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Article
Emily Cornelius Ruhs, Auteur ; François Vézina, Auteur ; Morgan A. Walker, Auteur ; William H. Karasov, AuteurCurrent life history theory suggests that during times of extreme energetic demand, animals may need to trade off physiological capacity of certain functions to maintain other more important biological functions. This might be especially true du[...]
Article
David L. Swanson, Auteur ; François Vézina, AuteurSmall birds inhabiting regions with cold winter climates show seasonally flexible metabolic phenotypes, with the winter phenotype characterized by increments of summit metabolic rate (Msum) and cold tolerance. In the study reported here, we focu[...]
Article
Clement Mandin, Auteur ; François Vézina, AuteurThe plasma metabolites triglycerides (TRIG) and beta-hydroxybutyrate (BUTY) are used as indices of nutritional condition in migrating birds during refuelling and can provide a measure of relative fattening rates in individual birds. Because non-[...]
Article
Agnes Lewden, Auteur ; Magali Petit, Auteur ; Myriam Milbergue, Auteur ; Stephane Orio, Auteur ; François Vézina, AuteurThe use of hypothermia as a means to save energy is well documented in birds. This energy-saving strategy is widely considered to occur exclusively at night in diurnally active species. However, recent studies suggest that facultative hypothermi[...]
Article
François Vézina, Auteur ; Anne Dekinga, Auteur ; Theunis Piersma, AuteurPhenotypic flexibility is a phenomenon where physiological functions in animals are reversibly adjusted in response to ecological constraints. Research usually focuses on effects of single constraints, but under natural conditions animals face a[...]
