Daily Energy and Expenditure by Black-Capped Chickadees (Parus atricapillus) in Winter

A report on daily energy expenditure, or field metabolic rate, of free-living Black-capped Chickadees (Parus atricapillus) during winter in Wisconsin, measured with doubly-labeled water, complements a study on the impact of wintertime supplemental feeding on the ecology of wild birds (Brittingham an...

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Bibliographic Details
Published in:The Auk 1992-04, Vol.109 (2), p.393-395
Main Authors: Karasov, William H., Brittingham, Margaret C., Temple, Stanley A.
Format: Article
Language:English
Subjects:
Animals
Average linear density
Basal metabolism
Birds
Blood
Metabolism
Seasons
Short Communications and Commentaries
Tritium
Weather
Wild birds
Wildlife ecology
Winter
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Summary:A report on daily energy expenditure, or field metabolic rate, of free-living Black-capped Chickadees (Parus atricapillus) during winter in Wisconsin, measured with doubly-labeled water, complements a study on the impact of wintertime supplemental feeding on the ecology of wild birds (Brittingham and Temple 1988, 1991). The data greatly extend the knowledge about the magnitude of energy expenditure during a time of year when expenditure is thought to be high and energy availability is thought to be limiting.
ISSN:0004-8038
1938-4254
2732-4613
DOI:10.2307/4088213