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Personality trait differences between mainland and island populations in the common frog (Rana temporaria)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Population and Conservation Biology. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2013 (English)In: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 67, no 1, 135-143 p.Article in journal (Refereed) Published
Abstract [en]

Understanding and predicting species range expansions is an important challenge in modern ecology because of rapidly changing environments. Recent studies have revealed that consistent within-species variation in behavior (i.e., animal personality) can be imperative for dispersal success, a key process in range expansion. Here we investigate how habitat isolation can mediate differentiation of personality traits between recently founded island populations and the main population. We performed laboratory studies of boldness and exploration across life stages (tadpoles and froglets) using four isolated island populations and four mainland populations of the common frog (Rana temporaria). Both tadpoles and froglets from isolated populations were bolder and more exploratory than conspecifics from the mainland. Although the pattern can be influenced by possible differences in predation pressure, we suggest that this behavioral differentiation might be the result of a disperser-dependent founder effect brought on by an isolation-driven environmental filtering of animal personalities. These findings can have important implications for both species persistence in the face of climate change (i.e., range expansions) and ecological invasions as well as for explaining rapid speciation in isolated patches.

Place, publisher, year, edition, pages
2013. Vol. 67, no 1, 135-143 p.
Keyword [en]
Range expansion, Animal personality, Colonization, Dispersal, Boldness
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-193503DOI: 10.1007/s00265-012-1433-1ISI: 000313060500013OAI: oai:DiVA.org:uu-193503DiVA: diva2:603074
Available from: 2013-02-05 Created: 2013-02-04 Last updated: 2016-04-21Bibliographically approved

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