Sources and significance of variation in basal,summit and maximal metabolic rates in birds |
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| Authors: | ,rew E MCKECHNIE,David L SWANSON DST/NRF Centre of Excellence at the Percy FitzPatnck Institute |
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| Institution: | Andrew E. MCKECHNIE~(1*),David L. SWANSON~(2*)1 DST/NRF Centre of Excellence at the Percy FitzPatnck Institute,Department of Zoology and Entomology,University of Pretoria,Pretoria 0002,South Africa 2 Department of Biology,University of South Dakota,Vermillion,SD 57069,USA |
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| Abstract: | The rates at which birds use energy may have profound effects on fitness, thereby influencing physiology, behavior, ecology and evolution. Comparisons of standardized metabolic rates (e.g., lower and upper limits of metabolic power output) present a method for elucidating the effects of ecological and evolutionary factors on the interface between physiology and life history in birds. In this paper we review variation in avian metabolic rates basal metabolic rate (BMR; minimum normothermic metabolic rate), ... |
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| Keywords: | Phenotypic flexibility Reaction norms Basal metabolic rate Maximal metabolic rate Birds |
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