Landscape-scale Physiology: Site Differences in Refueling Rates Indicated by Plasma Metabolite Analysis in Free-living Migratory Sandpipers
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چکیده
Centre for Wildlife Ecology, Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada; Division of Biological Sciences, University of Montana, Missoula, Montana 59812, USA; and Pacifi c Wildlife Research Center, Canadian Wildlife Service, Environment Canada, Rural Route 1, 5421 Robertson Road, Delta, British Columbia V4K 3N2, Canada
منابع مشابه
Flyway-scale Variation in Plasma Triglyceride Levels as an Index of Refueling Rate in Spring-migrating Western Sandpipers (calidris Mauri)
—We combined radiotelemetry, plasma metabolite analyses, and macro-invertebrate prey sampling to investigate variation in putative fatt ening rates (estimated as plasma triglyceride levels) at the fl yway scale in Western Sandpipers (Calidris mauri) migrating between Punta Banda, Mexico (31°N), and Hartney Bay, Alaska (60°N), a distance of 4,240 km. Birds were caught at a wintering site (San Fr...
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Plasma metabolites provide information about the physiological state and fuel use of birds, and have been used for predicting refueling rates of birds during migratory stopovers. However, little is known about the effect of diet on metabolite concentrations in small songbirds. We investigated the effect of dietary macronutrient composition on lipid and protein metabolites in captive White-throa...
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—Plasma lipid metabolites may be useful indicators of mass changes in migratory birds. To test utility of plasma metabolites in field studies, we examined effects of several extrinsic (bleed time, time of day, location) and intrinsic (body mass, sex, age, migratory state) factors on plasma concentrations of triglycerides (TRIG), glycerol (GLYC), and B-OHbutyrate (BUTY) in free-living Western Sa...
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