Phylogeny affects estimation of metabolic scaling in mammals

Symonds, Matthew R. E. and Elgar, Mark A. 2002, Phylogeny affects estimation of metabolic scaling in mammals, Evolution, vol. 56, no. 11, pp. 2330-2333, doi: 10.1111/j.0014-3820.2002.tb00156.x.

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Title Phylogeny affects estimation of metabolic scaling in mammals
Author(s) Symonds, Matthew R. E.ORCID iD for Symonds, Matthew R. E.
Elgar, Mark A.
Journal name Evolution
Volume number 56
Issue number 11
Start page 2330
End page 2333
Total pages 4
Publisher Wiley - Blackwell Publishing
Place of publication Oxford, Eng.
Publication date 2002-11
ISSN 0014-3820
Keyword(s) body size
comparative method
independent contrasts
Kleiber’s Law
metabolic rate
Summary The relationship between body size and metabolic rate is a crucial issue in organismal biology and evolution. There has been considerable debate over whether the scaling exponent of the relationship is 0.75 (Kleiber’s Law) or 0.67. Here we show that determination of this exponent for mammals depends on both the evolutionary tree and the regression model used in the comparative analysis. For example, more recent molecular-based phylogenies tend to support a 0.67 exponent, whereas older phylogenies, mostly based on morphological data, suggest a 0.75 exponent. However, molecular phylogenies yield more variable results than morphological phylogenies and thus are not currently helping to resolve the issue.
Language eng
DOI 10.1111/j.0014-3820.2002.tb00156.x
Field of Research 060203 Ecological Physiology
060309 Phylogeny and Comparative Analysis
060809 Vertebrate Biology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C4.1 Letter or note
Copyright notice ©2002, Wiley-Blackwell
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