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Rethinking birdsong evolution : meta-analysis of the relationship between song complexity and reproductive success

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Title: Rethinking birdsong evolution : meta-analysis of the relationship between song complexity and reproductive success
Authors: Soma, Masayo Browse this author →KAKEN DB
Zsolt Garamszegi, László Browse this author
Keywords: extrapair paternity
female choice
repertoire size
sexual selection
trait expression
Issue Date: Mar-2011
Publisher: Oxford University Press
Journal Title: Behavioral Ecology
Volume: 22
Issue: 2
Start Page: 363
End Page: 371
Publisher DOI: 10.1093/beheco/arq219
Abstract: The theory of sexual selection predicts a relationship between male sexual traits and reproductive success. This prediction has been tested extensively using the complexity of birdsong as a model for trait elaboration. However, contradictory results have emerged. Some studies have demonstrated that males with large repertoires enjoy a reproductive advantage, while other studies have failed to support this prediction. To make general inferences from this mixed evidence, we quantitatively reviewed the relevant literature using a meta-analytic approach. The mean effect size for the song/mating success association was significant, but the effects were generally weak, affected by publication bias, confounded by uncontrolled variables, and differing across the traits examined. Effect sizes were heterogeneous across studies due to species-specific effects, differences in mating systems and song phenotypes. The degree of association between song complexity and reproductive success was independent of the strength of sexual selection, as assessed by the degree of polygyny and extra-pair paternity. Our results highlight the importance of considering various biological factors to understand the role of repertoires in mediating mating success in different species.
Rights: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Behavioral Ecology following peer review. The definitive publisher-authenticated version Behavioral Ecology (2011) 22 (2): 363-371 is available online at:
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 相馬 雅代

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