Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels

In several species, the rusty color of hair or feathers is due to pheomelanin pigments, whose adaptive function is unknown. Pheomelanin may be costly because it is phototoxic and its production consumes a key intracellular antioxidant. Pheomelanin-based traits are, however, positively associated wit...

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Detalhes bibliográficos
Autores: Leclair, Sarah, Perret, Samuel, Galván, Ismael, Bonadonna, Francesco
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/205229
Acesso em linha:http://hdl.handle.net/10261/205229
Access Level:Acceso aberto
Palavra-chave:Birds
Pheomelanin
Signals
Feathers
Oxidative stress
Procellariidae
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spelling Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrelsLeclair, SarahPerret, SamuelGalván, IsmaelBonadonna, FrancescoBirdsPheomelaninSignalsFeathersOxidative stressProcellariidaeIn several species, the rusty color of hair or feathers is due to pheomelanin pigments, whose adaptive function is unknown. Pheomelanin may be costly because it is phototoxic and its production consumes a key intracellular antioxidant. Pheomelanin-based traits are, however, positively associated with individual quality in several bird species, where they have thus been suggested to have evolved through sexual selection. Here we investigated the signaling potential of the pheomelanin-based coloration of the crown feathers in the blue petrel. Although this pelagic seabird is nocturnal at the breeding colony and breeds within deep burrows, it might use visual communication when settled on the water during daytime. We tested the correlation between crown color and several fitness-related traits, and we found that higher-quality females displayed less-orange crown than poorer-quality females. This result is inconsistent with an adaptive function of pheomelanin-based coloration in inter-, or intra-, sexual selection in females. We suggest that it might, however, be in line with a signaling function of eumelanin-based coloration, if inter-individual variations in orange coloration are mainly due to eumelanin-to-pheomelanin ratio, rather than to pheomelanin quantity. In contrast to females, we did not find strong evidence for associations between melanin-based coloration and individual quality in males, suggesting sex-specific selective pressures on melanin-based traits in this species.Kluwer Academic PublishersConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/205229reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s10682-019-10010-7Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2052292026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
title Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
spellingShingle Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
Leclair, Sarah
Birds
Pheomelanin
Signals
Feathers
Oxidative stress
Procellariidae
title_short Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
title_full Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
title_fullStr Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
title_full_unstemmed Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
title_sort Pheomelanin-based coloration is related to individual quality and oxidative stress in blue petrels
dc.creator.none.fl_str_mv Leclair, Sarah
Perret, Samuel
Galván, Ismael
Bonadonna, Francesco
author Leclair, Sarah
author_facet Leclair, Sarah
Perret, Samuel
Galván, Ismael
Bonadonna, Francesco
author_role author
author2 Perret, Samuel
Galván, Ismael
Bonadonna, Francesco
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Birds
Pheomelanin
Signals
Feathers
Oxidative stress
Procellariidae
topic Birds
Pheomelanin
Signals
Feathers
Oxidative stress
Procellariidae
description In several species, the rusty color of hair or feathers is due to pheomelanin pigments, whose adaptive function is unknown. Pheomelanin may be costly because it is phototoxic and its production consumes a key intracellular antioxidant. Pheomelanin-based traits are, however, positively associated with individual quality in several bird species, where they have thus been suggested to have evolved through sexual selection. Here we investigated the signaling potential of the pheomelanin-based coloration of the crown feathers in the blue petrel. Although this pelagic seabird is nocturnal at the breeding colony and breeds within deep burrows, it might use visual communication when settled on the water during daytime. We tested the correlation between crown color and several fitness-related traits, and we found that higher-quality females displayed less-orange crown than poorer-quality females. This result is inconsistent with an adaptive function of pheomelanin-based coloration in inter-, or intra-, sexual selection in females. We suggest that it might, however, be in line with a signaling function of eumelanin-based coloration, if inter-individual variations in orange coloration are mainly due to eumelanin-to-pheomelanin ratio, rather than to pheomelanin quantity. In contrast to females, we did not find strong evidence for associations between melanin-based coloration and individual quality in males, suggesting sex-specific selective pressures on melanin-based traits in this species.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
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/10261/205229
url http://hdl.handle.net/10261/205229
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s10682-019-10010-7
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Kluwer Academic Publishers
publisher.none.fl_str_mv Kluwer Academic Publishers
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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