Stochastic effects on biodiversity in cyclic coevolutionary dynamics

Details Stochastic effects on biodiversity in cyclic coevolutionary dynamics Stochastic effects on biodiversity in cyclic coevolutionary dynamics

2006-10-05

arxiv.org/abs/q-bio/0610014v1

Banach Center Publications Vol. 80, 259-264 (2008)

Biology

Quantitative Biology

Populations and Evolution

5 pages, 2 figures. Proceedings paper of the workshop "Stochastic models in biological sciences" (May 29 - June 2, 2006 in War

Scientific paper

10.4064/bc80-0-17

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.

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