Diversity and Abundance of Bats within the Human-Dominated Transitional Zone of Similipal Biosphere Reserve, India: Implications for Conservation

Species richness, diversity and abundance of bat fauna in Similipal Biosphere Reserve were studied during 2013–2015. Bats were surveyed by exploring the roosting sites and mist netting for 288 nights in primary forest, degraded forest, agricultural land and human habitation. A total of 21 species representing three species of frugivore bats and 18 species of insectivorous bats in seven families were recorded during the study, of which 152 individuals in 13 species were captured in mist nets. Species diversity and capture rate were recorded higher in primary forest. Vespertilionidae was reported as the most diverse family with five species, and Rhinolophus lepidus was reported to be the most abundant species with maximum capture rate during the study. As Similipal Biosphere Reserve is experiencing severe biotic pressure, it can be predicted that the structure and composition of bat fauna may be affected. The authors expect that their findings will be useful for future comparative studies to monitor the change over time and develop conservation plans.