著者
小池 伸介 羽澄 俊裕 古林 賢恒
出版者
「野生生物と社会」学会
雑誌
野生生物保護 (ISSN:13418777)
巻号頁・発行日
vol.8, no.1, pp.19-30, 2003-02-21 (Released:2017-10-18)
参考文献数
44
被引用文献数
1

The authors studied the likelihood that seeds were being dispersed by the Japanese black bear (Ursus thibetanus japonicus) in a deciduous forest near Ashikawa Village, Yamanashi Prefecture. The forest was composed of 113 tree species. Japanese black bear ate fruits and seeds belonging to 37 species (including 7 unidentified). About 86.7 to 99.7% of seeds identified in 360 samples of bear feces were in good condition for 17 species (10 drupes, 5 berries, 1 multiple fruit of droplets and 1 pome). However, no intact seeds were found for 5 nut species. The germination rate of Yamasakura (Prunus jamasakura) seeds taken from feces was the same as for uneaten seeds. The results of this investigation suggest a high likelihood of seed dispersal by the Japanese black bear.

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