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Evolution of advertisement calls in African clawed frogs

Evolution of advertisement calls in African clawed frogs Evolution of advertisement calls in African clawed frogs Martha L. Tobias 1,4) , Ben J. Evans 2,3) & Darcy B. Kelley 1,2) ( 1 Department of Biological Sciences, Columbia University, New York, NY, USA; 2 Department of Ecology, Evolutionary and Environmental Biology, Columbia University, New York, NY, USA; 3 Department of Biology, McMaster University, Hamilton, ON, Canada) (Accepted: 23 March 2011) Summary For most frogs, advertisement calls are essential for reproductive success, conveying infor- mation on species identity, male quality, sexual state and location. While the evolutionary divergence of call characters has been examined in a number of species, the relative impacts of genetic drift or natural and sexual selection remain unclear. Insights into the evolutionary trajectory of vocal signals can be gained by examining how advertisement calls vary in a phylogenetic context. Evolution by genetic drift would be supported if more closely related species express more similar songs. Conversely, a poor correlation between evolutionary his- tory and song expression would suggest evolution shaped by natural or sexual selection. Here, we measure seven song characters in 20 described and two undescribed species of African clawed frogs (genera Xenopus and Silurana ) and four populations of X. laevis. We http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Evolution of advertisement calls in African clawed frogs

Tobias, Martha; Evans, Ben J.; Kelley, Darcy B.
Behaviour , Volume 148 (4): 519 – Jan 1, 2011
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References (78)

Publisher
Brill
Copyright
© 2011 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/000579511X569435
Publisher site
See Article on Publisher Site

Abstract

Evolution of advertisement calls in African clawed frogs Martha L. Tobias 1,4) , Ben J. Evans 2,3) & Darcy B. Kelley 1,2) ( 1 Department of Biological Sciences, Columbia University, New York, NY, USA; 2 Department of Ecology, Evolutionary and Environmental Biology, Columbia University, New York, NY, USA; 3 Department of Biology, McMaster University, Hamilton, ON, Canada) (Accepted: 23 March 2011) Summary For most frogs, advertisement calls are essential for reproductive success, conveying infor- mation on species identity, male quality, sexual state and location. While the evolutionary divergence of call characters has been examined in a number of species, the relative impacts of genetic drift or natural and sexual selection remain unclear. Insights into the evolutionary trajectory of vocal signals can be gained by examining how advertisement calls vary in a phylogenetic context. Evolution by genetic drift would be supported if more closely related species express more similar songs. Conversely, a poor correlation between evolutionary his- tory and song expression would suggest evolution shaped by natural or sexual selection. Here, we measure seven song characters in 20 described and two undescribed species of African clawed frogs (genera Xenopus and Silurana ) and four populations of X. laevis. We

Journal

Behaviour – Brill

Published: Jan 1, 2011

Keywords: VOCAL BEHAVIOUR; CALL TYPES; SILURANA; PHYLOGENETIC SIGNAL; XENOPUS

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