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Tropical birds have a slow pace of life
Tropical birds are relatively long-lived and produce few offspring, which develop slowly and mature relatively late in life, the slow end of the life-history axis, whereas temperate birds lie at theExpand
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Effects of Microhabitat, Flocking, Climate and Migratory Goal on Energy Expenditure in the Annual Cycle of Red Knots
We quantify seasonal changes in the maintenance energy requirements of Red Knots (Calidris canutus islandica). This subspecies breeds on the tundra of northeast Canada and north Greenland, migratesExpand
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Birds sacrifice oxidative protection for reproduction
Oxidative metabolism has reactive oxygen species (ROS) as unavoidable by–products, and the damage ROS inflicts on DNA, proteins and lipids is considered to be a major agent of senescence. IncreasingExpand
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Cold- and exercise-induced peak metabolic rates in tropical birds
Compared with temperate birds, tropical birds have low reproductive rates, slow development as nestlings, and long lifespans. These “slow” life history traits are thought to be associated withExpand
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Scale and intensity of intertidal habitat use by knots Calidris canutus in the Western Wadden Sea in relation to food, friends and foes
Abstract In August–October 1988–1992 we studied the distribution and abundance of knots Calidris canutus around Griend in the western Wadden Sea, and the extent to which these can be explained byExpand
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Variability in Basal Metabolic Rate of a Long-Distance Migrant Shorebird (Red Knot, Calidris canutus) Reflects Shifts in Organ Sizes
We studied differences in body composition and basal metabolic rate (BMR, measured in postabsorptive birds under thermoneutral conditions at night) in two subspecies of red knots, Calidris canutus:Expand
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Optimal Foraging and Beyond: How Starlings Cope with Changes in Food Availability
Foraging adaptations include behavioral and physiological responses, but most optimal foraging models deal exclusively with behavioral decision variables, taking other dimensions as constraints. ToExpand
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Interspecific Associations between Circulating Antioxidant Levels and Life‐History Variation in Birds
Antioxidants play an important role in protecting tissues against aging‐associated oxidative damage and are thus prime candidates for relating physiological mechanisms to variation in life histories.Expand
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Effects of intake rate on energy expenditure, somatic repair and reproduction of zebra finches
SUMMARY Understanding the effect of food availability on food requirements is critical when linking food availability e.g. to reproduction or habitat selection. Decreasing intake rate (intake perExpand
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