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Evolution in spatial predator-prey models and the "prudent predator": The inadequacy of steady-state organism fitness and the concept of individual and group selection

C. Goodnight, E. Rauch, H. Sayama, M. A. M. De Aguiar, M. Baranger, Y. Bar-yam, Complexity 13, 5 (2008).

  • Full Article
  • Press Release
  • Complexity

    Related Work:   
  • Chapters 6 and 7 from Making Things Work
  • NECSI Research on Evolution and Ecology


  • Genes are inherited, but how about the environment? Children inherit many things from their parents, not only genes. New scientific results show that what a parent leaves to its children is important generally in evolution---and has implications for human survival in the future.

    Scientists at the New England Complex Systems Institute (NECSI) recently determined that current models of evolution are inadequate since they do not accurately account for how organisms interact with their environment. Published in the journal Complexity, the study introduces a new evolutionary concept to describe this interaction: environmental inheritance. (From Press Release)

    Abstract

    We review recent research which reveals: (1) how spatially distributed populations avoid overexploiting resources due to the local extinction of over-exploitative variants, and (2) how the
    conventional understanding of evolutionary processes is violated by
    spatial populations so that basic concepts, including fitness
    assignment to individual organisms, are not applicable, and even kin
    and group selection are unable to describe the mechanism by which
    exploitative behavior is bounded. To understand these evolutionary
    processes a broader view is needed of the properties of multiscale
    spatiotemporal patterns in organism-environment interactions. We
    discuss measures that quantify the effects of these interactions on
    the evolution of a population, including multi-generational fitness
    and the heritability of the environment.


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