| Acoustic radiation patterns of mating calls of the tungara frog: Implications for multiple receivers. | |
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MedLine Citation:
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PMID: 18189753 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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In its simplest form, communication is an interaction between a signaler and a receiver in which the signal has some probabilistic influence on the behavior of the receiver. For communication to proceed, the signal must be detected and perceived by the receiver; that is, the receiver must be within the active space of the signal. If patterns of sound radiation are not omni-directional, the position of the receiver relative to the sender is critical. In previous measurements of the horizontal directivity of mating calls of frogs and toads, the acoustic signals were analyzed using peak or RMS analysis [Gerhardt, J. Comp. Physiol. A 102, 1-12 (1975)] and the resulting broadband directivities ranged from negligible (omnidirectional) to a maximum of about 5 dB. We report new laboratory measurements of both the horizontal and vertical frequency-dependent directivity of the mating calls of tungara frogs (Physalaemus pustulosus). These band-limited directivities are significantly greater than broadband directivities, with a maximum directivity of 20 dB in the vertical plane for harmonics near 6 kHz. Ultrasonic frequencies, recently found in the calls of some frogs, are absent in the mating call of tungara frogs. The implications with regard to mating and predator-prey interactions are discussed. |
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Authors:
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Ximena E Bernal; Rachel A Page; Michael J Ryan; Theodore F Argo; Preston S Wilson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 122 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2007 Nov |
Date Detail:
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Created Date: 2008-01-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 2981 Citation Subset: IM |
Affiliation:
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Section of Integrative Biol., Univ. of Texas, 1 University Station C0930, Austin, TX 78712Univ. of Texas, Austin, TX 78713-8029. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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