Abstract
Surveys of bats were performed in windbreak forests located in agricultural areas in Obihiro City, Hokkaido, during the summers of 2001 to 2004. A total of 10 bat species, including Myotis macrodactylus, Myotis daubentonii, Myotis gracilis, Myotis frater, Eptesicus nilssonii, Nyctalus aviator, Vespertilio sinensis, Plecotus auritus, Murina hilgendorfi, and Murina ussuriensis were caught using mist nets. These windbreak forests, which were relatively narrow 55-75 meters in width and lacking biodiversity, such as a monoculture of Quercus dentata or planted forests of Larix leptolepis, are unfavorable as habitats for bats for making roosts, supporting breeding colonies, or as feeding grounds. Nevertheless, a number of bat species were caught in these forests, suggesting that these windbreak forests might be used by bats as migration pathways
