Western Ghats

The Western Ghats, also known as the Sahyadri mountain range, is a mountain range that covers an area of 160,000 km2 (62,000 sq mi) in a stretch of 1,600 km (990 mi) parallel to the western coast of the Indian peninsula, traversing the states of Gujarat, Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu.[1] It is a UNESCO World Heritage Site[2] and is one of the 36 biodiversity hotspots in the world.[3] It is sometimes called the Great Escarpment of India.[4] It contains a very large proportion of the country's flora and fauna, many of which are endemic to this region.[5] The Western Ghats are older than the Himalayas. They influence Indian monsoon weather patterns by intercepting the rain-laden monsoon winds that sweep in from the south-west during late summer.[1] The range runs north to south along the western edge of the Deccan Plateau and separates the plateau from a narrow coastal plain called the Western Coastal Plains along the Arabian Sea. A total of 39 areas in the Western Ghats, including national parks, wildlife sanctuaries and reserve forests, were designated as world heritage sites in 2012 – twenty in Kerala, ten in Karnataka, six in Tamil Nadu and four in Maharashtra.[6][7]

Western Ghats
Pashchima Ghats
Wayanad district in Western Ghats
Highest point
PeakAnamudi, Eravikulam National Park
Elevation2,695 m (8,842 ft)
Coordinates10°10′11″N 77°03′40″E
Dimensions
Length1,600 km (990 mi) N–S
Width100 km (62 mi) E–W
Area160,000 km2 (62,000 sq mi)
Geography
The Western Ghats lie roughly parallel to the west coast of India.
CountryIndia
StatesGujarat, Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu
RegionWestern and Southern India
Settlements
List
BiomeTropical rainforests and Marsh
Geology
Age of rockCenozoic
Type of rockBasalt, Laterite and Limestone
CriteriaNatural: ix, x
Reference1342
Inscription2012 (36th Session)
Area795,315 ha

The range starts near south of the Tapti river and runs approximately 1,600 km (990 mi) through the states of Gujarat, Maharashtra, Karnataka, Goa, Kerala and Tamil Nadu ending at Marunthuvazh Malai, Swamithoppe, near the southern tip the 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 the southwest monsoon winds from reaching the Deccan Plateau.[8] The average elevation is around 1,200 m (3,900 ft).[9]

The area is one of the world's ten "hottest biodiversity hotspots." It has over 7,402 species of flowering plants, 1,814 species of non-flowering plants, 139 mammal species, 508 bird species, 227 reptile species, 179 amphibian species, 290 freshwater fish species, and 6,000 insect species. It is likely that many undiscovered species live in the Western Ghats. At least 325 globally threatened species occur in the Western Ghats.[10][11][12]

Etymology

The word Ghat is explained by numerous Dravidian etymons such as the Kannada gaati and ghatta (mountain range), Tamil gattu (hill and hill forest), Tulu gatta (hill or hillside), and ghattam in Malayalam (mountainous way, riverside and hairpin bends).[13]

Ghat, a term used in the Indian subcontinent, depending on the context could either refer to a range of stepped-hill such as the Eastern Ghats and Western Ghats; or the series of steps leading down to a body of water or wharf, such bathing or cremation place along the banks of a river or pond, Ghats in Varanasi, Dhoby Ghaut or Aapravasi Ghat.[14][15] Roads passing through ghats are called Ghat Roads.

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.[16] 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)
Western Ghats form a continuous chain of mountains along the West coast of India

The Western Ghats extend from the Satpura Range in the north, stretching from Gujarat to Tamil Nadu.[17] 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 Mountains 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.[18] The range is known as Sahyadri in Maharashtra and Karnataka. The Western Ghats meet the Eastern Ghats at the Nilgiri mountains in northwestern Tamil Nadu. The Nilgiris connect the 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, and 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 m (8,842 ft)), the highest peak in the Western Ghats. Ooty is called the Queen of the Western Ghats.

Peaks
Main article: List of peaks in the Western Ghats

The Western Ghats have many peaks that rise above 2,000 m (6,600 ft), with Anamudi (2,695 m (8,842 ft)) being the highest peak.[19]

Water bodies

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 the Godavari, Kaveri, Krishna, Thamiraparani and Tungabhadra rivers. The majority of streams draining the Western Ghats join these rivers, and carry a 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 the Bhadra, Bhavani, Bhima, Malaprabha, Ghataprabha, Hemavathi and Kabini rivers. The Periyar, Bharathappuzha, Pamba, Netravati, Sharavathi, Kali, Mandovi and Zuari rivers flow westwards towards the Western Ghats, draining into the Arabian Sea, and are fast-moving, owing to the steeper gradient. The rivers have been dammed for hydroelectric and irrigation purposes with major reservoirs spread across the states. The Western Ghats account for 80% of India's hydropower generation. The reservoirs are important for their commercial and sport fisheries of rainbow trout, mahseer and common carp.[20] There are about 50 major dams along the length of the Western Ghats.[21] Most notable of these projects are the Koyna in Maharashtra, Linganmakki and krishna Raja Sagara in Karnataka, Mettur and Pykara in Tamil Nadu, Parambikulam, Malampuzha and Idukki in Kerala.[18][22][23] 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, Adyanpara, Athirappilly, and Coutrallam. Talakaveri is the source of the river Kaveri and the Kuduremukha range is the source of the Tungabhadra. The Western Ghats have several human-made lakes and reservoirs with major lakes at Ooty (34 ha (84 acres)) in Nilgiris, Kodaikanal (26 ha (64 acres)) and Berijam in Palani Hills, Pookode lake, Karlad Lake in Wayanad, Vagamon lake, Devikulam (6 ha (15 acres)) and Letchmi (2 ha (4.9 acres)) in Idukki, Kerala.

Climate
Munnar, a popular hillstation in the Western Ghats
Spring blossom in Ooty, the Queen of the Western ghats

The area including Agumbe, Hulikal and Amagaon in Karnataka, Mahabaleshwar and Tamhini in Maharashtra are often referred to as the "Cherrapunji of southwest India" or the "rain capital of southwest India". Kollur in Udupi district, Kokkali and Nilkund in Sirsi, Samse in Mudigere of Karnataka, and Neriamangalam in the Ernakulam district of Kerala are the wettest places in the Western Ghats. Heavy precipitation does occur in the surrounding regions due to the long continuity of the mountains without passes and gaps. Changes in the direction and pace of the wind do affect the average rainfall and the wettest places might vary. However, Maharashtra and the northern part of Western Ghats in Karnataka on average receive heavier rainfall than Kerala and the southern part of Western Ghats in Karnataka.

The 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. The average annual temperature is around 15 °C (59 °F). In some parts frost is common, and temperatures reach the freezing point during the winter months. Mean temperatures 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.[24]

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 cm (120 in) to 400 cm (160 in) with localised extremes reaching 900 cm (350 in). The eastern regions of the Western Ghats, which lie in the rain shadow, receive far less rainfall (about 100 cm (39 in)), resulting in an average rainfall of 250 cm (98 in) across all regions. The total amount of rain does not depend on the spread of the area; areas in northern Maharashtra receive heavy rainfall followed by long dry spells, while regions closer to the equator receive lower annual rainfall and have rain spells lasting several months in a year.[24]

Rainfall
Chorla Ghat on the Goa-Karnataka border, during late monsoon

The Karnataka region on average receives heavier rainfall than the Kerala, Maharashtra and Goa regions. Meanwhile, the Ghats in Karnataka have fewer passes and gaps and therefore the western slopes of Karnataka receive heavy rainfall, over 400 cm more than other regional parts of the Western Ghats.

Annual rainfall along the Western Ghat region

Some of the wettest places in the Western Ghats are:

Location Region Mean annual rainfall[25]
Agumbe Thirthahalli, Karnataka 7,624 mm (300.2 in)
Amboli Sindhudurg district, Maharashtra 7,000 mm (280 in)
Hulikal Hosanagara, Karnataka 5,316 mm (209.3 in)
Amagaon Khanapur, Karnataka 4,089 mm (161.0 in)
Kakkalli Sirsi, Uttara Kannada district, Karnataka 4,921 mm (193.7 in)
Nilkund Sirsi, Uttara Kannada district, Karnataka 4,369 mm (172.0 in)
Mahabaleshwar Satara district, Maharashtra 5,761 mm (226.8 in)
Devimane Sirsi, Uttara Kannada district, Karnataka 3,981 mm (156.7 in)
Surli Hosanagara, Karnataka 4,335 mm (170.7 in)
Lonavla Pune district, Maharashtra 4,073 mm (160.4 in)
Charmadi Mudigere, Karnataka 4,131 mm (162.6 in)
Samse Mudigere, Karnataka 3,914 mm (154.1 in)
Kollur Udupi district, Karnataka 4,992 mm (196.5 in)
Makkiyad Wayanad district, Kerala 3,714 mm (146.2 in)
Kudremukh Chikmagalur district, Karnataka 4,158 mm (163.7 in)
Rajamala Idukki, Kerala 4,785 mm (188.4 in)
Igatpuri Nashik, Maharashtra 3,498 mm (137.7 in)[26]
Nyamakad Idukki, Kerala 3,007 mm (118.4 in)
Sholayar Coimbatore, Tamil Nadu 4,000 mm (160 in)
Vythiri Wayanad district, Kerala 4,000 mm (160 in)
Pookode Wayanad district, Kerala 3,957 mm (155.8 in)
Dhamanohol Mulshi taluka, Maharashtra 6,255 mm (246.3 in)
Mulshi Pune district, Maharashtra 5,100 mm (200 in)
Tamhini Ghat Mulshi taluka, Maharashtra 5,255 mm (206.9 in)
Chinnakallar Coimbatore, Tamil Nadu 3,947 mm (155.4 in)
Castle Rock Uttara Kannada district, Karnataka 5,132 mm (202.0 in)

Ecoregions
Sholas, part of the rainforests

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 the family Lauraceae.

The evergreen forests in Wayanad mark the transition zone between the northern and southern ecoregions of the Western Ghats. The southern ecoregions 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 ecoregion in peninsular India; eighty percent of the flowering plant species of the entire Western Ghats range are found in this ecoregion.

Biodiversity protection
Dense rainforests cover the Western Ghats.

Historically the Western Ghats were 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 establishment of British colonial rule in the region, 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[27] from 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.[28]

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; 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 has 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 km2 (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.[29] Silent Valley in Kerala is among the last tracts of virgin tropical evergreen forest in India.[30][31]

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.[32] The panel, headed by ecologist Madhav Gadgil, was appointed by the Union Ministry of Environment and Forests to assess the biodiversity and environmental issues of the Western Ghats.[33] The Gadgil Committee and its successor, the Kasturirangan Committee, recommended suggestions to protect the Western Ghats. The Gadgil report was criticised as being too environment-friendly and the Kasturirangan report was labelled as being anti-environmental.[34][35][36]

The Western Ghats are a UNESCO heritage site.

In 2006, India applied to the UNESCO Man and the Biosphere Programme (MAB) for the Western Ghats to be listed as a protected World Heritage Site.[37] In 2012, the following places were declared as World Heritage Sites:[38][39]

Tiger in Mudumalai National Park, Tamil Nadu

Fauna

The Western Ghats are home to thousands of animal species including at least 325 globally threatened species.[40]

Mammals
Nilgiri tahr, female

There are at least 139 mammal species. Of the 16 endemic mammals, 13 are threatened. Among the 32 threatened species are the tiger, leopard, lion-tailed macaque, Nilgiri tahr, Asian elephant, Nilgiri langur and gaur.[41][42][43] The endemic Malabar large-spotted civet is estimated to number fewer than 250 mature individuals, with no sub-population greater than 50 individuals.[44] The Nilgiri marten, brown palm civet, stripe-necked mongoose, Indian brown mongoose, small Indian civet and leopard cat are the small carnivores living in the forests of the Western Ghats.[45]

The hill ranges constitute important wildlife corridors and form an important part of Project Elephant and Project Tiger reserves. The largest tiger population lives in the Western Ghats, where there are seven populations with an estimated population size of 1200 individuals occupying 21,435 km2 (8,276 sq mi) of forest in three major landscape units spread across Karnataka, Tamil Nadu and Kerala.[46] The Western Ghats ecoregion has the largest Indian elephant population in the wild with an estimated 11,000 individuals across eight distinct populations.[47][48] The endemic Nilgiri tahr, which was on the brink of extinction, has recovered and has an estimated 3,122 individuals in the wild.[49] About 3500 lion-tailed macaques live scattered over several areas in the Western Ghats.[50]

Reptiles

At least 227 species of reptiles are found in the Western Ghats.[51] The major population of the snake family Uropeltidae is restricted to the region.[52] Several endemic reptile genera and species occur here, including the cane turtle Vijayachelys silvatica, lizards like Salea, Ristella, Kaestlea, and snakes such as Melanophidium, Plectrurus, Teretrurus, Platyplectrurus, Xylophis, and Rhabdops. Species-level endemism is much higher and is common to almost all genera present here. Some enigmatic endemic reptiles include venomous snakes such as the king cobra, the striped coral snake, the Malabar pit viper, the large-scaled pitviper and the horseshoe pitviper. The region has a significant population of the mugger crocodile.[53]

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.[54] The purple frog was discovered in 2003.[55] Several species of frogs, namely of the genera Micrixalus, Indirana, and Nyctibatrachus, are endemic to this region. Endemic genera include the toads Pedostibes, Ghatophryne, and Xanthophryne; arboreal frogs such as Ghatixalus, Mercurana, and Beddomixalus; and microhylids like Melanobatrachus. New frog species were described from the Western Ghats in 2005, and more recently a new species, monotypic in its genus Mysticellus, was discovered.[56][57] The region is also home to many caecilian species. There are many species of amphibians which are yet to be discovered at every elevation of the Western Ghats.[58] Deforestation is threatening these amphibians through direct habitat loss and through increased risk of landslides.[59]

Fish
Denison barb is endemic to only three rivers in the Western Ghats

As of 2004, 288 freshwater fish species were listed for the Western Ghats, including 35 also known from brackish or marine water.[12] Several new species have been described from the region since then (e.g., Dario urops and S. sharavathiensis).[60][61] There are 118 endemic species, including 13 genera entirely restricted to the Western Ghats (Betadevario, Dayella, Haludaria, Horabagrus, Horalabiosa, Hypselobarbus, Indoreonectes, Lepidopygopsis, Longischistura, Mesonoemacheilus, Parapsilorhynchus, Rohtee and Travancoria).[62]

There is a higher fish richness in the southern part of the Western Ghats than in the northern,[62] and the highest is in the Chalakudy River, which alone holds 98 species.[63] 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.[62] 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).[12][62][63] The region is home to several brilliantly coloured ornamental fishes like the Denison (or red line torpedo) barb,[64] melon barb, several species of Dawkinsia barbs, zebra loach, Horabagrus catfish, dwarf pufferfish and dwarf Malabar pufferfish.[65] The rivers are also home to Osteobrama bakeri, and larger species such as the Malabar snakehead and Malabar mahseer.[66] A few are adapted to an underground life, including some Rakthamichthys swampeels,[67] and the catfish Horaglanis and Kryptoglanis.[68]

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.[62] 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.[62]

Birds
The Nilgiri wood-pigeon

There are at least 508 bird species. Most of Karnataka's five hundred species of birds are from the Western Ghats region.[69][70] 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, Wayanad laughingthrush, white-bellied blue-flycatcher and the crimson-backed sunbird.[71]

Insects

There are roughly 6,000 insect species.[72] Of 334 Western Ghats butterfly species, 316 species have been reported from the Nilgiri Biosphere Reserve.[73] The Western Ghats are home to 174 species of odonates (107 dragonflies and 67 damselflies), including 69 endemics.[62] Most of the endemic odonate are closely associated with rivers and streams, while the non-endemics typically are generalists.[62] There are several species of leeches found all along the Western Ghats.[74]

Mollusks

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.[75] 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.[62] 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.[62] According to the IUCN, 4 species of freshwater molluscs are considered endangered and 3 are vulnerable. An additional 19 species are considered data deficient.[62]

Flora
Tropical rainforest, Agumbe

The dominant forest type here is tropical rainforest. Montane forests, tropical dry forests and tropical moist forests are also found here. 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; 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, amounting to 8,080 taxa of flowering plants.[76] Various plant species are endemic to the Western Ghats, including the palm tree Bentinckia condapanna and the flower Strobilanthes kunthiana.[77] A number of plant species are also Critically Endangered, such as Dipterocarpus bourdillonii and Phyllanthus anamalayanus.

Echinops sahyadricus is endemic to the mountains, and the specific epithet sahyadricus is refers to them.[78]

Threats
Forest fires 2019

The Western Ghats face a lot of issues. Poaching, deforestation, forest fires, extra hunting and dangers to native tribes are the main threats. Despite the 1972 Indian law of that banned poaching, people still tend to illegally hunt down animals such as tigers, elephants and chital for skin, fur or tusks. Forests here are being destroyed for farming or livestock. Animals that eat livestock are also being killed by farmers. Forest fires take place annually during the dry summer season, especially in the Nagarhole-Bandipur-Wayanad-Mudumalai-Satyamangalam-BRT block which has the most biodiverse locations in the Western Ghats with the largest populations of tigers and elephants residing there.

Native tribes of the Western Ghats are being evicted from their homelands. This results in degradation of the tribal culture. The rich biodiversity in both flora and fauna have made the Western Ghats a target for many corporate companies to gain resources. This however is checked by the Government of India and the State Governments to protect the Western Ghats.

See also

Notes
  1. "Western Ghats". Archived from the original on 4 July 2018. Retrieved 15 January 2019.
  2. "Western Ghats - UNESCO World Heritage Centre". UNESCO World Heritage Centre. Archived from the original on 4 July 2018. Retrieved 1 April 2023.
  3. Myers, N.; Mittermeier, R.A.; Mittermeier, C.G.; Da Fonseca, G.A.B.; Kent, J. (2000). "Biodiversity hotspots for conservation priorities". Nature. 403 (6772): 853–858. Bibcode:2000Natur.403..853M. doi:10.1038/35002501. PMID 10706275. S2CID 4414279.
  4. Migon, P. (2010). Geomorphological Landscapes of the World. Springer. p. 257. ISBN 978-90-481-3054-2.
  5. "A biodiversity hotspot". Archived from the original on 18 January 2019. Retrieved 15 January 2019.
  6. "Western Ghats". UNESCO. Archived from the original on 18 January 2013. Retrieved 3 January 2013.
  7. Lewis, C. (2012). "39 sites in Western Ghats get world heritage status". The Times of India. Archived from the original on 7 July 2012. Retrieved 21 February 2013.
  8. "Peninsular Plateau of India". Archived from the original on 27 February 2023. Retrieved 27 February 2023.
  9. "The Peninsula". Asia-Pacific Mountain Network. Archived from the original on 12 August 2007. Retrieved 19 March 2007.
  10. 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.
  11. Myers, N.; Mittermeier, R.A.; Mittermeier, C.G.; Fonseca, G.A.B.Da; Kent, J. (2000). "Biodiversity Hotspots for Conservation Priorities". Nature. 403 (6772): 853–858. Bibcode:2000Natur.403..853M. doi:10.1038/35002501. PMID 10706275. S2CID 4414279.
  12. 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. S2CID 83574801. Archived from the original on 18 February 2021. Retrieved 17 December 2019.
  13. Jaini, Padmanabh S. (2003). Jainism and Early Buddhism. Jain Publishing Company. pp. 523–538. ISBN 9780895819567. Archived from the original on 27 April 2023. Retrieved 22 November 2020.
  14. Sunithi L. Narayan, Revathy Nagaswami, 1992, Discover sublime India: handbook for tourists Archived 27 April 2023 at the Wayback Machine, Page 5.
  15. Ghat definition Archived 30 January 2019 at the Wayback Machine, Cambridge dictionary.
  16. 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.
  17. "Western Ghats – UNESCO World Heritage Centre". Archived from the original on 4 July 2018. Retrieved 15 January 2019.
  18. "The Geography of India". all-about-india.com. Archived from the original on 9 November 2010. Retrieved 19 November 2010.
  19. "7 major mountain ranges in India: Some of the highest mountains in the world". India Today. 3 April 2017. Archived from the original on 23 August 2020. Retrieved 5 September 2020.
  20. Sehgal, K. L. "Coldwater fish and fisheries in the Western Ghats, India". FAO. Archived from the original on 22 October 2008. Retrieved 22 September 2008.
  21. "Indian Dams by River and State". Rain water harvesting. Archived from the original on 19 March 2007. Retrieved 19 March 2007.
  22. 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.
  23. Samani, R.L.; Ayhad, A.P. (2002). "Siltation of Reservoirs-Koyna Hydroelectric Project-A Case Study". In S. P. Kaushish; B. S. K. Naidu (eds.). Silting Problems in Hydropower Plants. Bangkok: Central Board of Irrigation and Power. ISBN 978-90-5809-238-0.
  24. 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.
  25. "Climate data for cities worldwide - Climate-Data.org". en.climate-data.org. Archived from the original on 7 May 2019. Retrieved 26 July 2021.
  26. "Talukawise Rainy Days & Total Rainfall" (PDF). mahasdb.maharashtra.gov.in. 2013. pp. 1–2. Archived (PDF) from the original on 16 March 2023. Retrieved 14 March 2023.
  27. "Camp at world's highest tea estate Kolukkumalai". OnManorama. Archived from the original on 27 April 2023. Retrieved 12 June 2019.
  28. Kumar, Ajith. Impact of rainforest fragmentation on small mammals and herpetofauna in the Western Ghats, South India (PDF) (Report). Salim Centre for Ornithology and Natural History, Coimbatore. Archived from the original (PDF) on 19 December 2008.
  29. "The Nilgiri Bio-sphere Reserve". Archived from the original on 28 September 2006.
  30. Ramesh (21 November 2009). "No clearance for mining, hydel projects that destroy Western Ghat". The Hindu. Palakkad: Kasturi & Sons Ltd. Archived from the original on 17 October 2015. Retrieved 29 December 2009.
  31. staff (4 August 2009). "Gundia project has not got Centre's nod". The Hindu. Chennai, India. Archived from the original on 8 August 2009. Retrieved 29 December 2009.
  32. Madhav Gadgil (31 August 2012). "Report of the Western Ghats Ecology Expert Panel" (PDF). Westernghatindia.org. Ministry of Environment and Forests, Government of India. Part 1: summary XIX. Archived (PDF) from the original on 20 September 2015. Retrieved 4 May 2012.
  33. "Vested interests in Western Ghats". Deccan Herald. Archived from the original on 4 March 2016. Retrieved 5 May 2016.
  34. "Report is anti environmental". The Hindu. Archived from the original on 4 January 2016. Retrieved 14 May 2016.
  35. Warrier, Shobha. "'The Kasturirangan Report is a disaster for the Western Ghats'". Rediff. Archived from the original on 26 July 2021. Retrieved 26 July 2021.
  36. "Paradise lost". Hindustan Times. Archived from the original on 2 February 2014. Retrieved 14 May 2016.
  37. "World Heritage sites, Tentative lists, Western Ghats sub cluster". UNESCO. 2007. Archived from the original on 12 November 2022. Retrieved 30 March 2007.
  38. "UNESCO heritage sites". UNESCO. Archived from the original on 18 January 2013. Retrieved 30 March 2007.
  39. "UN designates Western Ghats as world heritage site". Times of India. 2 July 2012. Archived from the original on 26 December 2018. Retrieved 28 July 2013.
  40. Nameer, P.O.; Molur, Sanjay; Walker, Sally (November 2001). "Mammals of the Western Ghats: A Simplistic Overview". Zoos' Print Journal. 16 (11): 629–639. doi:10.11609/jott.zpj.16.11.629-39. S2CID 87414084. Archived from the original on 27 April 2023. Retrieved 17 December 2019.
  41. Singh, M.; Kumar, A.; Kumara, H.N. (2020). "Macaca silenus". IUCN Red List of Threatened Species. 2020: e.T12559A17951402. doi:10.2305/IUCN.UK.2020-2.RLTS.T12559A17951402.en. Retrieved 11 November 2021.
  42. Singh, M.; Kaumanns, W. (2005). "Behavioural studies: A necessity for wildlife management" (PDF). Current Science. 89 (7): 1233. Archived from the original (PDF) on 13 January 2007.
  43. 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. Archived (PDF) from the original on 23 September 2015. Retrieved 7 February 2016.
  44. Mudappa, D.; Helgen, K.; Nandini, R. (2016). "Viverra civettina". IUCN Red List of Threatened Species. 2016: e.T23036A45202281. doi:10.2305/IUCN.UK.2016-1.RLTS.T23036A45202281.en. Retrieved 11 November 2021.
  45. Mudappa, D.; Noon, B.R.; Kumar, A. & Chellam, R. (2007). "Responses of small carnivores to rainforest fragmentation in the southern Western Ghats, India". Small Carnivore Conservation. 36: 18–26.
  46. 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.
  47. "Elephant Reserves". ENVIS Centre on Wildlife & Protected Areas. Archived from the original on 20 May 2017. Retrieved 30 January 2016.
  48. "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.
  49. "Nilgiri tahr population over 3,000: WWF-India". The Hindu. 3 October 2015. Archived from the original on 8 February 2016. Retrieved 1 May 2016.
  50. Molur, S.; Brandon-Jones, D.; Dittus, W.; Eudey, A.; Kumar, A.; Singh, M.; Feeroz, M.M.; Chalise, M.; Priya, P. & Walker, S. (2003). Status of South Asian Primates: Conservation Assessment and Management Plan (C.A.M.P.) Workshop Report, 2003. Coimbatore: Zoo Outreach Organization/CBSG-South Asia.
  51. Srinivasulu C, Srinivasulu B, Molur S (compilers) (2014). The Status and Distribution of Reptiles in the Western Ghats, India. Conservation and Management Plan (CAMP). Coimbatore, Tamil Nadu, India: Wildlife Information Liaison Development Society. 160 pp. ISBN 978-81-88722-40-2
  52. 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.
  53. Harry V., Andrews. "Status and Distribution of the Mugger Crocodile in Tamil Nadu". WII. Archived from the original on 20 December 2004.
  54. Karthikeyan, V. "A Report on the Survey of Rainforest Fragments in the Western Ghats for Amphibian Diversity". Archived from the original on 15 December 2005.
  55. Radhakrishnan, C.; Gopi, K.C. & Dinesh, K.P. (2007). "Zoogeography of Nasikabatrachus sahyadrensis Biju and Bossuyt (Amphibia: Anura; Nasikabatrachidae) in the Western Ghats, India". Records of the Zoological Survey of India. 107 (4): 115–121. doi:10.26515/rzsi/v107/i4/2007/159116. S2CID 251728922.
  56. An evaluation of the endemism of the amphibian assemblages from the Western Ghats using molecular techniques (PDF) (Report). WII. Archived from the original (PDF) on 19 December 2008.
  57. "New 'mysterious' frog species discovered in India's Western Ghats". BBC News. 13 February 2019. Archived from the original on 13 February 2019. Retrieved 13 February 2019.
  58. Environment, The Hindu (2 December 2020). "Into the secret world of frogs and snakes". No. December 2020. THG Publishing PVT LTD. Archived from the original on 20 January 2021. Retrieved 1 March 2021.
  59. Spoorthy Raman (22 May 2023). "As tourism booms in India's Western Ghats, habitat loss pushes endangered frogs to the edge". Mongabay. Retrieved 26 May 2023.
  60. Britz, A.; Philip (2012). "Dariourops, a new species of badid fish from the Western Ghats, southern India" (PDF). Zootaxa. 3348: 63–68. doi:10.11646/zootaxa.3348.1.5. S2CID 87261596. Archived from the original (PDF) on 8 February 2020.
  61. Sreekantha; Gururaja, K.V.; Remadevi, K.; Indra, T.J.; Ramachandra, T.V. (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.
  62. 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. Archived (PDF) from the original on 3 April 2015. Retrieved 25 June 2014.
  63. 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. S2CID 7563806.
  64. Raghavan, R.; Philip, S.; Ali, A. & Dahanukar, N. (2013). "Sahyadria, a new genus of barbs (Teleostei: Cyprinidae) from Western Ghats of India". Journal of Threatened Taxa. 5 (15): 4932–4938. doi:10.11609/JoTT.o3673.4932-8.
  65. "Zoologica" (PDF). Archived from the original (PDF) on 16 July 2004. Retrieved 18 December 2006.
  66. 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. Bibcode:2011PLoSO...621272B. doi:10.1371/journal.pone.0021272. PMC 3123301. PMID 21731689.
  67. Gobi, K.C. (2002). "A new synbranchid fish, Monopterus digressus from Kersla, Peninsular India". Rec. Zool. Surv. India. 100 (1–2): 137–143. doi:10.26515/rzsi/v100/i1-2/2002/159618. S2CID 87291325.
  68. Vincent, M.; Thomas, J. (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. S2CID 39313203.
  69. "Karnataka birds". karnatakabirds.net. Archived from the original on 29 April 2006.
  70. "Karnataka forest department (forests at a glance – Bio-diversity". Archived from the original on 27 September 2007.
  71. "Restricted-range species". BirdLife EBA Factsheet 12 : Western Ghats. BirdLife International. 1998. Archived from the original on 2 January 2009. Retrieved 3 December 2009.
  72. 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
  73. 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
  74. Chandra, M. (1976). "On a Small Collection of leeches from Maharashtra State, India" (PDF). Records of the Zoological Survey of India. 69 (1–4): 325–328. doi:10.26515/rzsi/v69/i1-4/1971/161420. S2CID 251700847. Archived (PDF) from the original on 6 October 2016. Retrieved 5 October 2016.
  75. Madhyastha N. A.; Rajendra; Mavinkurve G. & Shanbhag Sandhya P. "Land Snails of Western Ghats". WII. Archived from the original on 17 July 2009.
  76. 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
  77. Dransfield, J.; Uhl, N.W.; Asmussen, C.B.; Baker, W.J.; Harley, M.M.; Lewis, C.E. (2008). Genera Palmarum: The Evolution and Classification of Palms. Royal Botanic Gardens, Kew. ISBN 978-1-84246-182-2.
  78. More, Sushant; Conti, Fabio; Bhosale, Harshal S. (October 2020). "Echinops sahyadricus sp. nov. (Asteraceae: Cardueae), from the northern Western Ghats, Maharashtra, India". Nordic Journal of Botany. 38 (10). doi:10.1111/njb.02860. S2CID 226368463. Retrieved 18 April 2022.

References

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