The Current Distribution and Habitat Preferences of Hibernating Myotis formosus in Korea
2009
Kim, S.S., Kyung Hee University, Seoul, Republic of Korea | Choi, Y.S., Kyung Hee University, Seoul, Republic of Korea | Kim, B.H., Kangwon National University, Chuncheon, Republic of Korea | Yoo, J.C., Kyung Hee University, Seoul, Republic of Korea
We monitored 38 hibernation sites of Myotis formosus in South Korea and recorded the number of bats occupying each site and assessed the micro-climate at the sites during four winters from 2005 to 2009 at. The mean rock temperature of the bat roosting sites was 13.2±1.4℃ and the mean body temperature of the hibernating bats was 13.3±1.3℃. The number of hibernating bats was negatively related to the size of the entrance and positively related to the minimum ambient temperature and humidity in the site interior. More bats hibernated in roosts with smaller entrances and higher minimum ambient temperatures, and more bats selected sites presenting a narrow temperature range. This study showed that the internal environments of hibernacula of M. formosus were highly stable despite dramatic variation in the external environment.
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