Comments on population monitoring of the brown bear and the Asiatic black bear in Japan

Abstract

It is important to develop monitoring methods of population trends for the brown bear (Ursus arctos) and the Asiatic black bear (U. thibetanus) in Japan. If we could evaluate population trends exactly, we could also estimate population sizes using population dynamics models with harvest data. The problem to be solved is the large-scale management of bear populations distributed over multiple prefectures.