Amphibian diversity in two different landscapes of Konkan region, northern Western Ghats, India

Abstract

We present the results of our amphibian species inventory surveys conducted in Konkan region, part of the Western Ghats of Maharashtra. In a three-month study period, a total of 18 species of amphibians (17 anurans and one caecilian) belonging to 13 genera and seven families were recorded. Habitats including lateritic plateaus and forest areas were studied for amphibian diversity and population density. Forest habitat supported the maximum species occurrence, whereas the density of amphibians per unit area was found to be the maximum on plateaus. Rare and endemic species were highly influenced by habitat variables like canopy cover, mode of tadpole development, habitat specificity, stream persistence, humidity, threat status, and endemism. Occurrence of endemic and threatened species like Pseudophilautus amboli, Uperodon mormorata, and records of a lesser known caecilian like Gegeneophis seshachari show the importance of this area for conservation prioritization. Anthropogenic threats listed during the study are also discussed. This baseline data will serve as an asset for further monitoring and determining action plans for amphibian conservation in the Konkan region.