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Artículo

Female tawny-bellied seedeaters do not prefer more colorful males in choice experiments

Facchinetti, CarolinaIcon ; Reboreda, Juan CarlosIcon
Fecha de publicación: 09/2013
Editorial: Springer Tokyo
Revista: Journal Of Ethology
ISSN: 0289-0771
e-ISSN: 1439-5444
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

Plumage coloration has long been studied as a sexually selected character. The tawny-bellied seedeater, Sporophila hypoxantha, is a sexually dichromatic species, with adult males the more colorful sex and juvenile males indistinguishable from females. We did choice experiments to evaluate female preferences for males that differ in age or plumage coloration. Females were evaluated in three experiments: (1) choice between males with similar breast brightness that differed in age, (2) choice between males of 2 years of age that differed in breast brightness, and (3) choice between males of 3 or more years of age that differed in breast brightness. We also repeated the latter experiment with estradiol-treated females. We did not find a clear female preference for brighter or older males, as females spent the same proportion of time with males of similar breast brightness that differed in age or with males of similar age that differed in breast brightness. Our results do not support the hypothesis that breast brightness is a cue used by female tawny-bellied seedeaters at the time of choosing males. We propose that, in this species, male plumage coloration might play a role in intrasexual competition.
Palabras clave: Plumage Coloration , Sexual Selection , Sporophila Hypoxantha , Female Choice
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/19702
DOI: http://dx.doi.org/10.1007/s10164-013-0371-3
URL: https://link.springer.com/article/10.1007%2Fs10164-013-0371-3
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Articulos(IEGEBA)
Articulos de INSTITUTO DE ECOLOGIA, GENETICA Y EVOLUCION DE BS. AS
Citación
Facchinetti, Carolina; Reboreda, Juan Carlos; Female tawny-bellied seedeaters do not prefer more colorful males in choice experiments; Springer Tokyo; Journal Of Ethology; 31; 3; 9-2013; 233-238
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