Ecological Research

, Volume 21, Issue 2, pp 321–324 | Cite as

Impact of predation by a cave-dwelling bat, Rhinolophus ferrumequinum, on the diapausing population of a troglophilic moth, Goniocraspidum preyeri

Note and Comment

Abstract

The predation pressure of the greater horseshoe bat, Rhinolophus ferrumequinum, on the diapausing population of the noctuid moth, Goniocraspidum preyeri, was examined at an abandoned mine in central Japan. These bats did not prey on the moths in summer. The number of moths preyed on was largest in March. More than 60% of the diapausing moths were eaten by only three or four bats, which accounted for over 90% of all the moth deaths. This moth was an important source of food at the end of the hibernating period when the bat had already used most of its stored subcutaneous fat. The predation on G. preyeri may have raised the overwintering success rate of R. ferrumequinum.

Keywords

Cave bat Troglophilic moth Diapause Predation pressure Hibernation 

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Copyright information

© The Ecological Society of Japan 2005

Authors and Affiliations

  1. 1.Mie Prefectural Science and Technology Promotion Center, Nihongi, HakusanMieJapan

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