I D EAS AND PERSPECT IVES Allometric growth, life-history invariants and population energetics
نویسندگان
چکیده
Evan P. Economo,* Andrew J. Kerkhoff and Brian J. Enquist Section of Integrative Biology, University of Texas at Austin, 1 University Station A6700, Austin, TX 78712, USA Department of Ecology and Evolutionary Biology, University of Arizona, Biosciences West, Tucson, AZ 85721, USA *Correspondence: E-mail: [email protected] 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.
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