Dietary and sexual correlates of carotenoid pigment expression in dove plumage

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Carotenoid pigmentation in birds' plumage is considered an honest indicator of phenotypic quality, and thus a target of sexual selection. But carotenoids also fulfill essential physiological functions, and therefore, carotenoids should only appear in plumage if they are in excess of those neede...

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Autores principales:	Mahler, Bettina, Araujo, Lidia Susana, Tubaro, Pablo Luis
Publicado:	2003
Materias:	Carotenoid pigments Columbidae Dichromatism Doves Plumage color Sexual selection Aves Columbiformes Vertebrata
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v105_n2_p258_Mahler http://hdl.handle.net/20.500.12110/paper_00105422_v105_n2_p258_Mahler
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00105422_v105_n2_p258_Mahler
record_format	dspace
spelling	paper:paper_00105422_v105_n2_p258_Mahler2023-06-08T14:34:32Z Dietary and sexual correlates of carotenoid pigment expression in dove plumage Mahler, Bettina Araujo, Lidia Susana Tubaro, Pablo Luis Carotenoid pigments Columbidae Dichromatism Doves Plumage color Sexual selection Aves Columbidae Columbiformes Vertebrata Carotenoid pigmentation in birds' plumage is considered an honest indicator of phenotypic quality, and thus a target of sexual selection. But carotenoids also fulfill essential physiological functions, and therefore, carotenoids should only appear in plumage if they are in excess of those needed physiologically. We explored the presence of carotenoid-based plumage coloration in columbids and its association with diet and sexual dichromatism using a comparative analysis. We found that carotenoid plumage pigmentation appeared three times independently in doves, and that these events were always associated with frugivorous feeding habits. This suggests that expression of carotenoid-based plumage color in granivorous species may be constrained by the scarcity of carotenoids in their diet. However, more than half of the frugivorous species lack carotenoid-pigmented plumage, indicating that rich dietary sources of these compounds are a necessary but not sufficient cause for their expression in plumage. Analyzing 12 pairs of sister taxa, we found that plumage dichromatism was neither associated with the amount of carotenoid pigment present in the plumage nor with the sexual dimorphism in carotenoid-pigmented plumage. Although the presence of carotenoid-based plumage coloration has been related to sexual selection in several taxa, we failed to show such an association in columbids. Fil:Mahler, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Araujo, L.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tubaro, P.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v105_n2_p258_Mahler http://hdl.handle.net/20.500.12110/paper_00105422_v105_n2_p258_Mahler
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Carotenoid pigments Columbidae Dichromatism Doves Plumage color Sexual selection Aves Columbidae Columbiformes Vertebrata
spellingShingle	Carotenoid pigments Columbidae Dichromatism Doves Plumage color Sexual selection Aves Columbidae Columbiformes Vertebrata Mahler, Bettina Araujo, Lidia Susana Tubaro, Pablo Luis Dietary and sexual correlates of carotenoid pigment expression in dove plumage
topic_facet	Carotenoid pigments Columbidae Dichromatism Doves Plumage color Sexual selection Aves Columbidae Columbiformes Vertebrata
description	Carotenoid pigmentation in birds' plumage is considered an honest indicator of phenotypic quality, and thus a target of sexual selection. But carotenoids also fulfill essential physiological functions, and therefore, carotenoids should only appear in plumage if they are in excess of those needed physiologically. We explored the presence of carotenoid-based plumage coloration in columbids and its association with diet and sexual dichromatism using a comparative analysis. We found that carotenoid plumage pigmentation appeared three times independently in doves, and that these events were always associated with frugivorous feeding habits. This suggests that expression of carotenoid-based plumage color in granivorous species may be constrained by the scarcity of carotenoids in their diet. However, more than half of the frugivorous species lack carotenoid-pigmented plumage, indicating that rich dietary sources of these compounds are a necessary but not sufficient cause for their expression in plumage. Analyzing 12 pairs of sister taxa, we found that plumage dichromatism was neither associated with the amount of carotenoid pigment present in the plumage nor with the sexual dimorphism in carotenoid-pigmented plumage. Although the presence of carotenoid-based plumage coloration has been related to sexual selection in several taxa, we failed to show such an association in columbids.
author	Mahler, Bettina Araujo, Lidia Susana Tubaro, Pablo Luis
author_facet	Mahler, Bettina Araujo, Lidia Susana Tubaro, Pablo Luis
author_sort	Mahler, Bettina
title	Dietary and sexual correlates of carotenoid pigment expression in dove plumage
title_short	Dietary and sexual correlates of carotenoid pigment expression in dove plumage
title_full	Dietary and sexual correlates of carotenoid pigment expression in dove plumage
title_fullStr	Dietary and sexual correlates of carotenoid pigment expression in dove plumage
title_full_unstemmed	Dietary and sexual correlates of carotenoid pigment expression in dove plumage
title_sort	dietary and sexual correlates of carotenoid pigment expression in dove plumage
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00105422_v105_n2_p258_Mahler http://hdl.handle.net/20.500.12110/paper_00105422_v105_n2_p258_Mahler
work_keys_str_mv	AT mahlerbettina dietaryandsexualcorrelatesofcarotenoidpigmentexpressionindoveplumage AT araujolidiasusana dietaryandsexualcorrelatesofcarotenoidpigmentexpressionindoveplumage AT tubaropabloluis dietaryandsexualcorrelatesofcarotenoidpigmentexpressionindoveplumage
_version_	1768545124094050304

Dietary and sexual correlates of carotenoid pigment expression in dove plumage

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