Adult sex ratio variation: Implications for breeding system evolution

T. Székely, F. J. Weissing, J. Komdeur

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75 Citations (Scopus)

Abstract

Adult sex ratio (ASR) exhibits immense variation in nature, although neither the causes nor the implications of this variation are fully understood. According to theory, the ASR is expected to influence sex roles and breeding systems, as the rarer sex in the population has more potential partners to mate with than the more common sex. Changes in mate choice, mating systems and parental care suggest that the ASR does influence breeding behaviour, although there is a need for more tests, especially experimental ones. In the context of breeding system evolution, the focus is currently on operational sex ratios (OSRs). We argue that the ASR plays a role of similar importance and urge researchers to study the ASR and the OSR side by side. Finally, we plead for a dynamic view of breeding system evolution with feedbacks between mating, parenting, OSR and ASR on both ecological and evolutionary time scales.
LanguageEnglish
Pages1500-1512
Number of pages13
JournalJournal of Evolutionary Biology
Volume27
Issue number8
Early online date22 May 2014
DOIs
StatusPublished - 1 Aug 2014

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reproductive strategy
sex ratio
breeding
gender
sex role
parenting
reproductive behavior
parental care
mate choice
mating behavior
mating systems
researchers
timescale

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Adult sex ratio variation : Implications for breeding system evolution. / Székely, T.; Weissing, F. J.; Komdeur, J.

In: Journal of Evolutionary Biology, Vol. 27, No. 8, 01.08.2014, p. 1500-1512.

Research output: Contribution to journalArticle

Székely, T. ; Weissing, F. J. ; Komdeur, J. / Adult sex ratio variation : Implications for breeding system evolution. In: Journal of Evolutionary Biology. 2014 ; Vol. 27, No. 8. pp. 1500-1512.
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