Ecology and taxonomy-driven deviations in the frog call-body size relationship across the diverse Australian frog fauna

Hoskin, CJ, James, S and Grigg, GC (2009) Ecology and taxonomy-driven deviations in the frog call-body size relationship across the diverse Australian frog fauna. Journal of Zoology, 278 1: 36-41. doi:10.1111/j.1469-7998.2009.00550.x


Author Hoskin, CJ
James, S
Grigg, GC
Title Ecology and taxonomy-driven deviations in the frog call-body size relationship across the diverse Australian frog fauna
Journal name Journal of Zoology   Check publisher's open access policy
ISSN 1469-7998
0952-8369
Publication date 2009-05-01
Sub-type Article (original research)
DOI 10.1111/j.1469-7998.2009.00550.x
Open Access Status
Volume 278
Issue 1
Start page 36
End page 41
Total pages 6
Editor Nigel Bennett
Place of publication UK
Publisher Wiley-Blackwell Publishing
Language eng
Subject C1
9608 Flora, Fauna and Biodiversity
060809 Vertebrate Biology
Abstract Relationships between some properties of frog calls and body size are widely recognized. However, generality across call components and diverse faunas, and sources of deviation, remain poorly tested. Using 116 east Australian frog species, we tested the relationship between three call traits and body size, and the effects of taxonomic family and calling habitat. Call dominant frequency (DF) has a highly significant negative relationship with size, whereas call duration and pulse rate do not. Frog families show the same slope of relationship between DF and size, but hylids call at significantly higher frequency relative to size. Within hylids, stream breeders call at significantly lower DF than pool breeders of comparable size – below the DF of stream noise in typical breeding habitat – a shift likely to enhance signal detection against background environmental noise. This contrasts with all previous observations from other regions that frogs call at high (even ultrasonic) frequency to avoid masking by stream noise.
Keyword frog call
body size
signal evolution
environmental noise
dominant frequency
stream habitat
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biological Sciences Publications
 
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Created: Thu, 03 Sep 2009, 18:15:46 EST by Mr Andrew Martlew on behalf of School of Biological Sciences