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https://hdl.handle.net/2440/1932
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Type: | Journal article |
Title: | Does Basal Metabolic Rate Contain a Useful Signal? Mammalian BMR Allometry and Correlations with a Selection of Physiological, Ecological, and Life-History Variables |
Author: | White, C. Seymour, R. |
Citation: | Physiological and Biochemical Zoology, 2004; 77(6):929-941 |
Publisher: | Univ Chicago Press |
Issue Date: | 2004 |
ISSN: | 1522-2152 1537-5293 |
Statement of Responsibility: | Craig R. White and Roger S. Seymour |
Abstract: | Basal metabolic rate (BMR, mL O2 h(-1)) is a useful measurement only if standard conditions are realised. We present an analysis of the relationship between mammalian body mass (M, g) and BMR that accounts for variation associated with body temperature, digestive state, and phylogeny. In contrast to the established paradigm that BMR proportional to M3/4, data from 619 species, representing 19 mammalian orders and encompassing five orders of magnitude variation in M, show that BMR proportional to M2/3. If variation associated with body temperature and digestive state are removed, the BMRs of eutherians, marsupials, and birds do not differ, and no significant allometric exponent heterogeneity remains between orders. The usefulness of BMR as a general measurement is supported by the observation that after the removal of body mass effects, the residuals of BMR are significantly correlated with the residuals for a variety of physiological and ecological variables, including maximum metabolic rate, field metabolic rate, resting heart rate, life span, litter size, and population density. |
Keywords: | Animals Birds Mammals Basal Metabolism Body Size Body Temperature Ecosystem Phylogeny Species Specificity Biological Evolution |
DOI: | 10.1086/425186 |
Published version: | http://dx.doi.org/10.1086/425186 |
Appears in Collections: | Aurora harvest 6 Earth and Environmental Sciences publications |
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