30 March 2007.
  29. ↑ "UN designates Western Ghats as world heritage site". Times Of India. 2 July 2012. Retrieved 28 July 2013.
  30. ↑ Nameer, P.O.; Molur, Sanjay; Walker, Sally (November 2001). "Mammals of the Western Ghats: A Simplistic Overview" (PDF). Zoos' Print Journal. 16 (11): 629–639. doi:10.11609/jott.zpj.16.11.629-39. Retrieved 7 March 2012.
  31. ↑ Participants of CBSG CAMP workshop: Status of South Asian Primates (March 2002) (2004). "Macaca silenus". IUCN Red List of Threatened Species. Version 2006. International Union for Conservation of Nature. Retrieved 9 May 2006. Database entry includes justification for why this species is endangered
  32. ↑ Mewa, Singh; Werner, Kaumanns (2005). "Behavioural studies: A necessity for wildlife management" (PDF). Current Science. 89 (7): 1233. Archived from the original (PDF) on 13 January 2007.
  33. ↑ Malviya, M.; Srivastav, A.; Nigam, P.; Tyagi, P.C. (2011). "Indian National Studbook of Nilgiri Langur (Trachypithecus johnii)" (PDF). Wildlife Institute of India, Dehradun and Central Zoo Authority, New Delhi.
  34. ↑ Jhala, Y. V.; Gopal, R.; Qureshi, Q (2008). "Status of the Tigers, Co-predators, and Prey in India" (PDF). TR 08/001. National Tiger Conservation Authority, Govt. of India, New Delhi; Wildlife Institute of India, Dehradun. Archived from the original (PDF) on 2 June 2013.
  35. ↑ "Elephant Reserves". ENVIS Centre on Wildlife & Protected Areas. Retrieved 30 January 2016.
  36. ↑ "Census population 2005" (PDF). Note on Project Elephant. Ministry of Environment and Forests. 2007. Archived from the original (PDF) on 12 March 2012. Retrieved 30 January 2016.
  37. ↑ "Nilgiri tahr population over 3,000: WWF-India". The Hindu. 3 October 2015. Retrieved 1 May 2016.
  38. ↑ Jennings, A.; Veron, G. & Helgen, K. (2008). "Viverra civettina". IUCN Red List of Threatened Species. Version 2012.2. International Union for Conservation of Nature.
  39. ↑ Molur S; D Brandon-Jones; W Dittus; A. Eudey; A. Kumar; M. Singh; M.M. Feeroz; M. Chalise; P. Priya & S. Walker (2003). "Status of South Asian Primates: Conservation Assessment and Management Plan (C.A.M.P.) Workshop Report, 2003". Zoo Outreach Organization/CBSG-South Asia, Coimbatore.
  40. ↑ Greene, H. W. & R. W. Mcdiarmid (2005). Wallace and Savage: heroes, theories and venomous snake mimicry, Ecology and Evolution in the Tropics, a Herpetological Perspective. Chicago University of Chicago Press. pp. 190–208.
  41. ↑ Harry V., Andrews, Status and Distribution of the Mugger Crocodile in Tamil Nadu, WII, archived from the original on 20 December 2004
  42. ↑ Vasudevan Karthikeyan, A Report on the Survey of Rainforest Fragments in the Western Ghats for Amphibian Diversity, archived from the original on 15 December 2005
  43. ↑ Radhakrishnan, C; K.C. Gopi & K.P. Dinesh (2007). "Zoogeography of Nasikabatrachus sahyadrensis Biju and Bossuyt (Amphibia: Anura; Nasikabatrachidae) in the Western Ghats, India". Records of the Zoological Survey of India. 107: 115–121.
  44. ↑ "An evaluation of the endemism of the amphibian assemblages from the Western Ghats using molecular techniques" (PDF). WII. Archived from the original (PDF) on 19 December 2008.
  45. ↑ Britz; Ali; Philip (2012). "Dariourops, a new species of badid fish from the Western Ghats, southern India". Zootaxa. 3348: 63–68.
  46. ↑ Sreekantha; Gururaja; Remadevi; Indra; Ramachandra (2006). "Two new species of the genus Schistura McClell and (Cypriniformes: Balitoridae) from western Ghats, India". Zoos' Print Journal. 21 (4): 2211–2216. doi:10.11609/jott.zpj.1386.2211-6.
  47. 1 2 3 4 5 6 7 8 9 10 11 Molur, M.; Smith, K.G.; Daniel, B.A. & Darwall, W.R.T. (2011). The status and distribution of freshwater biodiversity in the Western Ghats, India (PDF). IUCN Red List of Threatened Species - Regional Assessment. ISBN 978-2-8317-1381-6.
  48. 1 2 Raghavan; Prasad; Ali; Pereira (2008). "Fish fauna of Chalakudy River, part of Western Ghats biodiversity hotspot, Kerala, India: patterns of distribution, threats and conservation needs". Biodiversity and Conservation. 17 (13): 3119–3131. doi:10.1007/s10531-007-9293-0.
  49. ↑ "?". geocieties.com.
  50. ↑ "Zoologica" (PDF). Archived from the original (PDF) on 16 July 2004. Retrieved 18 December 2006.
  51. ↑ Benziger; Philip; Raghavan; Ali; Sukumaran; Tharian; Dahanukar; Baby; Peter; Devi; Radhakrishnan; Haniffa; Britz; Antunes (2011). "Unraveling a 146 Years Old Taxonomic Puzzle: Validation of Malabar Snakehead, Species-Status and Its Relevance for Channid Systematics and Evolution". PLoS ONE. 6 (6): e21272. doi:10.1371/journal.pone.0021272. PMC 3123301. PMID 21731689.
  52. ↑ Silas; et al. (2005). "Indian Journal of Fisheries". 52 (2): 125–140.
  53. ↑ Gobi, K.C. (2002). "A new synbranchid fish, Monopterus digressus from Kersla, Peninsular India". Rec. zool. Surv. India. 100 (1–2): 137–143.
  54. ↑ Vincent, Moncey; Thomas, John (April 2011). "Kryptoglanis shajii, an enigmatic subterranean-spring catfish (Siluriformes, Incertae sedis) from Kerala, India". Ichthyological Research. 58 (2): 161–165. doi:10.1007/s10228-011-0206-6. (Subscription required (help)).
  55. ↑ "Karnataka birds". karnatakabirds.net. Archived from the original on 29 April 2006.
  56. ↑ "Karnataka forest department (forests at a glance – Bio-diversity". Archived from the original on 27 September 2007.
  57. ↑ "Restricted-range species". BirdLife EBA Factsheet 12 : Western Ghats. BirdLife International. 1998. Retrieved 3 December 2009.
  58. ↑ Mathew George & Binoy C.F., An Overview of Insect Diversity of Western Ghats with Special Reference to Kerala State, WII, archived from the original on 16 March 2009, retrieved 24 July 2007
  59. ↑ George Mathew & M. Mahesh Kumar, State of the Art Knowledge on the Butterflies of Nilgiri Biosphere Reserve, WII, archived from the original on 8 January 2009
  60. ↑ Chandra, Mahesh (1976). "Collection of leeches from Maharashtra" (PDF). Zoological Survey of India. 69 : 325-328. Rec. Zool. Surv. India. Retrieved October 5, 2016.
  61. ↑ Madhyastha N. A.; Rajendra; Mavinkurve G. & Shanbhag Sandhya P., Land Snails of Western Ghats, WII, archived from the original on 17 July 2009
  62. ↑ Nayar, T.S., Rasiya Beegam A., and M. Sibi. (2014). Flowering Plants of the Western Ghats, India (2 Volumes), Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram, Kerala, India. p.1700

References

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.