On the Comparative Ecological and Evolutionary Significance of Total and Mass‐Specific Rates of Metabolism

@article{McNab1999OnTC,
  title={On the Comparative Ecological and Evolutionary Significance of Total and Mass‐Specific Rates of Metabolism},
  author={Brian K. McNab},
  journal={Physiological and Biochemical Zoology},
  year={1999},
  volume={72},
  pages={642 - 644}
}
  • B. McNab
  • Published 1 September 1999
  • Biology
  • Physiological and Biochemical Zoology
Energy expenditure is widely used in the study of ecological phenomena, in evolutionary theory, and as a subject of interest in its own right. Many analyses of physiological and ecological phenomena have depended on a correlation with body mass that is parallel to the correlation of rate of metabolism with body mass. Therefore, our understanding of these phenomena has often depended on our analysis of the correlation of rate of metabolism with body mass. Because total rates of metabolism are… 
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The evolution of omnivory, defined as including >10% of the diet as insects, appears to have occurred at least twice, and in each case was associated with an increase in basal rate of metabolism, which may correlate with plumage dimorphism or with reproductive behavior.
Mass‐Specific and Whole‐Animal Metabolism Are Not the Same Concept
  • J. P. Hayes
  • Biology
    Physiological and Biochemical Zoology
  • 2001
TLDR
Physiological ecologists should follow the advice given in Packard and Boardman’s (1988) seminal paper and avoid analyzing massspecific variables whenever possible.
The evolution of energetics in eutherian “insectivorans”: an alternate approach
  • B. McNab
  • Biology, Environmental Science
    Acta Theriologica
  • 2010
An analysis of standard energetics in 57 species of “insectivorans”, small eutherians that preferentially feed on soil invertebrates, indicated that a combination of climate, the use of torpor,
Flexibility in metabolic rate in a small Afrotropical bird Zosterops virens.
TLDR
Flexibility in avian basal metabolic rate seems to be linked to flexibility in the masses of certain organs and in the metabolic intensities of certain tissues, and depends primarily on body mass, but also on various environmental factors, including thermal acclimation and seasonal acclimatisation.
Minimizing energy expenditure facilitates vertebrate persistence on oceanic islands
The characteristics of terrestrial vertebrates on oceanic islands are examined. They often include a reduced body size, a tolerance of conspecifics, flightlessness, a reduced basal rate of
Reduction of Energetic Demands through Modification of Body Size and Routine Metabolic Rates in Extremophile Fish
TLDR
The results of this study indicate that adaptation to extreme environments directly impacts energy metabolism, with fish living in cave and sulfide spring environments expending less energy overall during routine metabolism.
Geographic and temporal correlations of mammalian size reconsidered: a resource rule
  • B. McNab
  • Environmental Science
    Oecologia
  • 2010
TLDR
The correlation of mammalian size with geography and time reflects the impact of temperature, rainfall, and season on primary production, as well as the necessity in the case of some species to share resources with competitors.
hyperoxia reduces costs of digestion in snakes: potential bioenergetic consequences of the paleoatmosphere
TLDR
A series of three repeated-measures trials conducted on Western diamondback rattlesnakes under oxygen concentrations ranging from 21% to 50% revealed that hyperoxia did not affect resting metabolic rates, but that 35% O 2 was sufficient to reduce specific dynamic action by an average of 11%.
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