• Korean Journal of Ecology and Environment
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• v.47 no.1
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• pp.41-52
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• 2014

Little is known about foraging and roosting habitat of tree-roosting bats in Korea. In the present study, we studied on characteristics of foraging and roosting habitats by Ikonnikov's whiskered bats (Myotis ikonnikovi) in the South Korea, using trapping and radiotelemetry. We captured the bats at 15 sites during nights (foraging times) using mist-nets. Based on characteristic analyses of forests within a radius 500 m from each capture site, forests of M. ikonnikovi habitat are similar characteristics to the old-growth forests. They foraged at forests dominated by boradleaf stands which are older than than 30-year-old and thicker than 20 cm in diameter at breast height (DBH). We used radio-transmitters to locate and characterize day-roosts of Myotis ikonnikovi, and totally the roost use patterns of three bats were surveyed. They roosted in trees (both live and dead) with exfoliating bark, extensive vertical cracks, or cavities, and thier roosting sites were located about 500 m from the initial capture location. The bats had a number of roost in a short-distance, some used new roost every day and the same roost sometimes were used repeatedly. To increase the diversity of the tree-dwelling bats including Myotis ikonnikovi, management practices that the higher food and roost availablility can be sustained in forests are needed.