SELF-ORGANIZED CRITICAL MODEL OF BIOLOGICAL EVOLUTION

被引：9

作者：

CHAU, HF

MAK, L

KWOK, PK

机构：

[1] UNIV ILLINOIS,COORDINATED SCI LAB,URBANA,IL 61801

[2] UNIV ILLINOIS,DEPT MATH,URBANA,IL 61801

来源：

PHYSICA A | 1995年 / 215卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0378-4371(95)00027-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A punctuated equilibrium model of biological evolution with relative fitness between different species being the fundamental driving force of evolution is introduced. Mutation is modeled as a fitness updating cellular automaton process where the change in fitness after mutation follows a Gaussian distribution with mean x > 0 and standard deviation sigma. Scaling behaviors are observed in our numerical simulation, indicating that the model is self-organized critical. Besides, the numerical experiment suggests that models with different x and sigma belong to the same universality class.

引用

页码：431 / 438

页数：8