The energetic cost of begging behaviour in nestling house wrens
Article Abstract:
The energy spent on begging behavior in nestling house wrens, Troglodytes aedon, was measured using an open circuit respirometer and correlated with the cumulative energy utilized and the energy spent on non-begging activity. Results reveal that the energy expenditure for begging activities is a very small percentage of the total energy available to the nestlings, 0.02% and 0.22% in younger and older nestlings, respectively. This represents only a small percentage of energy stored in body tissues.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Begging as graded signals of need for food in young ring-billed gulls
Article Abstract:
Short-term food deprivation increased begging and reduced both mass and linear growth in young ring-billed gulls, Larus delawarensis. Two condition groups, the high-condition chicks fed until satiated and the low-condition chicks which were fed 75% wet mass of high condition diet, were tested at three levels of short-term food deprivation. Among the low-condition chicks, begging call rate, intensity and peck rate were all significantly higher.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
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