English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/110508
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
 |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Relationships between territory quality and carotenoid-based plumage colour, cell-mediated immune response, and body mass in Great Tit Parus major nestlings

Autor Galván, Ismael ; Díaz, Leticia ; Sanz, Juan José
Palabras clave carotenoids
phenotypic plasticity
plumage colour
T-cell immune response
territory quality
Fecha de publicación 2009
EditorMuseum and Institute of Zoology of Polish Academy of Sciences
Citación Acta Ornithologica 44: 139-150 (2009)
ResumenPlumage colour is classified as pigmentary or structural, depending on whether it is caused by pigments or by feather microstructure. However, recent findings indicate that carotenoid-based plumage colouration also reflects at UV-blue wavelengths and that the underlying structure is related to the reflectance properties of the yellow feathers. Thus, yellow plumage is based on interactions between structural and pigmentary components. This study investigated the relationships among the vegetation structure of breeding territories, both components of plumage colour, T-cell-mediated immune response and body mass of nestling Great Tits Parus major. By using a model of avian visual perception, we found that, while plumage yellowness was associated with mature vegetation, plumage brightness and UV-blue reflectance were related to immature habitats in territories. We noted considerable variability in the development of carotenoid-based colour components under different environmental conditions, as plumage yellowness, but not brightness or UV-blue reflectance, depends on the availability of carotenoids, which is assumed to be high in mature territories with high food abundance. Territorial features denoting mature territories were also related to high body mass and immune response in nestlings, but none of the colour components were related to these variables of the vegetation structure, suggesting that habitat quality is related to nestling body mass and immune response through mechanisms different from those through which it is related to colour.
Versión del editorhttp://www.bioone.org/doi/abs/10.3161/000164509X482722
URI http://hdl.handle.net/10261/110508
DOIhttp://dx.doi.org/10.3161/000164509X482722
Aparece en las colecciones: (MNCN) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.