author(s)
Dr. K Baranidharan, Dr. M Vijayabhama and P Bhuvensh

abstract
Biodiversity encompasses of variety and variability of all living organisms on the earth. India is one among the 17 mega diverse countries in the world with 2.4% of the land area, accounting for 7-8% of the species of the world. India is one of these mega-diverse countries with 2.4% of the land area, accounting for 7-8% of the species of the world 91,000 species of animals and 45,500 species of plants that have been documented in its ten bio-geographic regions. Sathyamangalam Tiger Reserve encompasses large contiguous Reserve Forests extending over 1455 sq. km with diversity of vegetation types from dry thorn shrub to patches of semi-evergreen forests in the upper regions. It is part of 7^th elephant reserve and facilitates annual migration between Eastern Ghats and Western Ghats. In this study the rich Faunal and herpto-Faunal Diversity of the area is assessed. This results revealed that so far 21 mammal species has been recorded in Sathyamangalam Tiger Reserve, through direct and indirect evidences. In that 15 species of herbivores 5 species of carnivores and 1 species of omnivore were recorded. The result shows that mammal population was recorded maximum in December followed by September and March. The herpeto-faunal diversity of Sathyamangalam Tiger Reserve study brought to elucidate the information on 13 species of reptiles and 4 species of amphibians were recorded. Regarding the season, the result shows that reptile population was recorded maximum in September followed by December and March. Regarding the IUCN status of fauna based on the Red Data Book 38 faunal species were recorded in Sathyamangalam Tiger Reserve, 21 species mammals among them 11 are Least Concern, 4 Near Threatened, 3 Vulnerable and 3 Endangered, 13 species of reptiles among them 9 Not Assessed, 2 Least Concern, 1 Near Threatened, 1 Vulnerable and 4 species of amphibians among them 4 Least Concern according to IUCN status.