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Generation-dependent female choice: behavioral polyphenism in a bivoltine butterfly
Stockholm University, Faculty of Science, Department of Zoology. Evolutionär ekologi.
Stockholm University, Faculty of Science, Department of Zoology. Evolutionär ekologi.ORCID iD: 0000-0003-4719-487X
2007 (English)In: Behavioral Ecology, ISSN 1045-2249, Vol. 18, no 4, 758-763 p.Article in journal (Refereed) Published
Abstract [en]

Climatic and biotic circumstances vary as seasons shift, and different cohorts of multivoltine species are likely subjected to different selection regimes. The bivoltine butterfly Leptidea reali (Re´al’s wood white; Lepidoptera: Pieridae) appears during May and June in central Sweden and has a partial second generation in late July. We manipulated both generations to appear simultaneously and performed laboratory mating experiments that showed the presence of a behavioral polyphenism in mating propensity, which is induced during the developmental stages. Females of the summer generation expressed higher mating propensities than spring generation females. Spring females showed an increase in mating propensity with increasing age, whereas summer females accepted most matings already when they were only 1 or 2 days old. It is likely that larval time constraints, a lower abundance of males and a lower risk of accepting a male of their univoltine sister species Leptidea sinapis (wood white), have relaxed selection on mate discrimination among summer generation females. A major challenge for future research is to further investigate the developmental pathways causing the polyphenism and the adaptive implications of cohort dependent behaviors.

Place, publisher, year, edition, pages
2007. Vol. 18, no 4, 758-763 p.
Keyword [en]
"developmental plasticity", " Lepidoptera: Pieridae", "mating propensity", "population density", "sexual selection", "time constraints"
National Category
Developmental Biology Ecology Ecology
URN: urn:nbn:se:su:diva-19828DOI: doi:10.1093/beheco/arm037ISI: 000248224100018OAI: diva2:186352
Available from: 2007-11-18 Created: 2007-11-18 Last updated: 2014-10-13Bibliographically approved

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Friberg, MagneWiklund, Christer
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