ユビナガコウモリの帰巣能力,特に帰巣性に及ぼす成熟の効果

概要

論文の詳細を見る
Studies on the homing ability of <I>Miniopterus schreibersi fuliginosus</I> were carried out at caves on the Akiyoshi-dai Plateau, Yamaguchi Prefecture. As for the adult, 152 bats were released at 14 points of Honshu and Kyushu in distance from 9 to 230km. Homing performances were recorded from 13 points. In either case of Honshu and Kyushu, homing percentages tended to decrease with increase of distance from the released points. Homing performances from Kyushu separated by sea, however, were not so high as those from Honshu. On the other hand, 67 immature bats were released at 6 points of Honshu in distance from 18 to 195km. In this case, bats returned only from points within 45km regarded as a radius of the familiar area on the basis of the banding data. Accordingly, these homing experiments revealed that the homing ability of the bat was affected by maturity.
日本哺乳類学会の論文