South Deccan Plateau dry deciduous forests | |
---|---|
Ecology | |
Realm | Indomalayan |
Biome | tropical and subtropical dry broadleaf forests |
Borders | |
Geography | |
Area | 81,925 km2 (31,631 sq mi) |
Country | India |
States | |
Conservation | |
Conservation status | critical/endangered |
Protected | 7,597 km² (9%) [1] |
The South Deccan Plateau dry deciduous forests is a tropical dry forest ecoregion in southern India. The ecoregion lies in the southernmost portion of the Deccan Plateau, and includes the southernmost portion of the Eastern Ghats.
The ecoregion lies in the rain shadow of the Western Ghats, and receives most of its rainfall with the June–September southwest monsoon. It is characterized by tall trees that drop their leaves during the dry winter and spring months. Much of the forest has been degraded through over-use, and thorn forests and shrub thickets are common. To the north and east, the dry deciduous forests transition to the drier Deccan thorn scrub forests.
These forests have three stories, with an upper canopy at 15–25 m (49–82 ft), an understory at 10–15 m (33–49 ft), and undergrowth at 3–5 m (9.8–16.4 ft). Trees are draped in lianas in denser, mature forests. The vegetation is characterized by Albizia amara , Anogeissus latifolia , Boswellia serrata , Cassia fistula , Chloroxylon swietenia , Dalbergia latifolia , Diospyros montana , Hardwickia binata , Pterocarpus marsupium , Senegalia catechu , Shorea talura , Sterospermum personatum , Terminalia bellirica , Terminalia paniculata , and Terminalia elliptica . Sal found here is used for railway sleepers and house construction while teak, a durable timber, is used for ship building and furniture. Sandalwood ( Santalum album ) is used for perfume and semal for toys. [2]
The ecoregion is home to 75 mammal species. Threatened species include the Indian elephant (Elephas maximus), wild dog (Cuon alpinus), sloth bear (Melursus ursinus), chousingha (Tetracerus quadricornis), gaur (Bos gaurus), and grizzled giant squirrel (Ratufa macruora). Salim Ali's fruit bat (Latidens salimalii) is critically endangered, and is near-endemic. [3] 260 species of birds live in the eco-region, and two, the rufous babbler (Turdoides subrufus) and yellow-throated bulbul (Pycnonotus xantholaemus) are near-extinct. The threatened great Indian bustard (Ardeotis nigriceps) and lesser florican (Eupodotis indica) inhabit the eco-region. [3]
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. It is a UNESCO World Heritage Site and is one of the 36 biodiversity hotspots in the world. It is sometimes called the Great Escarpment of India. It contains a very large proportion of the country's flora and fauna, many of which are endemic to this region. According to UNESCO, 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. 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.
The South Western Ghats montane rain forests is an ecoregion in South India, covering the southern portion of the Western Ghats in Karnataka, Kerala and Tamil Nadu at elevations from 1,000 to 2,695 m. Annual rainfall in this ecoregion exceeds 2,800 mm (110 in).
The East Deccan dry evergreen forests is an ecoregion of southeastern India. The ecoregion includes the coastal region behind the Coromandel Coast on the Bay of Bengal, between the Eastern Ghats and the sea. It covers eastern Tamil Nadu, part of Puducherry and south eastern Andhra Pradesh.
The Malabar Coast moist forests are a tropical moist broadleaf forest ecoregion of southwestern India.
The North Western Ghats moist deciduous forests is a tropical moist broadleaf forest ecoregion of southwestern India.
The South Western Ghats moist deciduous forests is an ecoregion in the Western Ghats of southern India with tropical and subtropical moist broadleaf forests. This biome covers the Nilgiri Hills between elevation of 250 and 1,000 m in Kerala, Karnataka and Tamil Nadu states.
The North Western Ghats montane rain forests is a tropical moist broadleaf forest ecoregion of southwestern Indian peninsula. It covers an area of 30,900 square kilometers (11,900 sq mi), extending down the spine of the Western Ghauts range, from southernmost Gujarat through Damaon, Maharashtra, Goa& Karnataka. The montane rain forests are found above 1000 meters elevation, and are surrounded at lower elevations by the North Western Ghats moist deciduous forests.
The Biligirirangana Hills or Biligirirangan Hills is a hill range situated in south-western Karnataka, at its border with Tamil Nadu in South India. The area is called Biligiri Ranganatha Swamy Temple Wildlife Sanctuary or simply BRT Wildlife Sanctuary. It is a protected reserve under the Wildlife Protection Act of 1972. Being close to the Eastern Ghats as well as the Western Ghats, the sanctuary has floral and faunal associations with both regions. The site was declared a tiger reserve in January 2011 by the Karnataka government, a few months after approval from India's National Tiger Conservation Authority.
The term Malabar rainforests refers to one or more distinct ecoregions recognized by biogeographers:
The Upper Gangetic Plains moist deciduous forests is a tropical and subtropical moist broadleaf forests ecoregion of northern India.
The Eastern Highlands moist deciduous forests, presently known as East Deccan moist deciduous forests, is a tropical and subtropical moist broadleaf forests ecoregion in east-central India. The ecoregion covers an area of 341,100 square kilometers (131,700 sq mi), extending across portions of Andhra Pradesh, Chhattisgarh, Jharkhand, Madhya Pradesh, Maharashtra, Odisha, and Telangana states.
The Northern dry deciduous forests, presently known as the North Deccan dry deciduous forests, is a tropical dry broadleaf forest ecoregion of east-central India.
The Lower Gangetic Plains moist deciduous forests is a tropical and subtropical moist broadleaf forests ecoregion of Bangladesh and India. The ecoregion covers an area of 254,100 square kilometres (98,100 sq mi), comprising most of Bangladesh and the Indian states of West Bengal, Bihar and Tripura, and extending into adjacent states of Odisha, Uttar Pradesh and a tiny part of Assam, as well as adjacent western Myanmar.
The Narmada Valley dry deciduous forests are a tropical dry forest ecoregion of central India. The ecoregion lies mostly in Madhya Pradesh state, but extends into portions of Chhattisgarh, Maharashtra, Karnataka and Uttar Pradesh states.
The Deccan thorn scrub forests are a xeric shrubland ecoregion of south India and northern Sri Lanka. Historically this area was covered by tropical dry deciduous forest, but this only remains in isolated fragments. The vegetation now consists of mainly of southern tropical thorn scrub type forests. These consist of open woodland with thorny trees with short trunks and low, branching crowns; spiny and xerophytic shrubs; and dry grassland. This is the habitat of the great Indian bustard and blackbuck, though these and other animals are declining in numbers; this area was at one time home to large numbers of elephants and tigers. Almost 350 species of bird have been recorded here. The remaining natural habitat is threatened by overgrazing and invasive weeds, but there are a number of small protected areas which provide a haven for the wildlife. Trees in these forests have adapted to not require much water.
Bayaluseeme or Bayalu Seeme is the area lying to the east of Malenadu, a region of Karnataka state in India. The area is largely open plain, with few hillocks. It includes the districts of Bangalore, Bagalkot, Bijapur, Chitradurga, Davanagere, Dharwad, Gadag, Hassan, Haveri, Mandya, Mysore, and Tumkur.
The Central Deccan Plateau dry deciduous forests in Western and Southern India, containing large protected areas of natural tiger habitat.
The state of Karnataka in South India has a rich diversity of flora and fauna. It has a recorded forest area of 38720 km2 which constitutes 22.3467719% of the total geographical area of the state. These forests support 25% of the elephant population and 20% of the tiger population of India. Many regions of Karnataka are still unexplored and new species of flora and fauna are still found. The Western Ghats mountains in the western region of Karnataka are a biodiversity hotspot. Two sub-clusters of the Western Ghats, Talacauvery and Kudremukh in Karnataka, are in a tentative list of sites that could be designated as World Heritage Sites by UNESCO. The Bandipur and Nagarahole national parks which fall outside these subclusters were included in the Nilgiri biosphere reserve in 1986, a UNESCO designation. Biligiriranga Hills in Karnataka is a place where Eastern Ghats meets Western Ghats. The state bird and state animal of Karnataka are Indian roller and the Indian elephant respectively. The state tree and state flower are sandalwood and lotus respectively. Karnataka is home to 524 tigers.
The Geography of South India comprises the diverse topological and climatic patterns of South India. South India is a peninsula in the shape of a vast inverted triangle, bounded on the west by the Arabian Sea, on the east by the Bay of Bengal and on the north by the Vindhya and Satpura ranges.
Sathyamangalam Tiger Reserve is a protected area and tiger reserve in the Eastern Ghats in the Erode District of the Indian state of Tamil Nadu. It has a tiger population of 83 individuals and a leopard population of 111 individuals according to the 2019 census.