Punctuated equilibrium and criticality in a simple model of evolution

Punctuated equilibrium and criticality in a simple model of evolution

A simple and robust model of biological evolution of an ecology of interacting species is introduced. The model self-organizes into a critical steady state with intermittent coevolutionary avalanches of all sizes; i.e., it exhibits punctuated equilibrium'' behavior. This collaborative evol...

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Bibliographic Details
Published in:Physical review letters Vol. 71; no. 24; pp. 4083 - 4086
Main Authors: Bak, P, Sneppen, K
Format: Journal Article
Language:English
Published: United States 13-12-1993
Subjects:
550100 - Behavioral Biology
BASIC BIOLOGICAL SCIENCES
BIOLOGICAL EVOLUTION
ECOLOGY
MATHEMATICAL MODELS
RANDOMNESS
STEADY-STATE CONDITIONS
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Summary:A simple and robust model of biological evolution of an ecology of interacting species is introduced. The model self-organizes into a critical steady state with intermittent coevolutionary avalanches of all sizes; i.e., it exhibits punctuated equilibrium'' behavior. This collaborative evolution is much faster than non-cooperative scenarios since no large and coordinated, and hence prohibitively unlikely, mutations are involved.
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content type line 23
AC02-76CH00016
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.71.4083