We are pleased to announce the publication of the following article:
Bowles, A.E., D.M. Grebner, W.B. Musser, J.S. Nash, and J.L. Crance.
2015. Disproportionate emission of bubble streams with killer whale
biphonic calls:
perspectives on production and function. JASA Express Letters
137(2): EL165-170.
Abstract:
Stereotyped pulsed calls were
attributed to 11 killer whales
(Orcinus
orca) with and without
synchronous bubble streams in three
datasets collected from two facilities from 1993 to 2012. Calls with and
without synchronous bubble streams and divergent overlapping high
frequency components (?biphonic? vs ?monophonic?) were compared.
Subjects produced bubbles significantly more often when calls had
divergent
high frequency components. However, acoustic features in one biphonic
call shared by five subjects provided little evidence for an
acoustic effect of synchronous bubble flow. Disproportionate bubbling
supported other evidence that biphonic calls form a distinct
category,
but suggested a function in short-range communication.
Ann E. Bowles, PhD
Hubbs-SeaWorld Research Institute
abowles@hswri.org
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Ann E. Bowles, PhD |
Program Leader, Bioacoustics
Hubbs-SeaWorld Research Institute
2595 Ingraham
Street | San Diego | CA 92109
Phone: (619) 226-3870 | Fax: (619) 226-3944
abowles@hswri.org |
www.hswri.org
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