Volume 40, Number 4, November II 1997
|Page(s)||471 - 476|
|Section||Cross-disciplinary physics and related areas of science and technology|
|Published online||01 September 2002|
Self-organized criticality in the model of biological evolution describing interaction of "coenophilous” and “coenophobous” species
Zoological Institute of the Russian Academy of Sciences,
Universitetskaya Embankment 1, 199034 St. Petersburg, Russia
2 Department of Theoretical Physics, Institute of Physics, State University of St. Petersburg, 198904 St. Petersburg, Russia
Corresponding authors: firstname.lastname@example.org email@example.com firstname.lastname@example.org
Accepted: 2 October 1997
The modification of the model of P. Bak and K. Sneppen of the self-organized biological evolution is proposed on the basis of a formalization of the scheme of the biosphere evolution suggested by O. V. Kovalev. This scheme is regarded as one approximating the realistic model of the ecosystem evolution. The fundamental difference between "coenophobous" species ("individualists") and "coenophilous" ones ("collectivists") with respect to their reaction on the external environment is represented. The dynamics of the modified model possesses the most important features of self-organized criticality: the avalanche-like processes and the punctuated equilibrium.
PACS: 87.10.+e – General, theoretical, and mathematical biophysics (including logic of biosystems, quantum biology, and relevant aspects of thermodynamics, information theory, cybernetics, and bionics) / 05.40.+j – Fluctuation phenomena, random processes and Brownian motion
© EDP Sciences, 1997
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