Détail de l'auteur
Documents disponibles écrits par cet auteur (12)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Emilio Pagani-Nunez, Auteur ; Juan Carlos Senar, AuteurCarotenoid-based ornaments have been proposed to signal the ability to find food. The good-parent hypothesis suggests that females may rely on these carotenoid-based traits to assess male parental quality. A key question is whether the quality o[...]
Article
Esther Del Val, Auteur ; Juan Jose Negro, Auteur ; Juan Carlos Senar, AuteurCapsule Mediterranean Great Tits showed a marked increase in levels of circulating carotenoids during moult and autumn.Aims To study seasonal variation in plasma carotenoid content during a whole annual cycle for Great Tits Parus major inhabitin[...]
Article
Emilio Pagani-Nunez, Auteur ; Juan Carlos Senar, Auteur ; Jose Luis Tella, AuteurCapsule The Red-billed Leiothrix (Leiothrix lutea) is a superficially sexually monochromatic colourful bird native to the Indian subcontinent, which has colonized many locations across the world as an introduced species. We investigated the best[...]
Article
Emilio Pagani-Nunez, Auteur ; Juan Carlos Senar, Auteur ; Jose Luis Tella, AuteurCapsule The Red-billed Leiothrix (Leiothrix lutea) is a superficially sexually monochromatic colourful bird native to the Indian subcontinent, which has colonized many locations across the world as an introduced species. We investigated the best[...]
Article
Antoni Borras, Auteur ; Josep Cabrera, Auteur ; Xevi Colome, Auteur ; Toni Cabrera, Auteur ; Juan Carlos Senar, AuteurCapsule Individuals ringed at different localities, where previous analyses detected local genetic and morphological differentiation, overlapped in wintering areas. Aims To analyse winter site fidelity and connectivity in Citril Finches, a speci[...]
Article
Antoni Borras, Auteur ; Josep Cabrera, Auteur ; Xevi Colome, Auteur ; Toni Cabrera, Auteur ; Juan Carlos Senar, AuteurCapsule Individuals ringed at different localities, where previous analyses detected local genetic and morphological differentiation, overlapped in wintering areas. Aims To analyse winter site fidelity and connectivity in Citril Finches, a speci[...]
Article
Esther Del Val, Auteur ; Javier Quesada, Auteur ; Juan Carlos Senar, AuteurAdult birds usually display brighter plumage coloration than younger individuals. This difference may be either due to selection against less coloured yearlings or to an increase in coloration after their first complete moult. In this study, we [...]
Article
Emilio Pagani-Nunez, Auteur ; Juan Carlos Senar, AuteurYearling birds generally display duller colours than adults. This may be due to selection favouring birds with more intensely coloured plumage or to an increase in colour after the first complete moult. Most research to date on the topic has bee[...]
Article
Anna Torne-Noguera, Auteur ; Emilio Pagani-Nunez, Auteur ; Juan Carlos Senar, AuteurAnimal research commonly requires temporary handling of study animals. In this study, we compared the response to handling stress in urban and forest Great Tits (Parus major). We measured breath rate, which has been suggested as a proxy of the s[...]
Article
Juan Carlos Senar, Auteur ; Jose Carrillo-Ortiz, Auteur ; Lluisa Arroyo, AuteurMost parakeets, parrots, and cockatoos are difficult to mark because of their strong beaks and ability to manipulate items with their feet. We developed a marking method that consists of a numbered tag hung on a neck collar. We used this method [...]
Article
Mathieu Giraudeau, Auteur ; Margarida Barcelo, Auteur ; Juan Carlos Senar, AuteurIn many bird species, yearling individuals are less colorful than older ones. However, the causal factors behind this difference of color are for the moment unknown. Here, we used ptilochronology in Great Tits Parus major to assess how nutrition[...]
Article
Esther Del Val, Auteur ; Juan Jose Negro, Auteur ; Juan Garrido-Fernandez, Auteur ; Manuel Jaren, Auteur ; Antoni Borras, Auteur ; Josep Cabrera, Auteur ; Juan Carlos Senar, AuteurCarotenoid-based ornamentation shows great variability in Common Crossbill (Loxia curvirostra) males. Plumage colour ranges from dull yellow to bright red, but the majority of birds tend to be reddish-orange. It has been suggested that moult in [...]
