Complementarity and diversity in a soluble model ecosystem

被引：27

作者：

de Oliveira, VM ^{[1
]}

Fontanari, JF ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 14期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1103/PhysRevLett.89.148101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Complementarity among species with different traits is one of the basic processes affecting biodiversity, defined as the number of species in the ecosystem. We present here a soluble model of microbial-based ecosystems in which the species are characterized by binary traits and their pairwise interactions follow a complementarity principle. Manipulation of the species composition, and so the study of its effects on the species diversity, is achieved through the introduction of a bias parameter favoring one of the traits. Using statistical mechanics tools we find explicit expressions for the allowed values of the equilibrium species concentrations in terms of the control parameters of the model.

引用

页码：1 / 148101

页数：4

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