Stomach contents of brown bears Ursus arctos in Hokkaido, Japan
作者： Yoshikazu Sato , Tsutomu Mano , Seiki Takatsuki
DOI: 10.2981/0909-6396(2005)11[133:SCOBBU]2.0.CO;2
关键词: Animal science 、 Late summer 、 Crop 、 Economic shortage 、 Nuisance 、 Ursus 、 Ecology 、 Cervus nippon yesoensis 、 Biology 、 Herbaceous plant 、 Food habits 、 Ecology, Evolution, Behavior and Systematics 、 Management, Monitoring, Policy and Law 、 Nature and Landscape Conservation
摘要: Abstract We determined the seasonal food habits of brown bears Ursus arctos in three regions Hokkaido, Japan, over eight years (1991–1998) by analysing stomach contents 556 killed for nuisance control or sport hunting. Seasonally dominant items changed from herbaceous plants (61–80% volume) spring, to (53–97% and ants (0–18% early summer, crops (32–46% (26–31% late berries (25–39% volume), acorns nuts (8-16% autumn. These diet shifts were consistent among investigated regions. Crop depredation summer occurred extensively Hokkaido was probably driven a shortage alternative sources during this season. The proportion sika deer Cervus nippon yesoensis increased 1990s eastern (25.2% frequency), where consumed throughout year. Bears acquired mea...
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