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Validation of the Doubly Labeled Water Method in Growing Precocial Birds: The Importance of Assumptions Concerning Evaporative Water Loss
The doubly labeled water (DLW) method was validated against respiration gas analysis in growing precocial chicks of the black‐tailed godwit (Limosa limosa) and the northern lapwing (VanellusExpand
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Quantifying the effect of predators on endangered species using a bioenergetics approach: Caspian terns and juvenile salmonids in the Columbia River estuary
We estimated the consumption of juvenile salmonids (Oncorhynchus spp.) and other forage fishes by Caspian terns (Sterna caspia) nesting on Rice Island in the Columbia River estuary in 1997 and 1998Expand
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Fuel use and metabolic response to endurance exercise: a wind tunnel study of a long-distance migrant shorebird.
This study examines fuel use and metabolism in a group of long-distance migrating birds, red knots Calidris canutus (Scolopacidae), flying under controlled conditions in a wind tunnel for up to 10 h.Expand
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Compensation in resting metabolism for experimentally increased activity
Abstract To study zebra finch allocation of energy to day and night at two different workloads, we assessed the daily energy turnover from: (1) metabolizable energy of the food, and (2)Expand
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ENERGY AND WATER BUDGETS OF LARKS IN A LIFE HISTORY PERSPECTIVE: PARENTAL EFFORT VARIES WITH ARIDITY
We compared physiological, demographic, and ecological variables of larks to gain insights into life history variation along an aridity gradient, incorporating phylo- genetic relationships inExpand
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Avian metabolism: Costs of migration in free-flying songbirds
Billions of songbirds migrate between continents twice each year, but the energy costs of this feat have never been measured for free-flying individuals. Here we follow New World Catharus thrushesExpand
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Breast milk and energy intake in exclusively, predominantly, and partially breast-fed infants
Objective: To investigate the extent to which breast milk is replaced by intake of other liquids or foods, and to estimate energy intake of infants defined as exclusively (EBF), predominantly (PBF)Expand
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The Energetic Cost of Feather Synthesis Is Proportional to Basal Metabolic Rate
The cost of feather production, Cf (kJ · [g dry feathers]⁻¹), differs substantially between species. We studied the molt cost in one insectivorous songbird (bluethroat, Luscinia s. svecica) and oneExpand
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Behavioural and physiological responses to increased foraging effort in male mice
SUMMARY Free-living animals must forage for food and hence may face energetic constraints imposed by their natural environmental conditions (e.g. ambient temperature, food availability). SimulatingExpand
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Mechanisms promoting higher growth rate in arctic than in temperate shorebirds
We compared prefledging growth, energy expenditure, and time budgets in the arctic-breeding red knot (Calidris canutus) to those in temperate shorebirds, to investigate how arctic chicks achieve aExpand
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