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Complex Behavior In Simple Models Of Biological Coevolution

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  • PER ARNE RIKVOLD

    (School of Computational Science, Florida State University, Tallahassee, Florida 32306-4350, USA;
    Center for Materials Research and Technology, Florida State University, Tallahassee, Florida 32306-4350, USA;
    Department of Physics, Florida State University, Tallahassee, Florida 32306-4350, USA;
    National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306-4350, USA)

Abstract

We explore the complex dynamical behavior of simple predator-prey models of biological coevolution that account for interspecific and intraspecific competition for resources, as well as adaptive foraging behavior. In long kinetic Monte Carlo simulations of these models we find quite robust1/f-like noise in species diversity and population sizes, as well as power-law distributions for the lifetimes of individual species and the durations of quiet periods of relative evolutionary stasis. In one model, based on the Holling Type II functional response, adaptive foraging produces a metastable low-diversity phase and a stable high-diversity phase.

Suggested Citation

  • Per Arne Rikvold, 2009. "Complex Behavior In Simple Models Of Biological Coevolution," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 20(09), pages 1387-1397.
    • Handle: RePEc:wsi:ijmpcx:v:20:y:2009:i:09:n:s012918310901445x
    DOI: 10.1142/S012918310901445X
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