Malabar Coast moist forests

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Malabar Coast moist forests
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Ecoregion IM0124.png
Map of the Malabar Coast moist forests ecoregion
Ecology
Realm Indomalayan
Biome tropical and subtropical moist broadleaf forests
Borders
Geography
Area34,219 km2 (13,212 sq mi)
Country India
States Goa, Karnataka, Kerala, Maharashtra and Tamil Nadu
Conservation
Conservation status critical/endangered [1]
Protected1,251 km² (4%) [2]

The Malabar Coast moist forests are a tropical moist broadleaf forest ecoregion of southwestern India.

Contents

Geography

The ecoregion lies along India's Konkan and Malabar coasts, in a narrow strip between the Arabian Sea and the Western Ghats range, which runs parallel to the coast. It has an area of 35,500 square kilometers (13,700 sq mi), and extends from northern Maharashtra through Goa, Karnataka and Kerala to Kanniyakumari in southernmost Tamil Nadu.

The ecoregion extends from sea level to the 250 meter contour of the Western Ghats. It is bounded on the east by the North Western Ghats moist deciduous forests in Maharashtra and Karnataka, and the South Western Ghats moist deciduous forests in Kerala.

Much of the ecoregion is densely populated, and it includes several large cities, including Mumbai in Maharashtra, Mormugao and Margao in Goa, Mangalore in Karnataka, and Thiruvananthapuram, Kochi, and Kozhikode in Kerala.

Climate

The climate is tropical and humid. Rainfall varies seasonally, falling mostly with the southwest monsoon between June and September. Rainfall is generally higher in the south, decreasing and becoming more seasonal as one moves north. [3]

Flora

The original vegetation in the ecoregion was tropical evergreen rainforest, with some deciduous trees particularly in drier areas. The original forests have mostly been replaced with or interspersed with teak (Tectona grandis), a mostly deciduous tree that drops its leaves during the winter dry season. [1]

Characteristic canopy trees include Tetrameles nudiflora, Stereospermum personatum, Dysoxylum binectariferum, Ficus nervosa, Ficus glomerata, Pterocarpus marsupium, Salmalia malabarica, Terminalia bellerica, Terminalia tomentosa, Anogeissus latifolia, Dalbergia latifolia, Lannea coromandelica, Madhuca indica, Garuga pinnata, Syzygium cumini, Olea dioica, Pouteria tomentosa, Bridelia retusa, Mangifera spp., and Actinodaphne angustifolia . There is an understorey of low trees ( Erythrina variegata, Butea monosperma, Wrightia tinctoria, Bauhinia racemosa , and Zizyphus rugosa ) and shrubs ( Flacourtia spp., Woodfordia fruticosa, Meyna laxiflora , and Carissa congesta ). [1]

In drier areas along Karnataka's northern coast, the deciduous trees Lagerstroemia microcarpa , teak (Tectona grandis), and Dillenia pentagyna are predominant. [1]

Swamp forests of Myristica spp. are found in low-lying coastal areas, but are now endangered. [1] The Kerala Backwaters are an extensive coastal lagoon system in the southern portion of the ecoregion.

Fauna

There are 97 native mammal species in the ecoregion. The ecoregion's remaining habitat is too limited and fragmented to support viable populations of most larger mammals, including Asian elephant (Elephas maximus), tiger (Panthera tigris) sloth bear (Melursus ursinus), gaur (Bos gaurus), and dhole (Cuon alpinus). Wild tigers and Asian elephants are locally extinct, but still found in adjacent portions of the Western Ghats. The other large mammals are locally threatened. [1]

Several smaller mammals are threatened by habitat loss, including the gray slender loris (Loris lydekkerianus), Jerdon's palm civet (Paradoxurus jerdoni), and grizzled giant squirrel (Ratufa macroura). [1]

The ecoregion has one strictly endemic species, the Kerala rat (Rattus ranjiniae). Day's shrew (Suncus dayi) is found in both the Malabar Coast forests and the adjacent South Western Ghats moist deciduous forests. The Nilgiri langur (Semnopithecus johnii), Jerdon's civet, and the Malabar large-spotted civet (Viverra civettina) also inhabit the South Western Ghats moist deciduous forests and South Western Ghats montane forests. The Travancore flying squirrel (Petinomys fuscocapillus) is found in the ecoregion and on Sri Lanka. [1]

There are 280 native species of birds, including the Malabar grey hornbill (Ocyceros griseus), Indian grey hornbill (Ocyceros birostris), great hornbill (Buceros bicornis), lesser florican (Sypheotides indicus), and greater flamingo (Phoenicopterus roseus). [1]

Conservation and threats

Very little of the natural vegetation of the ecoregion remains; it has largely been cleared for agriculture, grazing, and teak plantations. [1]

Protected areas

A 2017 assessment found that 1,251 km², or 4%, of the ecoregion is in protected areas. [2] Protected areas include: [3] [4]

See also

Related Research Articles

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The term Malabar rainforests refers to one or more distinct ecoregions recognized by biogeographers:

  1. the Malabar Coast moist forests formerly occupied the coastal zone to the 250 metre elevation
  2. the South Western Ghats moist deciduous forests grow at intermediate elevations
  3. the South Western Ghats montane rain forests cover the areas above 1000 metres elevation
Netravali Wildlife Sanctuary

Netravali Wildlife Sanctuary is located in South-Eastern Goa, India. It constitutes one of the vital corridors of the Western Ghats and covers an area of about 211km2. Netravali or Neturli is an important tributary of River Zuari, which originates in the sanctuary. Forests mostly consist of moist deciduous vegetation interspersed with evergreen and semi-evergreen habitat; there are also two all-season waterfalls in the sanctuary.

Kali Tiger Reserve Protected area and tiger reserve in Karnataka, India

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Upper Gangetic Plains moist deciduous forests Ecoregion of India

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Lower Gangetic Plains moist deciduous forests Ecoregion of India and Bangladesh

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Koyna Wildlife Sanctuary

Koyna Wildlife Sanctuary is a wildlife sanctuary and natural World Heritage Site, which is located in Satara district of the Indian state of Maharashtra. Further, this wildlife sanctuary is designated as an Important Bird area. The sanctuary is nested in the Western Ghats, covering an area of around 423.55 km2 (163.53 sq mi), and elevations ranging from 600 to 1,100 m. It was notified in 1985 as a wildlife sanctuary situated in Maharashtra. It forms the northern portion of the Sahyadri Tiger Reserve, with Chandoli National Park forming the southern part of the reserve.

The Bori Wildlife Sanctuary is a wildlife sanctuary in Hoshangabad District of Madhya Pradesh state in central India.

Central Deccan Plateau dry deciduous forests

The Central Deccan Plateau dry deciduous forests in Western and Southern India, containing large protected areas of natural tiger habitat.

Geography of South India

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Sahyadri Tiger Reserve is a reserve in the state of Maharashtra, created by the Indian government in 2008. Located in the Sahyadri Ranges of the Western Ghats of Maharashtra, it is part of the ecoregions of North Western Ghats moist deciduous forests and North Western Ghats montane rain forests. These ranges form a common boundary between Maharashtra, Karnataka and Goa, and constitute rich evergreen, semi-evergreen and moist deciduous forests. The area is spread over the four districts of Satara, Sangli, Kolhapur and Ratnagiri.

Shoolpaneshwar Wildlife Sanctuary is a protected area in India's Gujarat state, located in the western Satpura Range south of the Narmada River and is 607.7 km2 (234.6 sq mi) large. It shares a common boundary with Madhya Pradesh and Maharashtra. It encompasses mixed dry deciduous forest, riverine forest, few pockets of moist teak forest, agricultural fields and two water reservoirs. It was established in 1982.

Irrawaddy moist deciduous forests Ecoregion in Myanmar

The Irrawaddy moist deciduous forests is a tropical moist broadleaf forest ecoregion in central Myanmar. The ecoregion occupies the central basin of the Irrawaddy River and the lower basin of the Salween River. The ecoregion is characterized by forests of tall trees which drop their leaves in the dry season. Most of the ecoregion's forests have been converted to agriculture.

References

  1. 1 2 3 4 5 6 7 8 9 10 "Malabar Coast moist forests". Terrestrial Ecoregions. World Wildlife Fund.
  2. 1 2 Eric Dinerstein, David Olson, et al. (2017). An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm, BioScience, Volume 67, Issue 6, June 2017, Pages 534–545; Supplemental material 2 table S1b.
  3. 1 2 Wikramanayake, Eric; Eric Dinerstein; Colby J. Loucks; et al. (2002). Terrestrial Ecoregions of the Indo-Pacific: a Conservation Assessment. Island Press; Washington, DC. pp. 311-313
  4. "Malabar Coast moist forests". Digital Observatory for Protected Areas Explorer 4. Accessed 13 November 2020.