- The Nilgiri Biosphere Reserve is an International Biosphere Reserve in the Western Ghats and Nilgiri Hills ranges of South India. The Western Ghats, Nilgiri Sub-Cluster (6,000+ km²), conjoining the Nilgiri Biosphere Reserve, is a World Heritage Site declared by UNESCO in 2012.
- It includes the Mudumalai, Mukurthi, Wayanad and Bandipur national parks.
- The reserve encompasses 5,520 km² in the states of Tamil Nadu (2537.6 km²), Karnataka (1527.4 km²) and Kerala(1455.4 km²). It forms an almost complete ring around the Nilgiri Plateau.
Flora and Fauna
- The reserve extends from the tropical and subtropical moist broadleaf forests, tropical moist forests of the western slopes of the Ghats to the tropical and subtropical dry broadleaf forests tropical dry forests on the east slopes. Rainfall ranges from 500mm to 7000mm per year. The reserve encompasses three ecoregions, the South Western Ghats moist deciduous forests, South Western Ghats montane rain forests, and South Deccan Plateau dry deciduous forests.
- Fauna includes over 100 species of mammals, 350 species of birds, 80 species of reptiles, about 39 species of fish, 31 amphibians and 316 species of butterflies. It includes thetiger, Asian elephant, Lion-tailed macaque and Nilgiri tahr. It has largest population of two endangered species Lion-tailed macaque and Nilgiri tahr.
- The Nilgiri Biosphere Reserve is very rich in plant diversity. About 3,300 species of flowering plants can be seen here. Of the 3,300 species, 132 are endemic to the reserve. The genus Baeolepis is exclusively endemic to the Nilgiris. Some of the plants entirely restricted to the Nilgiri Biosphere Reserve include species of Adenoon, Calacanthus, Baeolepis,Frerea, Jarodina, Wagatea, Poeciloneuron, etc.
- Of the 175 species of orchids found in the Nilgiri Biosphere Reserve, eight are endemic. These include endemic and endangered species of Vanda, Liparis, Bulbophyllum andThrixspermum. The sholas of the reserve are a treasure house of rare plant species.
- About 80% of flowering plants reported from Western Ghats occur in NBR.
Core and buffer areas
The 1986 designation by the Government of India established core and buffer areas within the biosphere reserve.
- Core area: 1240.3 km² (701.8 km² in Karnataka, 264.5 km² in Kerala, 274 km² in Tamil Nadu)
- Buffer area: 4280
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