La Tour du Valat

Article

Diet preferences of warblers for specific fatty acids in relation to nutritional requirements and digestive capabilities

S. R. McWilliams, Auteur ; S. B. Kearney, Auteur ; W. H. Karasov, Auteur

Dans Journal of Avian Biology (33(2) JUN 2002)

During energy-demanding periods of the annual cycle such as migration or during cold days in winter, birds store fat comprised mostly of 16- or 18-carbon unsaturated fatty acids. In such situations, birds may feed selectively on foods with speci[...]

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Article

Flying, fasting, and feeding in birds during migration: a nutritional and physiological ecology perspective

S. R. McWilliams, Auteur ; C. Guglielmo, Auteur ; B. Pierce, Auteur ; M. Klaassen, Auteur

Dans Journal of Avian Biology (35(5) SEP 2004)

Unlike exercising mammals, migratory birds fuel very high intensity exercise (e.g., flight) with fatty acids delivered from the adipose tissue to the working muscles by the circulatory system. Given the primary importance of fatty acids for fuel[...]

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Article

Tri-trophic effects of plant defenses: Chickadees consume caterpillars based on host leaf chemistry

M. S. Mueller, Auteur ; S. R. McWilliams, Auteur ; D. Podlesak, Auteur ; J. R. Donaldson, Auteur ; H. M. Bothwell, Auteur

Dans Journal of Ornithology (147(5, Suppl. 1) AUG 2006)

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