調査をおこなっている足尾山塊
The research area, Ashio Mountains.




ツキノワグマを捕獲し、GPS内蔵首輪を装着して再放逐
We capture Asiatic black bears, put GPS collar on them,
release them, and are tracking their movements.




ツキノワグマの餌資源となるミズナラの豊凶を調査
Crop size of Quercus crispula is investigated within home
ranges of black bears.