Population study on endemic trees and shrubs in Grasslands of Nilgiris Forest Division

Undisturbed Grassland is a paradise for endemic species in Nilgiris. However the number of endemic species is not as diverse by the invasion of exotic and the placement of plantation. In order to maintain the volume, diversity and density of all the endemics of this area, there is a need to develop interspecies relationships which are very important to conserve biodiversity. Grasslands preserve their diversity by their association; because of this association endemic species survive in this that habitat. Introduction of species like Acacia mearnsii, Lantana camara, Chromolaena odorata, Pteridium aquilinum, Cestrum aurantiacum, Cytisus scoparius, Ulex europaeus, Ageratina adenophora disturb the endemic species population in grasslands of Nilgiris. The major population of exotic weeds spoils the succession and survival of endemic species. This comparison study between virgin and disturbed grassland reveals the habitat loss of endemic plants in Nilgiris Forest division. As per result. Totally 61 species of trees and shrubs found in Disturbed grassland, 79 species of trees and shrubs found in undisturbed grassland. 16 endemic angiosperms were recorded in the study area.