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Plumage color as a composite trait: Developmental and functional integration of sexual ornamentation


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dc.contributorGeoffrey Hill, hillgee@auburn.eduen_US
dc.creatorBadyaev, Alexander
dc.creatorHill, Geoffrey
dc.creatorDunn, Peter
dc.creatorGlen, John
dc.date.accessioned2023-05-17T20:43:27Z
dc.date.available2023-05-17T20:43:27Z
dc.date.created2001
dc.identifier10.1086/321325en_US
dc.identifier.urihttps://www.journals.uchicago.edu/doi/epdf/10.1086/321325en_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50518
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-586
dc.description.abstractMost studies of condition-dependent sexual ornaments have treated such ornaments as single traits. However, sexual ornaments are often composites of several components, each produced by partially independent developmental pathways. Depending on environmental and individual condition, components of these ornaments may reflect different behavioral or physiological properties of an individual. One of the best-known, condition-dependent ornaments is carotenoid-based plumage coloration, which has at least four distinct components: pigment elaboration, patch area, pigment symmetry, and patch area symmetry. Here we examined fitness consequences of variation in individual components of carotenoid ornamentation in male house finches (Carpodacus mexicanus). Over 5 yr and several selection episodes, we studied variation in the plumage components in a large sample (n = 498) of males from a Montana population. The ornament components were partially independent of each other and had distinct fitness consequences. Selection for higher fecundity favored an increase in redness of coloration and a decrease in pigment asymmetry and patch area asymmetry but did not act on patch area itself. In contrast, viability selection favored larger and more symmetrical ornamental patches but did not act on pigment elaboration. Developmental and functional interrelationships among individual components of ornamentation strongly differed between house finch populations. Distinct patterns of selection on individual components of condition-dependent ornaments, combined with partially independent development of components, should favor the evolution of composite sexual traits whose components reliably reflect condition across a wide array of environments.en_US
dc.formatPDFen_US
dc.publisherUniversity of Chicago Pressen_US
dc.relation.ispartofAmerican Naturalisten_US
dc.relation.ispartofseries0003-0147en_US
dc.rights©The Authors 2001. ©University of Chicago Press 2001. This is this the version of record published by the University of Chicago Press. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Badyaev, Alexander V., Geoffrey E. Hill, Peter O. Dunn, and John C. Glen. Plumage color as a composite trait: developmental and functional integration of sexual ornamentation. The American Naturalist 158, no. 3 (2001): 221-235.en_US
dc.subjectCarpodacus mexicanusen_US
dc.subjectcomposite traiten_US
dc.subjectmorphological in-tegrationen_US
dc.subjectsexual ornamentsen_US
dc.subjectplumage coloren_US
dc.subjectphenotypic selectionen_US
dc.titlePlumage color as a composite trait: Developmental and functional integration of sexual ornamentationen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume158en_US
dc.citation.issue3en_US
dc.citation.spage221en_US
dc.citation.epage235en_US
dc.description.statusPublisheden_US
dc.description.peerreviewYesen_US
dc.creator.orcid0000-0002-7450-4194en_US
dc.creator.orcid0000-0001-8864-6495en_US

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