Phylogentically-informed analysis of the universality of metabolic allometry

White, Craig (2009). Phylogentically-informed analysis of the universality of metabolic allometry. In: Proceedings of the XXXVI International Congress of Physiological Sciences (IUPS2009). Function of Life: Elements and Integration. IUPS 2009: XXXVI International Congress of Physiological Sciences. Function of Life: Elements and Integration, Kyoto, Japan, (97-97). 27 July-1 August 2009.

Author White, Craig
Title of paper Phylogentically-informed analysis of the universality of metabolic allometry
Conference name IUPS 2009: XXXVI International Congress of Physiological Sciences. Function of Life: Elements and Integration
Conference location Kyoto, Japan
Conference dates 27 July-1 August 2009
Proceedings title Proceedings of the XXXVI International Congress of Physiological Sciences (IUPS2009). Function of Life: Elements and Integration   Check publisher's open access policy
Journal name Journal of Physiological Sciences   Check publisher's open access policy
Place of Publication Tokyo, Japan
Publisher Springer Japan
Publication Year 2009
Sub-type Published abstract
ISSN 0021-521X
1880-6546
1880-6562
Volume 59
Issue Supp. 1
Start page 97
End page 97
Total pages 1
Language eng
Formatted Abstract/Summary
The relationship between the metabolic rate (MR) and body mass (M) of animals has been debated for almost seven decades, focusing on the value of the scaling exponent (b, where MR is proportional to M b) and the relative merits of b = 0.67 (geometric scaling) and b = 0.75 (quarter-power scaling). However, most analyses of the allometry of metabolic rate are not phylogenetically informed and therefore fail to account for the shared evolutionary history of the species they consider. Here, we present the results of phylogentically-informed comparative analyses of the allometry of metabolic rate in insects, birds, and mammals, as well as a quantitative metaanalysis of published scaling exponents. While the results of conventional non-phylogenetic and phylogenetically informed analyses produce different estimates of the scaling exponent of metabolic rate, it is nevertheless clear that the value of b can differ from both 0.67 and 0.75, differs between activity states, and differs between ectotherms and endotherms. Thus, we conclude that there is no single value of b, and no universal metabolic allometry. This finding represents a significant challenge to models that accomodate only a single value of b.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Presented during Commission VII Comparative Physiology: "Evolution, Adaptation & Environment", RS-VII-40 "Phylogenetic Approaches in Vertebrate Comparative Physiology". Published in Part 1, under "Regular Symposium" as Abstract #RS VII-40-2.

Document type: Conference Paper
Collection: School of Biological Sciences Publications
 
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Created: Sun, 21 Feb 2010, 00:05:48 EST