Anuran diversity pattern at different land use/land cover types in Lower Dibang Valley of Arunachal Pradesh, India

Jayanta Kumar Roy, Dr. Ramie Husneara Begum, Dr. M. Firoz Ahmed

Abstract


The present study was conducted to estimate the anuran species diversity pattern at Lower Dibang Valley of Arunachal Pradesh, 2015. Time constrained Visual Encounter Survey (VES) was conducted for amphibian survey followed by opportunistic observations during the study period. We compare the species diversity from three different landuse / land cover types describing habitat creation and importance of secondary forest to recolonize anuran species during the course of time. Interestingly, anuran diversity measured from degraded forest /abandoned jhum and primary forest areas were relatively found equal (Shannon index; H: 2.77 and 2.76). Although, we found variation in the encounter of unique anuran species with most from primary forest (N = 8). We found, habitat heterogeneity due to secondary succession created anuran breeding habitats followed by beneficial human interaction in the degraded forest /abandoned jhum areas. Three new distribution record from Arunachal Pradesh: Maculopaa chayuensis, Hydrophylax leptoglossa and Odorrana chloronota and one rare report on Theloderma moloch was recorded after above 100 years.  


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