数種のコウモリの観察知見

概要

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This report is the results of an inquiry of Chiroptera-Fauna from 1957 to 1961. There are two families, seven genera, ten species and subspecies of bats in Niigata pref. The following is a description of the observation on strange habitats and habits of the four species of bats, Miniopterus schreibersii fuliginosus HODGSON, Myotis macrodactylus TEMMINCK, Rhinolophus cornutus cornutus TEMMINCK and R. ferrum-equinumn mikadoi OGNEV, in Shojo Cave etc. The Myotis hangs down in the same manner as other bats do. However most of the Myotis are delivered of young and bring it up alone or in a colony in a crevice or gap in the cave. When different species form a colony, they always show the following relations in number of individuals Miniopterus> Myotis, Miniopterus<R. cornutus, Miniopterus<R. cornutus>Myotis. So I think that this condition is necessary to maintain a colony, and in this case, there are various terms of habits and habitats (shade, humidity, etc. also fluence the existance of a colony) . I do not believe that competition, commensalism or amensalism, and predation exist in the colony.
日本哺乳類学会の論文