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Ectoparasite density is associated with mouth colour and size in nestling House Sparrows Passer domesticus

Matthew B. Dugas, Auteur ; L. Tess Doumas, Auteur

Dans Ibis (156(3) JUL 2014)

Dependent offspring influence allocation of parental investment using specialized traits thought to contain information about offspring condition. To test this hypothesis, we examined the relationship between one component of avian begging, the [...]

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