The type of animals found in a given area is the function of its existing plant communities which in turn are governed by geo-morphology of soil, climate and rainfall conditions. 17 Mammals, 11 Birds and 7 Butterflies are Western Ghat endemics. Mammals like Nilgiri Tahr, Nilgiri Marten and Birds like White Bellied Shorting and Kerala Laughing Thrush have closely related species in the Himalayas. Roarchestes resplendens, a Frog has been found only near the Anamudi peak. A total of 85 species of Butterflies, 81 species of Birds (45 confined to Shola forest and 16 migratory) 21 species of Mammals, 22 species of Amphibians and 33 species of Reptiles are reported (Balakrishnan M, Surendrananthan Asari P.K, 2002).
There are 48 species of Mammals recorded from the park (Fauna of Eravikulam National Park, Zoological Survey of India, Faunal Conservation Series 13, 2002 and management plan of Eravikulam National Park 2002 to 2011) of which 17 are endemic to the Western Ghats. Checklist of Mammals »