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dc.contributor.author
Facchinetti, Carolina  
dc.contributor.author
Mahler, Bettina  
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Di Giacomo, Alejandro G.  
dc.contributor.author
Reboreda, Juan Carlos  
dc.date.available
2019-01-21T22:31:30Z  
dc.date.issued
2011-11  
dc.identifier.citation
Facchinetti, Carolina; Mahler, Bettina; Di Giacomo, Alejandro G.; Reboreda, Juan Carlos; Stages of plumage maturation of the Tawny-bellied Seedeater: Evidence of delayed plumage maturation and cryptic differentiation between juveniles and females; Cooper Ornithological Society; The Condor; 113; 4; 11-2011; 907-914  
dc.identifier.issn
0010-5422  
dc.identifier.uri
http://hdl.handle.net/11336/68354  
dc.description.abstract
In some sexually dichromatic passerines, juvenile males retain a plumage similar to that of adult females through their first year or longer (delayed plumage maturation). The Tawny-bellied Seedeater (Sporophila hypoxantha) is a sexually dichromatic species in which, to the human eye, the juveniles look like females. We analyzed the species' stages of plumage maturation by reflectance spectrometry and a visual model of color discrimination on captive individuals of known ages. We found that males retain a plumage different from that of adult males through their first breeding season. By the time males passed the age of 1 year, their color did not differ from that of adult males in any region of the body except the crown. Spectrophotometry also revealed differences between the plumage color of juvenile males and females, and the color-discrimination model implies that the birds should be able to detect these differences. Thus juvenile males of the Tawny-bellied Seedeater acquire adult plumage after their first breeding season but are already dichromatic during the first year. How this pattern of plumage development affects the species' reproductive or other social behavior deserves further study.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Cooper Ornithological Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Avian Visual Modeling  
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Plumage Color  
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Plumage Reflectance  
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Sporophila Hypoxantha  
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Tawnybellied Seedeater  
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Otras Ciencias Biológicas  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Stages of plumage maturation of the Tawny-bellied Seedeater: Evidence of delayed plumage maturation and cryptic differentiation between juveniles and females  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-01-17T14:11:31Z  
dc.journal.volume
113  
dc.journal.number
4  
dc.journal.pagination
907-914  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Facchinetti, Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología y Comportamiento Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Mahler, Bettina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología y Comportamiento Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Di Giacomo, Alejandro G.. Aves Argentinas / Asociación Ornitológica del Plata; Argentina  
dc.description.fil
Fil: Reboreda, Juan Carlos. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución. Laboratorio de Ecología y Comportamiento Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
The Condor  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1525/cond.2011.110010  
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info:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/the-condor/volume-113/issue-4/cond.2011.110010/Stages-of-Plumage-Maturation-of-the-Tawny-Bellied-Seedeater/10.1525/cond.2011.110010.short