Do female ornaments indicate quality in eider ducks?

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چکیده

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Do female ornaments indicate quality in eider ducks?

The fitness consequences of female ornamentation remain little studied and the results are often contradictory. Female ornamentation may be an artefact of a genetic correlation with male ornamentation, but this possibility can be disregarded if the ornament only occurs in females. Female-specific white wing bars in eiders (Somateria mollissima) have been suggested to indicate individual quality...

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Ornamental traits function by improving attractiveness and are generally presumed to experience directional selection for mating success. However, given the greater investment of females in offspring than males, female-specific ornaments can in theory signal fecundity yet be constrained by fecundity costs. Theoretical work predicts that such constraints can lead to stabilizing selection via mal...

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ژورنال

عنوان ژورنال: Biology Letters

سال: 2009

ISSN: 1744-9561,1744-957X

DOI: 10.1098/rsbl.2009.0744