On the heritability of blue-green eggshell coloration.

Abstract excerpt

Avian blue-green eggshell coloration has been proposed as a female signal of genetic or phenotypic quality to males. However, little is known about the relative importance of additive genetic and environmental effects as sources of eggshell colour variation in natural populations. Using 5 years of data and animal models, we explored these effects in a free-living population of pied flycatchers. Permanent...

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