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The diapause decision as a cascade switch for adaptive developmental plasticity in body mass in a butterfly.
Stockholm University, Faculty of Science, Department of Zoology.ORCID iD: 0000-0002-4560-6271
Stockholm University, Faculty of Science, Department of Zoology.
2010 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 23, no 6, 1129-37 p.Article in journal (Refereed) Published
Abstract [en]

Switch-induced developmental plasticity, such as the diapause decision in insects, is a major form of adaptation to variable environments. As individuals that follow alternative developmental pathways will experience different selective environments the diapause decision may evolve to a cascade switch that induces additional adaptive developmental differences downstream of the diapause decision. Here, we show that individuals following alternative developmental pathways in a Swedish population of the butterfly, Pararge aegeria, display differential optimization of adult body mass as a likely response to predictable differences in thermal conditions during reproduction. In a more northern population where this type of selection is absent no similar difference in adult mass among pathways was found. We conclude that the diapause decision in the southern population appears to act as a cascade switch, coordinating development downstream of the diapause decision, to produce adult phenotypes adapted to the typical thermal conditions of their expected reproductive period

Place, publisher, year, edition, pages
2010. Vol. 23, no 6, 1129-37 p.
Keyword [en]
Lepidoptera, life history theory, modularity, Pararge aegeria, phenotypic plasticity, threshold trait
National Category
Ecology
Identifiers
URN: urn:nbn:se:su:diva-43765DOI: 10.1111/j.1420-9101.2010.01994.xPubMedID: 20456570OAI: oai:DiVA.org:su-43765DiVA: diva2:359350
Funder
Swedish Research Council
Available from: 2010-10-27 Created: 2010-10-27 Last updated: 2017-12-12Bibliographically approved

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