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Inferring the rules of interaction of shoaling fish
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics, Analysis and Applied Mathematics.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Mathematics, Analysis and Applied Mathematics.
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2011 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 108, no 46, 18726-18731 p.Article in journal (Refereed) Published
Abstract [en]

Collective motion, where large numbers of individuals move synchronously together, is achieved when individuals adopt interaction rules that determine how they respond to their neighbors' movements and positions. These rules determine how group-living animals move, make decisions, and transmit information between individuals. Nonetheless, few studies have explicitly determined these interaction rules in moving groups, and very little is known about the interaction rules of fish. Here, we identify three key rules for the social interactions of mosquitofish (Gambusia holbrooki): (i) Attraction forces are important in maintaining group cohesion, while we find only weak evidence that fish align with their neighbor's orientation; (ii) repulsion is mediated principally by changes in speed; (iii) although the positions and directions of all shoal members are highly correlated, individuals only respond to their single nearest neighbor. The last two of these rules are different from the classical models of collective animal motion, raising new questions about how fish and other animals self-organize on the move.

Place, publisher, year, edition, pages
2011. Vol. 108, no 46, 18726-18731 p.
Keyword [en]
collective animal behavior, fish shoals, group motion, self-propelled particles, self-organization
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-163664DOI: 10.1073/pnas.1109355108ISI: 000297008900040OAI: oai:DiVA.org:uu-163664DiVA: diva2:464948
Available from: 2011-12-14 Created: 2011-12-13 Last updated: 2017-12-08Bibliographically approved

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Perna, AndreaMann, Richard P.Sumpter, David J. T.

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