Allometric growth, life-history invariants and population energetics

Evan P. Economo, Andrew J. Kerkhoff, Brian J. Enquist

Research output: Contribution to journalReview article

29 Scopus citations

Abstract

Population and community level processes must be at least partially determined by variation in the body sizes of constituent individuals, implying quantitative scaling relations can be extended to account for variation in those processes. Here we integrate allometric growth and life-history invariant theories, and use this approach to develop theory describing the energetics of stationary populations. Our predictions approximate, with no free parameters, the scaling of production/biomass and assimilation/biomass ratios in mammalian populations and work partially for fish populations. This approach appears to be a promising direction and suggests the need for further development of the growth and life-history models, and extensions of those theories.

Original languageEnglish (US)
Pages (from-to)353-360
Number of pages8
JournalEcology letters
Volume8
Issue number4
DOIs
StatePublished - Apr 1 2005

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Keywords

  • Allometric growth
  • Allometry
  • Bioenergetics
  • Efficiency
  • Life-history invariants
  • Metabolism
  • Population energetics
  • Production
  • Scaling

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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