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https://hdl.handle.net/2440/1960
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Type: | Journal article |
Title: | Mammalian basal metabolic rate is proportional to body mass(2/3) |
Author: | White, C. Seymour, R. |
Citation: | Proceedings of the National Academy of Sciences of USA, 2003; 100(7):4046-4049 |
Publisher: | Natl Acad Sciences |
Issue Date: | 2003 |
ISSN: | 0027-8424 1091-6490 |
Statement of Responsibility: | Craig R. White and Roger S. Seymour |
Abstract: | The relationship between mammalian basal metabolic rate (BMR, ml ofO2 per h) and body mass (M, g) has been the subject of regular investigation for over a century. Typically, the relationship is expressed as an allometric equation of the form BMR = aMb. The scaling exponent (b) is a point of contention throughout this body of literature, within which arguments for and against geometric (b = 2/3) and quarter-power (b = 3/4) scaling are made and rebutted. Recently, interest in the topic has been revived by published explanations for quarter-power scaling based on fractal nutrient supply networks and four-dimensional biology. Here, a new analysis of the allometry of mammalian BMR that accounts for variation associated with body temperature, digestive state, and phylogeny finds no support for a metabolic scaling exponent of 3/4. Data encompassing five orders of magnitude variation in M and featuring 619 species from 19 mammalian orders show that BMR ∞ M2/3. |
Keywords: | Animals Mammals Body Weight Basal Metabolism Body Temperature Analysis of Variance Species Specificity Oxygen Consumption |
Description: | Copyright © 2003, The National Academy of Sciences |
DOI: | 10.1073/pnas.0436428100 |
Published version: | http://www.pnas.org/cgi/content/abstract/100/7/4046 |
Appears in Collections: | Aurora harvest 2 Earth and Environmental Sciences publications |
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