Change search
ReferencesLink to record
Permanent link

Direct link
Personality traits and dispersal tendency in the invasive mosquitofish (Gambusia affinis)
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Show others and affiliations
2010 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 277, no 1687, 1571-1579 p.Article in journal (Refereed) Published
Abstract [en]

Ecological invasions, where non-native species spread to new areas, grow to high densities and have large, negative impacts on ecological communities, are a major worldwide problem. Recent studies suggest that one of the key mechanisms influencing invasion dynamics is personality-dependent dispersal: the tendency for dispersers to have a different personality type than the average from a source population. We examined this possibility in the invasive mosquitofish (Gambusia affinis). We measured individual tendencies to disperse in experimental streams and several personality traits: sociability, boldness, activity and exploration tendency before and three weeks after dispersal. We found that mosquitofish display consistent behavioural tendencies over time, and significant positive correlations between all personality traits. Most notably, sociability was an important indicator of dispersal distance, with more asocial individuals dispersing further, suggesting personality-biased dispersal on an invasion front. These results could have important ecological implications, as invasion by a biased subset of individuals is likely to have different ecological impacts than invasion by a random group of colonists.

Place, publisher, year, edition, pages
2010. Vol. 277, no 1687, 1571-1579 p.
URN: urn:nbn:se:umu:diva-40363DOI: 10.1098/rspb.2009.2128OAI: diva2:399437
Available from: 2011-02-22 Created: 2011-02-22 Last updated: 2011-02-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Brodin, Tomas
By organisation
Department of Ecology and Environmental Sciences
In the same journal
Proceedings of the Royal Society of London. Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 47 hits
ReferencesLink to record
Permanent link

Direct link