Stochastic effects on biodiversity in cyclic coevolutionary dynamics
种群与进化
2011-12-20 v1 统计力学
生物物理
摘要
Finite-size fluctuations arising in the dynamics of competing populations may have dramatic influence on their fate. As an example, in this article, we investigate a model of three species which dominate each other in a cyclic manner. Although the deterministic approach predicts (neutrally) stable coexistence of all species, for any finite population size, the intrinsic stochasticity unavoidably causes the eventual extinction of two of them.
引用
@article{arxiv.q-bio/0610014,
title = {Stochastic effects on biodiversity in cyclic coevolutionary dynamics},
author = {Tobias Reichenbach and Mauro Mobilia and Erwin Frey},
journal= {arXiv preprint arXiv:q-bio/0610014},
year = {2011}
}
备注
5 pages, 2 figures. Proceedings paper of the workshop "Stochastic models in biological sciences" (May 29 - June 2, 2006 in Warsaw) for the Banach Center Publications