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Ageing and the evolution of female resistance to remating in seed beetles
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
2006 (English)In: Biology Letters, ISSN 1744-9561, E-ISSN 1744-957X, Vol. 2, no 1, 62-64 p.Article in journal (Refereed) Published
Abstract [en]

Female remating behaviour is a key mating system parameter that is predicted to evolve according to the net effect of remating on female fitness. In many taxa, females commonly resist male remating attempts because of the costs of mating. Here, we use replicated populations of the seed beetle Acanthoscelides obtectus selected for either early or late life reproduction and show that 'Early' and 'Late' females evolved different age-specific rates of remating. Early females were more likely to remate with control males as they aged, while Late females were more resistant to remating later in life. Thus, female remating rate decreases with age when direct selection on late-life fitness is operating and increases when such selection is relaxed. Our findings not only demonstrate that female resistance to remating can evolve rapidly, but also that such evolution is in accordance with the genetic interests of females.

Place, publisher, year, edition, pages
2006. Vol. 2, no 1, 62-64 p.
Keyword [en]
sexual conflict, senescence, mating frequency, experimental evolution, polyandry
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-153406DOI: 10.1098/rsbl.2005.0398ISI: 000241958200018PubMedID: 17148327OAI: oai:DiVA.org:uu-153406DiVA: diva2:416684
Available from: 2011-05-12 Created: 2011-05-12 Last updated: 2017-12-11Bibliographically approved

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