Information Services banner Edinburgh Research Archive The University of Edinburgh crest

Edinburgh Research Archive >
Biological Sciences, School of >
Biological Sciences publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1842/463

This item has been viewed 259 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
1685.pdfArticle text5.47 MBAdobe PDFView/Open
1.pdfSupplementary data221.05 kBAdobe PDFView/Open
Title: Constraints in the Evolution of Sex Ratio Adjustment
Authors: West, Stuart A
Sheldon, Ben C
Issue Date: 2002
Citation: Science, Vol 295, Issue 5560, 1685-1688, 1 March 2002
Publisher: AMER ASSOC ADVANCEMENT SCIENCE, WASHINGTON
Abstract: When 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.
URI: http://www.sciencemag.org/cgi/content/full/295/5560/1685
[DOI: 10.1126/science.1069043]
http://hdl.handle.net/1842/463
ISSN: 0036-8075
Appears in Collections:Biological Sciences publications

Items in ERA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Unless explicitly stated otherwise, all material is copyright © The University of Edinburgh 2013, and/or the original authors. Privacy and Cookies Policy