点击次数：

论文类型：期刊论文

发表时间：2014-02-15

发表刊物：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

收录刊物：SCIE、EI、Scopus

卷号：396

页面范围：108-113

ISSN号：0378-4371

关键字：Gause's principle; Interspecific competition; Exclusion; Ability to prey; Aggregation degree

摘要：In this paper, we study the law of survival for species in interspecific competition in the cyclic and predator-prey system. In our model, the successful rate for a predator to prey depends on the individual ability to prey and the two interacting clusters sizes, and the size of a cluster is determined by the aggregation degree between individuals. Experimental results show that only one species can survive when competition occurs on one niche. And which species can survive ultimately depends on the relative relationship between the average individual ability to prey and the aggregation degree between it and its competing species. If competing species have identical values for the average individual ability to prey and the aggregation degree, the species that can survive is determined at random. Therefore, Gause's Competitive Exclusion Principle is correct, but the causes of competing species to survive are different. (C) 2013 Elsevier B.V. All rights reserved.