human activities have caused a long-term dietary shift in bb

[warsaw]

Summary Brown bears are opportunistic omnivores that flexibly change their feeding habits depending on the availability of dietary resources. A research team led by Jun Matsubayashi, a student at the Graduate School of Science, Kyoto University, and a Center Research Associate at the Research Institute for Humanity and Nature; Associate Professor Junko Morimoto of the Laboratory of Forest Ecosystem Management, Graduate School of Agriculture, Hokkaido University; and Professor Ichiro Tayasu of the Research Institute for Humanity and Nature, measured carbon, nitrogen, and sulfur stable isotope ratios of bone collagen of brown bears in the Hokkaido Islands of Japan, and presented a historical record of major alterations in their feeding habits. Hokkaido brown bears used to feed on animal matter such as salmon and deer, whereas modern bears depend on plant matter like herbs and fruits. These dietary shifts probably occurred in the last approximately 100-200 years, which coincides with the beginning of modernization in this region. - See more at: www.noodls.com/view/C1DA9457DC11445D88197ED92FDB0601918C9DEB?7371xxx1428983196#sthash.5JWzNUrP.dpuf


www.kyoto-u.ac.jp/en/research/research_results/2014/documents/150327_1/02.pdf