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dc.contributor.author
Benites, Maria del Pilar
dc.contributor.author
Eaton, Muir D.
dc.contributor.author
Lijtmaer, Dario Alejandro
dc.contributor.author
Lougheed, Stephen C.
dc.contributor.author
Tubaro, Pablo Luis
dc.date.available
2019-01-31T16:34:08Z
dc.date.issued
2010-11
dc.identifier.citation
Benites, Maria del Pilar; Eaton, Muir D.; Lijtmaer, Dario Alejandro; Lougheed, Stephen C.; Tubaro, Pablo Luis; Analysis from avian visual perspective reveals plumage colour differences among females of capuchino seedeaters (Sporophila); Wiley Blackwell Publishing, Inc; Journal Of Avian Biology; 41; 6; 11-2010; 597-602
dc.identifier.issn
0908-8857
dc.identifier.uri
http://hdl.handle.net/11336/69101
dc.description.abstract
Females of the closely related capuchino seedeaters are difficult to distinguish from one another based on human visual perception of colouration and morphology. We examined plumage colour differences among females of four species, the tawny-bellied seedeater Sporophila hypoxantha, the dark-throated seedeater S. ruficollis, the rufous-rumped seedeater S. hypochroma, and the chesnut-bellied seedeater S. cinnamomea. Reflectance values were measured on museum skins, and interspecific differences were analyzed using the Vorobyev-Osorio avian colour discrimination model. Interspecific distances in the colour space calculated by the model were considerably higher than the threshold for colour discrimination, indicating the presence of colour differences among species that should be detectable by birds. Colour differences between S. hypoxantha and the other three species were the largest. A Discriminant Function Analysis showed that UV-wavelength was particularly important in species separation. Our results indicate that female plumage of these four species is considerably divergent in colour; these differences being imperceptible to the human eye, thus representing previously unknown morphological evolution in these species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sporophila
dc.subject
Color
dc.subject
Percepción Visual
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Plumaje
dc.subject.classification
Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Analysis from avian visual perspective reveals plumage colour differences among females of capuchino seedeaters (Sporophila)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-30T13:57:11Z
dc.journal.volume
41
dc.journal.number
6
dc.journal.pagination
597-602
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Benites, Maria del Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
dc.description.fil
Fil: Eaton, Muir D.. Drake University; Estados Unidos
dc.description.fil
Fil: Lijtmaer, Dario Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
dc.description.fil
Fil: Lougheed, Stephen C.. Queens University; Canadá
dc.description.fil
Fil: Tubaro, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina
dc.journal.title
Journal Of Avian Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1600-048X.2010.05205.x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1600-048X.2010.05205.x
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