Evolutionary Ecology

, Volume 7, Issue 3, pp 287–305 | Cite as

Metaphysiological and evolutionary dynamics of populations exploiting constant and interactive resources:R—K selection revisited

  • Wayne M. Getz


I begin by reviewing the derivation of continuous logistic growth and dynamic consumer—resource interaction equations in terms of specific resource extraction and biomass conversion functions that are considered to hold at a population level. Evolutionary stable strategy (ESS) methods are discussed for analysing populations modelled by these equations. The question of selection trade-offs is then considered, particularly in the context of populations being efficient at extracting resources versus converting resources to their own biomass. Questions relating to single populations with high versus low conversion rates and interacting populations with high versus low self-interference rates are also considered. The models discussed here demonstrate conclusively that self-interference is an essential part of any consumption process: without it population growth and interaction processes do not make any sense. The analysis clarifies concepts relating to the somewhat discredited notion ofr—K selection.


evolutionary dynamics populations interactive resources 


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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • Wayne M. Getz
    • 1
  1. 1.Department of EntomologyUniversity of CaliforniaBerkeleyUSA

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