Nilgiris District - Ecoregions

Ecoregions

Two ecoregions cover portions of the Nilgiris. The South Western Ghats moist deciduous forests lie between 250 and 1000 meters elevation. These forests extend south along the Western Ghats range to the southern tip of India. These forests are dominated by a diverse assemblage of trees, many of whom are deciduous during the winter and spring dry season. These forests are home to the largest herd of Asian Elephants in India, who range from the Nilgiris across to the Eastern Ghats. The Nilgiris and the South Western Ghats is also one of the most important tiger habitats left in India.

The South Western Ghats montane rain forests ecoregion covers the portion of the range above 1000 meters elevation. These evergreen rain forests are among the most diverse on the planet. Above 1500 meters elevation, the evergreen forests begin to give way to stunted forests, called sholas, which are interspersed with open grassland. These grasslands are the home to the endangered Nilgiri Tahr, which resembles a stocky goat with curved horns. The Nilgiri Tahrs are found only in the montane grasslands of the South Western Ghats, and number only about 2000 individuals.

Three national parks protect portions of the Nilgiris. Mudumalai National Park lies in the northern part of the range where Kerala, Karnataka, and Tamil Nadu meet, and covers an area of 321 km². Mukurthi National Park lies in the southwest of the range, in Kerala, and covers an area of 78.5 km², which includes intact shola-grassland mosaic, habitat for the Nilgiri tahr. Silent Valley National Park is just to the south and contiguous with these two parks, and covers an area of 89.52 km². Outside of these parks much of the native forest has been cleared for grazing cattle, or has been encroached upon or replaced by plantations of tea, Eucalyptus, Cinchona and Acacia. The entire range, together with portions of the Western Ghats to the northwest and southwest, was included in the Nilgiri Biosphere Reserve in 1986, India's first biosphere reserve.

In January 2010, the Nilgiri Declaration set out a wide range environmental and sustainable development goals to be reached by 2015.

The region has also given its name to a number of bird species, including the Nilgiri Pipit, Nilgiri Woodpigeon and Nilgiri Blackbird.