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Personality-dependent dispersal cancelled under predation risk
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2013 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 280, no 1773, 20132349- p.Article in journal (Refereed) Published
Abstract [en]

Dispersal is a fundamental life-history trait for many ecological processes. Recent studies suggest that dispersers, in comparison to residents, display various phenotypic specializations increasing their dispersal inclination or success. Among them, dispersers are believed to be consistently more bold, exploratory, asocial or aggressive than residents. These links between behavioural types and dispersal should vary with the cause of dispersal. However, with the exception of one study, personality-dependent dispersal has not been studied in contrasting environments. Here, we used mosquitofish (Gambusia affinis) to test whether personality-dependent dispersal varies with predation risk, a factor that should induce boldness or sociability-dependent dispersal. Corroborating previous studies, we found that dispersing mosquitofish are less social than non-dispersing fish when there was no predation risk. However, personality-dependent dispersal is negated under predation risk, dispersers having similar personality types to residents. Our results suggest that adaptive dispersal decisions could commonly depend on interactions between phenotypes and ecological contexts.

Place, publisher, year, edition, pages
2013. Vol. 280, no 1773, 20132349- p.
Keyword [en]
behavioural syndrome, behavioural type, boldness, ecological invasion, predator-prey interaction, sociability
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URN: urn:nbn:se:umu:diva-83671DOI: 10.1098/rspb.2013.2349ISI: 000330325600015PubMedID: 24197414OAI: diva2:671087
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2014-04-24Bibliographically approved

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Brodin, Tomas
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Department of Ecology and Environmental Sciences
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