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Documents disponibles écrits par cet auteur (6)
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Article
Effect of investigator disturbance on corticosterone concentrations of Black-legged Kittiwake chicks
John H. Brewer, Auteur ; Kathleen M. O'Reilly, Auteur ; C. Loren Buck, AuteurRecent studies indicate that young seabird chicks exposed to relatively short periods of elevated levels of plasma corticosterone may suffer lifelong cognitive impairment that is detrimental to their survivorship and fitness as adults. We examin[...]
Article
S. Erin Whidden, Auteur ; Cory T. Williams, Auteur ; Andre R. Breton, Auteur ; C. Loren Buck, AuteurAlthough radiotelemetry is useful for monitoring nest attendance and the foraging ranges and distribution of breeding birds, attachment of transmitters may affect reproductive behavior. In 2003, we captured 25 adult Tufted Puffins (Fratercula ci[...]
Article
Cory T. Williams, Auteur ; Alexander S. Kitaysky, Auteur ; C. Loren Buck, AuteurIn some species, corticosterone (CORT) appears to play a role in the control of begging behavior. Because of the potentially high costs associated with chronic elevation of CORT, it has also been proposed as a mechanism to ensure begging is an h[...]
Article
Robert W. Fridinger, Auteur ; Kathleen M. O'Reilly, Auteur ; S. Dean Kildaw, Auteur ; C. Loren Buck, AuteurPlasma corticosterone concentrations in birds often increase about 3 min after exposure to a stressor such as capture and handling. When measuring adrenal responsiveness of nestlings in broods with more than one nestling, standardizing capture p[...]
Article
Cory T. Williams, Auteur ; S. Dean Kildaw, Auteur ; C. Loren Buck, AuteurReduced prey availability can affect the growth and survival of nestling seabirds. However, few studies have demonstrated similar effects on indices of adult body condition. We examined body condition and seasonal mass loss of breeding adult mal[...]
Article
Using fatty acids as dietary tracers in seabird trophic ecology: theory, application and limitations
Cory T. Williams, Auteur ; C. Loren Buck, AuteurAnalysis of fatty acids (FAs) is an increasingly utilized tool in studies of trophic ecology in marine ecosystems. This powerful technique has proved useful in delineating spatial and temporal variability in diets, identifying the consumption of[...]
