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Amphibian assemblages in undisturbed and disturbed areas of Kudremukh National Park, central Western Ghats, India

Published online by Cambridge University Press:  17 September 2003

S.V. Krishnamurthy
Affiliation:
Department of Post Graduate Studies and Research in Environmental Science, Kuvempu University, Jnana Sahyadri, Shankaraghatta 577 451, Karnataka State, India

Abstract

Human activities have fragmented amphibian habitats and affected amphibian diversity and distribution, but the ecology is poorly known. A four-year study assessed the diversity and distribution of amphibians in undisturbed and disturbed sites of the Kudremukh National Park (KNP), India. Iron-ore mining and associated activities in the KNP have induced habitat fragmentation. The disturbed sites had ranges of habitat variables clearly distinguishable from undisturbed sites. Thirty-six species of anurans and six species of caecilians have been recorded in the KNP and the total amphibian species richness represents 20% of the whole Indian amphibian fauna. Among these, 20 species were distributed in both disturbed and undisturbed sites, while 22 were found only in undisturbed sites indicating they may be threatened by further habitat fragmentation. Species diversity and richness formed two distinct groups clearly associated with disturbed and undisturbed habitats, respectively.

Type
Paper
Copyright
© 2003 Foundation for Environmental Conservation

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