Acta Zoologica Cracoviensia, 18() 1973
Numerical comparison of Vespertilionidae and Rhinolophidae (Chiroptera: Mammalia) in the owl pellets
Abstract:
The present study is based totally on the literature. It covers the part of Europe within the range of Rhinolophidae. Among 707 bats consumed by the owls 692 were Vespertilionidae and only 15 belonged to Rhinolophidae. The cause for such a great disproportion may be the much faster escape reaction in Rhinolophidae, their echolocation, which reaches several times as far as that of Vespertilionidae, and the fact that their smell may be repellent to the owls.
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