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Article: Sexual selection and condition-dependence

TitleSexual selection and condition-dependence
Authors
KeywordsOrnaments
Signalling
Allometry
Exaggeration
Handicap principle
Honesty
Issue Date2009
Citation
Journal of Evolutionary Biology, 2009, v. 22, n. 12, p. 2387-2394 How to Cite?
AbstractThe handicap theory of sexual selection suggests that females prefer mates who display extravagant ornaments that advertise their quality or condition. It is often assumed that as such ornamental traits undergo sexually-selected exaggeration, they must inevitably become more sensitive to condition, and thus more informative. Here, we show that this is not necessarily the case. Depending on the precise form of the relationship between trait size and cost, expression may become more or less condition-dependent as the trait undergoes exaggeration, or may remain unchanged. This leads us to question how much of the information content of sexual signals can be attributed to sexual selection, and how much to pre-existing, naturally-selected condition-dependence. © 2009 European Society For Evolutionary Biology.
Persistent Identifierhttp://hdl.handle.net/10722/230843
ISSN
2015 Impact Factor: 2.747
2015 SCImago Journal Rankings: 2.009

 

DC FieldValueLanguage
dc.contributor.authorJohnstone, R. A.-
dc.contributor.authorRands, S. A.-
dc.contributor.authorEvans, M. R.-
dc.date.accessioned2016-09-01T06:06:56Z-
dc.date.available2016-09-01T06:06:56Z-
dc.date.issued2009-
dc.identifier.citationJournal of Evolutionary Biology, 2009, v. 22, n. 12, p. 2387-2394-
dc.identifier.issn1010-061X-
dc.identifier.urihttp://hdl.handle.net/10722/230843-
dc.description.abstractThe handicap theory of sexual selection suggests that females prefer mates who display extravagant ornaments that advertise their quality or condition. It is often assumed that as such ornamental traits undergo sexually-selected exaggeration, they must inevitably become more sensitive to condition, and thus more informative. Here, we show that this is not necessarily the case. Depending on the precise form of the relationship between trait size and cost, expression may become more or less condition-dependent as the trait undergoes exaggeration, or may remain unchanged. This leads us to question how much of the information content of sexual signals can be attributed to sexual selection, and how much to pre-existing, naturally-selected condition-dependence. © 2009 European Society For Evolutionary Biology.-
dc.languageeng-
dc.relation.ispartofJournal of Evolutionary Biology-
dc.subjectOrnaments-
dc.subjectSignalling-
dc.subjectAllometry-
dc.subjectExaggeration-
dc.subjectHandicap principle-
dc.subjectHonesty-
dc.titleSexual selection and condition-dependence-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1420-9101.2009.01822.x-
dc.identifier.pmid19874439-
dc.identifier.scopuseid_2-s2.0-72449198937-
dc.identifier.volume22-
dc.identifier.issue12-
dc.identifier.spage2387-
dc.identifier.epage2394-
dc.identifier.eissn1420-9101-

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