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At odds with the group: Changes in lateralization and escape performance reveal conformity and conflict in fish schools

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dc.contributor.authorChivers, Douglas P.
dc.contributor.authorMcCormick, Mark Ian
dc.contributor.authorAllan, Bridie J. M.
dc.contributor.authorMitchell, Matthew David
dc.contributor.authorGonçalves, Emanuel João
dc.contributor.authorBryshun, Reid
dc.contributor.authorFerrari, Maud C.O.
dc.date.accessioned2016-11-09T18:54:03Z
dc.date.available2016-11-09T18:54:03Z
dc.date.issued2016
dc.description.abstractMany vertebrates are known to show behavioural lateralization, whereby they differentially use one side of their body or either of their bilateral organs or limbs. Behavioural lateralization often manifests in a turning bias in fishes, with some individuals showing a left bias and others a right bias. Such biases could be the source of considerable conflict in fish schools given that there may be considerable social pressure to conform to the group to maintain effective group evasion. Here, we show that predation pressure is a major determinant of the degree of lateralization, both in a relative and absolute sense, in yellow-and-blueback fusiliers (Caesio teres), a schooling fish common on coral reefs. Wild-caught fish showed a bias for right turning. When predation pressure was experimentally elevated or relaxed, the strength of lateralization changed. Higher predation pressure resulted in an increase in the strength of lateralization. Individuals that exhibited the same turning bias as the majority of individuals in their group had improved escape performance compared with individuals that were at odds with the group. Moreover, individuals that were right-biased had improved escape performance, compared with left-biased ones. Plasticity in lateralization might be an important evolutionary consequence of the way gregarious species respond to predators owing to the probable costs associated with this behaviour.pt_PT
dc.description.sponsorshipNatural Sciences and Engineering Council of Canada; Australian Research Council; ARC Centre of Excellence for Coral Reef Studiespt_PT
dc.identifier.citationProceedings of the Royal Society B: Biological Sciences, 283, 1-8. Doi: 10.1098/rspb.2016.1127pt_PT
dc.identifier.doi10.1098/rspb.2016.1127pt_PT
dc.identifier.issn0962-8452
dc.identifier.urihttp://hdl.handle.net/10400.12/5037
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society, Thept_PT
dc.relation.publisherversionhttp://rspb.royalsocietypublishing.org/content/283/1841/20161127pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectGroup livingpt_PT
dc.subjectSchoolingpt_PT
dc.subjectPredationpt_PT
dc.subjectAlarm cuespt_PT
dc.subjectBehavioural lateralizationpt_PT
dc.subjectCoral reef fishpt_PT
dc.titleAt odds with the group: Changes in lateralization and escape performance reveal conformity and conflict in fish schoolspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage8pt_PT
oaire.citation.issue1841pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleProceedings of the Royal Society B: Biological Sciencespt_PT
oaire.citation.volume283pt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT

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