Affiliation: | Center for Ecological Research, Kyoto University, Otsu, Shiga 520-2113, Japan,;Research Institute for Humanity and Nature, Kyoto 603-8047, Japan,;Biological Laboratory, Osaka Gakuin University, Suita, Osaka 564-8511, Japan and;Faculty of Engineering, Hokkai-Gakuen University, Sapporo, Hokkaido 062-8605, Japan |