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Importance of Facial Pattern to Sexual Selection in Golden-Winged Warbler (Vermivora chrysoptera) (Importancia del Patrón Facial en la Selección Sexual de Vermivora chrysoptera)

Ellen R. Leichty and James W. Grier
The Auk
Vol. 123, No. 4 (Oct., 2006), pp. 962-966
DOI: 10.2307/25150212
Stable URL: http://www.jstor.org/stable/25150212
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Importance of Facial Pattern to Sexual Selection in Golden-Winged Warbler (Vermivora chrysoptera) (Importancia del Patrón Facial en la Selección Sexual de Vermivora chrysoptera)
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Abstract

The importance of the black facial pattern in sexual selection in Golden-winged Warblers (Vermivora chrysoptera) was evaluated through experimental plumage modification. We lightened the throat patch and eye mask with hair bleach, which essentially created artificial Brewster's Warbler (F1 generation of Golden-winged Warbler × Blue-winged Warbler [V. pinus]) plumage phenotypes. Experimental males lost their original territories and failed to obtain mates. We concluded that there is sexual selection against the Brewster's facial pattern. Sexual selection attributable to the face pattern may explain the apparent greater effect of hybridization on Golden-winged Warblers than on Blue-winged Warblers. /// La importancia del patrón facial en la selección sexual de Vermivora chrysoptera fue evaluada mediante un experimento de modificación del plumaje. El parche gular y el antifaz fueron decolorados con aclarador de pelo, creando así fenotipos artificiales de híbridos F1 V. chrysoptera × V. pinus. Los machos decolorados perdieron sus territorios originales y no consiguieron pareja. Concluimos que existe selección en contra de los fenotipos faciales híbridos. La selección sexual atribuible al patrón facial puede explicar el aparente mayor efecto de la hibridación en V. chrysoptera que en V. pinus.

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