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论文类型：期刊论文

发表时间：2005-01-01

发表刊物：INTERNATIONAL JOURNAL OF MODERN PHYSICS C

收录刊物：Scopus、SCIE

卷号：16

期号：1

页面范围：177-190

ISSN号：0129-1831

关键字：predator-prey; evolution; cellular automata; coexistence and perdition

摘要：This paper describes a cellular automata model containing movable wolves, sheep and reproducible grass. Each wolf or sheep is characterized by Penna bitstrings. In addition, we introduce the energy rule and the predator-prey mechanism for wolf and sheep. With considering age-structured, genetic strings, minimum reproduction age, cycle of the reproduction, number of offspring, we get three possible states of a predator-prey system: the coexisting one with predators and prey, the absorbing one with prey only, and the empty one where no animal survived. In this paper, we mainly discuss the effect of the number of poor genes, the energy supply (food), the minimum reproduction age, the reproductive cycle and the birth rate on the above three possible final states.