Blue-green eggshell coloration is not a sexually selected signal of female quality in an open-nesting polygynous passerine

Abstract

It has been proposed that blue-green egg colours have evolved as a post-mating signal of female quality, selected by males allocating their parental effort in response to the strength of this signal. We tested two main assumptions of the sexually selected egg coloration hypothesis: (1) whether the intensity of eggshell blue-green chroma (BGC) reflects… (More)
DOI: 10.1007/s00114-011-0790-3

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