Nest predation and the evolution of nestling begging calls

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Nest Predation and Nest Sites

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The energetic cost of begging behaviour in nestling house wrens.

This study presents data relevant to the hypothesis that the energy expenditure associated with begging influences the signalling of need by nestling birds. We used open-circuit respirometry to measure the energy costs of resting, begging and non-begging activities in nestling house wrens, Troglodytes aedon, ranging in age from 1 to 11 days post-hatching. Across all ages, begging caused a 27% i...

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The adaptive value of parental responsiveness to nestling begging.

Despite extensive theoretical and empirical research into offspring food solicitation behaviour as a model for parent-offspring conflict and communication, the adaptive value of parental responsiveness to begging has never been tested experimentally. Game theory models, as well as empirical studies, suggest that begging conveys information on offspring state, which implies that parental investm...

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Nest predation and the evolution of egg appearance in passerine birds in Europe and North America

Question: Does nest predation influence egg colour appearance among North American and European passerine birds? Analyses of species that lay their eggs directly on the ground provide support for such a contention, but it is less obvious in shrub and canopy nesters. We hypothesized that if predators locate nests by egg colour, nest predation could select for eggs with a less conspicuous backgro...

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ژورنال

عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences

سال: 1999

ISSN: 0962-8452,1471-2954

DOI: 10.1098/rspb.1999.0902