Eavesdropping by bats on the feeding buzzes of conspecifics

摘要: Echolocation calls of most bats are emitted at high intensities and subject to eavesdropping by nearby conspecifics. Bats may be especially attentive “feeding buzz” calls, which immediately before attack on airborne insects indicate the potential presence prey in area. Although previous work has shown that some species attracted feeding buzzes, these studies did not provide a well-controlled test eavesdropping, as comparisons were made between responses natural altered signals (e.g., forward versus backward broadcasts calls). In this study, I assessed importance buzzes conducting playbacks controlled echolocation stimuli. presented free-flying Brazilian free-tailed bats, Tadarida brasiliensis (I. Geoffroy, 1824), with call sequences buzz either present or absent, well silence control. determined levels bat activity counting number passes rec...