Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/22774
Title: Local interactions and global properties of wild, free-ranging stickleback shoals
Contributor(s): Ward, Ashley J W (author); Schaerf, Timothy  (author)orcid ; Herbert-Read, James E (author); Morrell, Lesley (author); Sumpter, David J T (author); Webster, Mike M (author)
Publication Date: 2017
Open Access: Yes
DOI: 10.1098/rsos.170043Open Access Link
Handle Link: https://hdl.handle.net/1959.11/22774
Abstract: Collective motion describes the global properties of moving groups of animals and the self-organized, coordinated patterns of individual behaviour that produce them. We examined the group-level patterns and local interactions between individuals in wild, free-ranging shoals of three-spine sticklebacks, Gasterosteus aculeatus. Our data reveal that the highest frequencies of near-neighbour encounters occur at between one and two body lengths from a focal fish, with the peak frequency alongside a focal individual. Fish also show the highest alignment with these laterally placed individuals, and generally with animals in front of themselves. Furthermore, fish are more closely matched in size, speed and orientation to their near neighbours than to more distant neighbours, indicating local organization within groups. Among the group-level properties reported here, we find that polarization is strongly influenced by group speed, but also the variation in speed among individuals and the nearest neighbour distances of group members. While we find no relationship between group order and group size, we do find that larger groups tend to have lower nearest neighbour distances, which in turn may be important in maintaining group order.
Publication Type: Journal Article
Source of Publication: Royal Society Open Science, 4(170043), p. 1-11
Publisher: The Royal Society Publishing
Place of Publication: United Kingdom
ISSN: 2054-5703
Field of Research (FOR): 010202 Biological Mathematics
060201 Behavioural Ecology
060801 Animal Behaviour
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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