Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration

Carotenoid-based ornaments are often considered reliable (honest) individual condition signals because their expression implies physiological costs unaffordable for low-quality animals (handicap signals). Recently, it has been suggested that effcient cell respiration is mandatory for producing red k...

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Autores: Fernández-Eslava, Blanca, Galicia, David, Alonso, Daniel, Arizaga, Juan, Alonso-Álvarez, Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/278899
Acceso en línea:http://hdl.handle.net/10261/278899
Access Level:acceso abierto
Palabra clave:Avian carotenoids
Color and biometrics
Loxia genus
Mediterranean crossbills
Resource allocation trade-offs
Shared pathway hypothesis
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spelling Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage colorationFernández-Eslava, BlancaGalicia, DavidAlonso, DanielArizaga, JuanAlonso-Álvarez, CarlosAvian carotenoidsColor and biometricsLoxia genusMediterranean crossbillsResource allocation trade-offsShared pathway hypothesisCarotenoid-based ornaments are often considered reliable (honest) individual condition signals because their expression implies physiological costs unaffordable for low-quality animals (handicap signals). Recently, it has been suggested that effcient cell respiration is mandatory for producing red ketocarotenoids from dietary yellow carotenoids. This implies that red colorations should be entirely unfalsifable and independent of expression costs (index signals). In a precedent study, male common crossbills, Loxia curvirostra, showing a red plumage reported higher apparent survival than those showing yellowish-orange colors. The plumage redness in this species is due to ketocarotenoid accumulation in feathers. Here, we correlated the male plumage redness (a 4-level visual score: yellow, patchy, orange, and red) and the body morphology in more than 1,000 adult crossbills captured in 3 Iberian localities to infer the mechanisms responsible for color evolution. A principal component analysis summarized morphometry of 10 variables (beak, wing, tarsus length, etc.). The overall body size (PC1) and the length of fight feathers regarding body size (PC3) showed signifcant positive relationships with plumage redness. Plumage redness was barely correlated with bill shape measures, suggesting no constraint in acquiring carotenoids from pine cones. However, large body sizes or proportionally long fying feathers could help carotenoid acquisition via social competition or increased foraging ranges. Proportionally longer fight feathers might also be associated with a specifc cell respiration profle that would simultaneously favor fying capacities and enzymatic transformations needed for ketocarotenoid synthesis. Such a phenotypic profle would agree with the hypothesis of ketocarotenoid-based colors acting as individual quality index signals.The study is part of the project PID2019-109303GB-I00 funded by MCIN/AEI/10.13039/501100011033.Peer reviewedOxford University PressMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/278899reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109303GB-I00Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2788992026-05-22T06:33:51Z
dc.title.none.fl_str_mv Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
title Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
spellingShingle Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
Fernández-Eslava, Blanca
Avian carotenoids
Color and biometrics
Loxia genus
Mediterranean crossbills
Resource allocation trade-offs
Shared pathway hypothesis
title_short Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
title_full Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
title_fullStr Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
title_full_unstemmed Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
title_sort Bigger or long-winged male common crossbills exhibit redder carotenoid-based plumage coloration
dc.creator.none.fl_str_mv Fernández-Eslava, Blanca
Galicia, David
Alonso, Daniel
Arizaga, Juan
Alonso-Álvarez, Carlos
author Fernández-Eslava, Blanca
author_facet Fernández-Eslava, Blanca
Galicia, David
Alonso, Daniel
Arizaga, Juan
Alonso-Álvarez, Carlos
author_role author
author2 Galicia, David
Alonso, Daniel
Arizaga, Juan
Alonso-Álvarez, Carlos
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Avian carotenoids
Color and biometrics
Loxia genus
Mediterranean crossbills
Resource allocation trade-offs
Shared pathway hypothesis
topic Avian carotenoids
Color and biometrics
Loxia genus
Mediterranean crossbills
Resource allocation trade-offs
Shared pathway hypothesis
description Carotenoid-based ornaments are often considered reliable (honest) individual condition signals because their expression implies physiological costs unaffordable for low-quality animals (handicap signals). Recently, it has been suggested that effcient cell respiration is mandatory for producing red ketocarotenoids from dietary yellow carotenoids. This implies that red colorations should be entirely unfalsifable and independent of expression costs (index signals). In a precedent study, male common crossbills, Loxia curvirostra, showing a red plumage reported higher apparent survival than those showing yellowish-orange colors. The plumage redness in this species is due to ketocarotenoid accumulation in feathers. Here, we correlated the male plumage redness (a 4-level visual score: yellow, patchy, orange, and red) and the body morphology in more than 1,000 adult crossbills captured in 3 Iberian localities to infer the mechanisms responsible for color evolution. A principal component analysis summarized morphometry of 10 variables (beak, wing, tarsus length, etc.). The overall body size (PC1) and the length of fight feathers regarding body size (PC3) showed signifcant positive relationships with plumage redness. Plumage redness was barely correlated with bill shape measures, suggesting no constraint in acquiring carotenoids from pine cones. However, large body sizes or proportionally long fying feathers could help carotenoid acquisition via social competition or increased foraging ranges. Proportionally longer fight feathers might also be associated with a specifc cell respiration profle that would simultaneously favor fying capacities and enzymatic transformations needed for ketocarotenoid synthesis. Such a phenotypic profle would agree with the hypothesis of ketocarotenoid-based colors acting as individual quality index signals.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/278899
url http://hdl.handle.net/10261/278899
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109303GB-I00
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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