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Both male and female identity influence variation in male signalling effort
Monash University, Australia ; University of Turku, Finland.
Monash University, Australia ; Deakin University, Australia.ORCID iD: 0000-0002-1426-0036
Monash University, Australia.
2011 (English)In: BMC Evolutionary Biology, ISSN 1471-2148, E-ISSN 1471-2148, Vol. 11, 233Article in journal (Refereed) Published
Abstract [en]

Background: Male sexual displays play an important role in sexual selection by affecting reproductive success. However, for such displays to be useful for female mate choice, courtship should vary more among than within individual males. In this regard, a potentially important source of within male variation is adjustment of male courtship effort in response to female traits. Accordingly, we set out to dissect sources of variation in male courtship effort in a fish, the desert goby (Chlamydogobius eremius). We did so by designing an experiment that allowed simultaneous estimation of within and between male variation in courtship, while also assessing the importance of the males and females as sources of courtship variation. Results: Although males adjusted their courtship depending on the identity of the female (a potentially important source of within-male variation), among-male differences were considerably greater. In addition, male courtship effort towards a pair of females was highly repeatable over a short time frame. Conclusion: Despite the plasticity in male courtship effort, courtship displays had the potential to reliably convey information about the male to mate-searching females. Our experiment therefore underscores the importance of addressing the different sources contributing to variation in the expression of sexually-selected traits.

Place, publisher, year, edition, pages
2011. Vol. 11, 233
National Category
Evolutionary Biology Behavioral Sciences Biology
Research subject
Ecology, Aquatic Ecology; Ecology, Evolutionary Biology
Identifiers
URN: urn:nbn:se:lnu:diva-18787DOI: 10.1186/1471-2148-11-233OAI: oai:DiVA.org:lnu-18787DiVA: diva2:527868
Available from: 2012-05-22 Created: 2012-05-22 Last updated: 2016-05-26Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • fi-FI
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  • nn-NB
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