Contrasting stripes are a widespread feature of group living in birds, mammals and fishes

Grouping is a widespread form of predator defence, with individuals in groups often performing evasive collective movements in response to attack by predators. Individuals in these groups use behavioural rules to coordinate their movements, with visual cues about neighbours' positions and orien...

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Autores: Negro, Juan J., Doña, Jorge, Blázquez, M.C., Rodríguez, Airam, Herbert-Read, James E., Brooke, M. de L.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/228295
Acceso en línea:http://hdl.handle.net/10261/228295
Access Level:acceso abierto
Palabra clave:Stripes
Melanin
Body patterns
Collective movement
Antipredator defences
Dazzle
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spelling Contrasting stripes are a widespread feature of group living in birds, mammals and fishesNegro, Juan J.Doña, JorgeBlázquez, M.C.Rodríguez, AiramHerbert-Read, James E.Brooke, M. de L.StripesMelaninBody patternsCollective movementAntipredator defencesDazzleGrouping is a widespread form of predator defence, with individuals in groups often performing evasive collective movements in response to attack by predators. Individuals in these groups use behavioural rules to coordinate their movements, with visual cues about neighbours' positions and orientations often informing movement decisions. Although the exact visual cues individuals use to coordinate their movements with neighbours have not yet been decoded, some studies have suggested that stripes, lines, or other body patterns may act as conspicuous conveyors of movement information that could promote coordinated group movement, or promote dazzle camouflage, thereby confusing predators. We used phylogenetic logistic regressions to test whether the contrasting achromatic stripes present in four different taxa vulnerable to predation, including species within two orders of birds (Anseriformes and Charadriiformes), a suborder of Artiodactyla (the ruminants), and several orders of marine fishes (predominantly Perciformes) were associated with group living. Contrasting patterns were significantly more prevalent in social species, and tended to be absent in solitary species or species less vulnerable to predation. We suggest that stripes taking the form of light-coloured lines on dark backgrounds, orvice versa,provide a widespread mechanism across taxa that either serves to inform conspecifics of neighbours' movements, or to confuse predators, when moving in groups. Because detection and processing of patterns and of motion in the visual channel is essentially colour-blind, diverse animal taxa with widely different vision systems (including mono-, di-, tri-, and tetrachromats) appear to have converged on a similar use of achromatic patterns, as would be expected given signal-detection theory. This hypothesis would explain the convergent evolution of conspicuous achromatic patterns as an antipredator mechanism in numerous vertebrate species.Zoological Society of LondonConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/228295reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1098/rspb.2020.2021Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2282952026-05-22T06:33:51Z
dc.title.none.fl_str_mv Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
title Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
spellingShingle Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
Negro, Juan J.
Stripes
Melanin
Body patterns
Collective movement
Antipredator defences
Dazzle
title_short Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
title_full Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
title_fullStr Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
title_full_unstemmed Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
title_sort Contrasting stripes are a widespread feature of group living in birds, mammals and fishes
dc.creator.none.fl_str_mv Negro, Juan J.
Doña, Jorge
Blázquez, M.C.
Rodríguez, Airam
Herbert-Read, James E.
Brooke, M. de L.
author Negro, Juan J.
author_facet Negro, Juan J.
Doña, Jorge
Blázquez, M.C.
Rodríguez, Airam
Herbert-Read, James E.
Brooke, M. de L.
author_role author
author2 Doña, Jorge
Blázquez, M.C.
Rodríguez, Airam
Herbert-Read, James E.
Brooke, M. de L.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stripes
Melanin
Body patterns
Collective movement
Antipredator defences
Dazzle
topic Stripes
Melanin
Body patterns
Collective movement
Antipredator defences
Dazzle
description Grouping is a widespread form of predator defence, with individuals in groups often performing evasive collective movements in response to attack by predators. Individuals in these groups use behavioural rules to coordinate their movements, with visual cues about neighbours' positions and orientations often informing movement decisions. Although the exact visual cues individuals use to coordinate their movements with neighbours have not yet been decoded, some studies have suggested that stripes, lines, or other body patterns may act as conspicuous conveyors of movement information that could promote coordinated group movement, or promote dazzle camouflage, thereby confusing predators. We used phylogenetic logistic regressions to test whether the contrasting achromatic stripes present in four different taxa vulnerable to predation, including species within two orders of birds (Anseriformes and Charadriiformes), a suborder of Artiodactyla (the ruminants), and several orders of marine fishes (predominantly Perciformes) were associated with group living. Contrasting patterns were significantly more prevalent in social species, and tended to be absent in solitary species or species less vulnerable to predation. We suggest that stripes taking the form of light-coloured lines on dark backgrounds, orvice versa,provide a widespread mechanism across taxa that either serves to inform conspecifics of neighbours' movements, or to confuse predators, when moving in groups. Because detection and processing of patterns and of motion in the visual channel is essentially colour-blind, diverse animal taxa with widely different vision systems (including mono-, di-, tri-, and tetrachromats) appear to have converged on a similar use of achromatic patterns, as would be expected given signal-detection theory. This hypothesis would explain the convergent evolution of conspicuous achromatic patterns as an antipredator mechanism in numerous vertebrate species.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/228295
url http://hdl.handle.net/10261/228295
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1098/rspb.2020.2021
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Zoological Society of London
publisher.none.fl_str_mv Zoological Society of London
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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