EVALUATION OF THE HABITAT DISTRIBUTION OF RAPTORIAL BIRDS IN UPSTREAM BASIN BY SATELLITE REMOTE SENSING

摘要

Raptorial birds are rapidly decreasing in the upstream river basin and only the few habitats are remained in Japan. In order to environmental protection of Raptorial birds, nesting place study of distribution of Raptorial birds began from 1994. As result of long time fieldwork, we recognized the some conditions, which were necessary in the nesting place of theme. The necessary conditions are follows, there is a forest of quercus, serrata, cedar, and Japanese red pine over the 15m height, and then, the shape of the village is complicated, distance from bait field, slope in the valley etc. The object of this study is to identify the platform where the nesting of Raptorial birds is possible using satellite remote sensing data.