Differentiating Western Australian Nyctophilus (Chiroptera: Vespertilionidae) echolocation calls

RD Bullen, NL McKenzie
2001 Australian Mammalogy  
Bullen RD and McKenzie NL, 2002. Differentiating Western Australian Nyctophilus (Chiroptera: Vespertilionidae) echolocation calls. Australian Mammalogy 23: 89-93. The ultrasound calls of the six species of Nyctophilus bat in Western Australia can be differentiated using power spectral analysis. Their search-mode call sequences show distinctive trends of variation in peak-frequency (F peak ) values call-to-call. These differences are too subtle to be separated in amplitude-time domain with the
more » ... e domain with the processing tools currently available. The call-to-call variations in F peak through time can be characterised from the call sequence recordings using Fourier analysis if care is taken to select genuine search-mode sequences. These variations can then be used to correctly identify the species emitting the call.
doi:10.1071/am01089 fatcat:jggo3bzknbam5pyj3zqzf2tmla