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Anisogamy, chance and the evolution of sex roles
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal Ecology.
2012 (English)In: Trends in Ecology & Evolution, ISSN 0169-5347, E-ISSN 1872-8383, Vol. 27, no 5, 260-264 p.Article in journal (Refereed) Published
Abstract [en]

Recently, several authors have challenged the view that anisogamy, the defining feature of the sexes, is an important determinant of the evolution of sex roles. Sex roles are instead suggested to result from chance, or from non-heritable differences in life histories of females and males. Here, we take issue with these ideas. We note that random processes alone cannot cause consistent differences between the sexes, and that those differences between the sexes in life histories that affect the sex roles are themselves the result of sex-specific selection that can ultimately be traced back to anisogamy. To understand sex roles, one should ask how environmental variation and female male coevolution cause variation in sex-specific selection in the light of anisogamy.

Place, publisher, year, edition, pages
2012. Vol. 27, no 5, 260-264 p.
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-174924DOI: 10.1016/j.tree.2011.12.006ISI: 000303695900005OAI: oai:DiVA.org:uu-174924DiVA: diva2:529484
Available from: 2012-05-30 Created: 2012-05-30 Last updated: 2012-05-30Bibliographically approved

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Arnqvist, Göran
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