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Phenotypic evolution of dispersal-enhancing traits in insular voles
Linnaeus University, Faculty of Science and Engineering, School of Natural Sciences.ORCID iD: 0000-0001-9598-7618
University of Helsinki.
Swedish Biodiversity Centre.
2011 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 278, no 1703, p. 225-232Article in journal (Refereed) Published
Abstract [en]

Evolutionary theory predicts that in metapopulations subject to rapid extinction-recolonization dynamics, natural selection should favour evolution of traits that enhance dispersal and recolonization ability. Metapopulations of field voles (Microtus agrestis) on islands in the Stockholm archipelago, Sweden, are characterized by frequent local extinction and recolonization of subpopulations. Here, we show that voles on the islands were larger and had longer feet than expected for their body size, compared with voles from the mainland; that body size and size-specific foot length increased with increasing geographical isolation and distance from mainland; and that the differences in body size and size-specific foot length were genetically based. These findings provide rare evidence for relatively recent (less than 1000 years) and rapid (corresponding to 100-250 darwins) evolution of traits facilitating dispersal and recolonization in island metapopulations.

Place, publisher, year, edition, pages
2011. Vol. 278, no 1703, p. 225-232
Keywords [en]
dispersal, island populations, Microtus agrestis, evolution
National Category
Biological Sciences Ecology
Research subject
Natural Science, Evolutionary Biology; Natural Science
Identifiers
URN: urn:nbn:se:lnu:diva-7070DOI: 10.1098/rspb.2010.1325Scopus ID: 2-s2.0-78650481091OAI: oai:DiVA.org:lnu-7070DiVA, id: diva2:337930
Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Forsman, Anders

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