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dc.contributor.authorWest, Stuart A
dc.contributor.authorSheldon, Ben C
dc.coverage.spatial4en
dc.date.accessioned2004-04-07T09:14:47Z
dc.date.available2004-04-07T09:14:47Z
dc.date.issued2002
dc.identifier.citationScience, Vol 295, Issue 5560, 1685-1688, 1 March 2002en
dc.identifier.issn0036-8075
dc.identifier.urihttp://www.sciencemag.org/cgi/content/full/295/5560/1685
dc.identifier.uri[DOI: 10.1126/science.1069043]
dc.identifier.urihttp://hdl.handle.net/1842/463
dc.description.abstractWhen the relative fitness of mate and female offspring varies with environmental conditions, evolutionary theory predicts that parents should adjust the sex of their offspring accordingly. Qualitative and even quantitative support for this prediction is striking in some taxa but much less convincing in others. Explaining such variation across taxa in the fit of sex ratio theory remains a major challenge. We use meta-analysis to test the role of two constraints in the evolution of sex ratios. Based on analysis of sex ratio skews in birds and wasps, we show that (i) mechanisms of sex determination do not necessarily constrain the evolution of sex ratio adjustment, and (ii) parental ability to predict their offsprings' environment influences the evolution of sex ratio patterns across taxa. More generally, our results show that multiple constraints may determine the precision of adaptation.en
dc.format.extent5606346 bytes
dc.format.extent226354 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherAMER ASSOC ADVANCEMENT SCIENCE, WASHINGTONen
dc.titleConstraints in the Evolution of Sex Ratio Adjustmenten
dc.typeArticleen


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