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Hind wing shape evolves faster than front wing shape in Calopteryx damselflies
Biología de Organismos y Sistemas, University of Oviedo.
Department of Ecology and Environmental Science, Umeå University.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Population and Conservation Biology.
2012 (English)In: Evolutionary biology, ISSN 0071-3260, E-ISSN 1934-2845, Vol. 39, no 1, 116-125 p.Article in journal (Refereed) Published
Abstract [en]

Wing shape has been shown in a variety of species to be influenced by natural and sexual selection. In damselflies, front- and hind wings can beat independently, and functional differentiation may occur. Males of Calopteryx damselflies show species-specific nuptial flights that differ in colour signalling with the hind wings. Therefore, hind wing shape and colour may evolve in concert to improve colour display, independent of the front wings. We predicted that male hind wing shape evolves faster than front wing shape, due to sexual selection. Females do not engage in sexual displays, so we predicted that females do not show differences in divergence between front- and hind wing shape. We analysed the nonallometric component of wing shape of five European Calopteryx taxa using geometric morphometrics. We found a higher evolutionary divergence of hind wing shape in both sexes. Indeed, we found no significant differences in rate of evolution between the sexes, despite clear sexspecific differences in wing shape. We suggest that evolution of hind wing shape in males is accelerated by sexual selection on pre-copulatory displays and that this acceleration is reflected in females due to genetic correlations that somehow link the rates of wing shape evolution in the two sexes, but not the wing shapes themselves.

Place, publisher, year, edition, pages
2012. Vol. 39, no 1, 116-125 p.
Keyword [en]
Evolutionary divergence, functional differentiation, geometric morphometrics, phylogeny, sexual selection
National Category
Evolutionary Biology
URN: urn:nbn:se:uu:diva-168709DOI: 10.1007/s11692-011-9145-4ISI: 000300579700010OAI: oai:DiVA.org:uu-168709DiVA: diva2:503249
Available from: 2012-02-15 Created: 2012-02-15 Last updated: 2012-03-21Bibliographically approved

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