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Group stability and homing behavior but no kin group sturcture in a coral reef fish
Uppsala universitet, Zooekologi.ORCID iD: 0000-0001-5791-336X
Uppsala universitet, Zooekologi.
Uppsala universitet, Zooekologi.
Uppsala universitet, Zooekologi.
2005 (English)In: Behavioral Ecology, ISSN 1045-2249, E-ISSN 1465-7279, Vol. 16, no 3, 521-527 p.Article in journal (Refereed) Published
Abstract [en]

Understanding the reasons behind stable group formations has received considerable theoretical and empirical attention. Stable groups displaying homing behavior have been suggested to form as a result of, for instance, benefits from knowledge of the social or physical environment or through kin selection and the forming of kin groups. However, no one has disentangled preference for grouping in a familiar location from preference for grouping with familiar or related individuals. To investigate this, we conducted a series of field experiments and a group genetic analysis on the group-living Banggai cardinalfish (Pterapogon kauderni). We found homing behavior but no evidence for recognition of familiar group members. Instead, homing was based on the original location of their group rather than the individuals in that group. Moreover, we found no evidence for kin structures within these groups. We suggest that benefits from living in a known social environment drive homing behavior in this species and that homing behavior is not enough for the formation of kin group structures. Instead, our results suggest that kin recognition may be a prerequisite for the forming of kin groups.

Place, publisher, year, edition, pages
2005. Vol. 16, no 3, 521-527 p.
Keyword [en]
dispersal, group stability, kin selection, microsatellites, territory
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URN: urn:nbn:se:su:diva-116485DOI: 10.1093/beheco/ari022OAI: diva2:806573
Available from: 2006-03-31 Created: 2015-04-20 Last updated: 2015-04-20

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Kolm, NiclasHoffman, Eric A.Olsson, JensBerglund, Anders
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