Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment.

GS-3

5.NILGIRI BIOSPHERE RESERVE

ORIGIN:

  • The name ’Nilgiris’ with literary meaning ‘blue mountains’has originated from the blue flower clad mountains of the Nilgiris plateau within the State of Tamil Nadu.
  • It was the first biosphere reserve in Indiaestablished in the year 1986.

GEOGRAPHY:

  • The total area of the Nilgiri Biosphere Reserve is 5,520 sq. km.
  • It is located in the Western Ghatsand encompasses parts of Tamil Nadu,Kerala and Karnataka.

ECOLOGICAL CHARACTERISTICS:

  • It exemplifies the tropical forest biomewhich portrays the confluence of Afro-tropical and Indo-Malayan biotic zonesof the world.
  • Biogeographically, Western Ghats is the most important region and one of the noted Biodiversity Hotspots(biogeographic regions having highest density of endemic species)for speciation in the tropics.

IMPORTANT POINTS:

  • The NBR harbors a wide spectrum of ecosystem types. Major parts of the core areas spread over Kerala and Tamil Nadu States, include evergreen, semievergreen, moist deciduous montane sholas and grassland types ofvegetation.
  • Whereas the core area spread over the State of Karnataka contains mostly dry deciduous forests and a few patches of moist deciduous, semi evergreen and scrub jungles.
  • Animals like Nilgiritahr, Nilgiri langur, slender loris, blackbuck, tiger, gaur, Indian elephant and martenare found here.
  • Freshwater fishes such as Nilgiri danio(Devarioneilgherriensis), Nilgiri barb(Hypselobarbusdubuis) andBowany barb(Puntius bovanicus) are endemic tothis Biosphere Reserve.
  • Many of the major tributaries of the river Cauverylike the Bhavani, Moyar, Kabini and other rivers like Chaliyar, Punampuzha,, have theirsource and catchment areas within the reserve boundary.
  • Tribal groups like the Todas, Kotas, Irullas, Kurumbas, Paniyas, Adiyans, EdanadanChettis, Cholanaickens, Allar, Malayan,, are native to thereserve.
  • The Mudumalai Wildlife Sanctuary, Wayanad Wildlife Sanctuary, Bandipur National Park, Nagarhole National Park, Mukurthi National Park and Silent Valleyare the protected areas present within this reserve.

 

SOURCE: PIB

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