Nonmonotonic Pattern Formation in Three Species Lotka-Volterra System with Colored Noise
Statistical Mechanics
2007-05-23 v1
Abstract
A coupled map lattice of generalized Lotka-Volterra equations in the presence of colored multiplicative noise is used to analyze the spatiotemporal evolution of three interacting species: one predator and two preys symmetrically competing each other. The correlation of the species concentration over the grid as a function of time and of the noise intensity is investigated. The presence of noise induces pattern formation, whose dimensions show a nonmonotonic behavior as a function of the noise intensity. The colored noise induces a greater dimension of the patterns with respect to the white noise case and a shift of the maximum of its area towards higher values of the noise intensity.
Keywords
Cite
@article{arxiv.cond-mat/0511510,
title = {Nonmonotonic Pattern Formation in Three Species Lotka-Volterra System with Colored Noise},
author = {A. Fiasconaro and D. Valenti and B. Spagnolo},
journal= {arXiv preprint arXiv:cond-mat/0511510},
year = {2007}
}
Comments
6 pages, 3 figures