Sunday, January 10, 2010

New Light Shed On the Influence of Habitat Variables on the Distribution of Tadpoles of Nyctibatrachus major

Recent studies by K.G Girish and S.V Krishnamurthy of the Department of Environmental Science, Kuvempu University, Shimoga have found that the distribution of tadpoles and adults of the Large Wrinkled Frog, Niyctibatrachus major were influenced by canopy cover, Tree density near streams, leaf litter and humidity. Tadpoles were not found in streams were the soil, air and water temperature were high whereas tadpoles were found in streams were the canopy cover, tree density, leaf litter and humidity were high. The canopy cover, tree density and leaf litter reduced the light intensity and increased humidity providing the necessary temperature for the development of individuals. This study shows the importance of good forest cover for the development of tadpoles. Increased deforestation, timber extraction and stream modification may effect the population of this endemic frog. The IUCN has listed this species as vulnerable and if the present rate of deforestation continues, this species may well be on its way to extinction. It is by such studies that we can understand the complex relationship that a species has with its environment.

I sincerely congratulate and thank K.G Girish for sharing his findings with me and i wish him all the success in his quest to study and conserve amphibian.

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