6533b7d4fe1ef96bd1262a40

RESEARCH PRODUCT

Nonmonotonic behavior of spatiotemporal pattern formation in a noisy Lotka-Volterra system

A. FiasconaroD. ValentiBernardo Spagnolo

subject

Coupled Map LatticeSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciStatistical Mechanics (cond-mat.stat-mech)Noise-induced pattern formationMultiplicative noiseQuantitative Biology::Populations and EvolutionFOS: Physical sciencesInteracting speciesCoupled Map Lattice; Multiplicative noise; Noise-induced pattern formation; Interacting speciesCondensed Matter - Statistical Mechanics

description

The noise-induced pattern formation in a population dynamical model of three interacting species in the coexistence regime is investigated. A coupled map lattice of Lotka-Volterra equations in the presence of multiplicative noise is used to analyze the spatiotemporal evolution. The spatial correlation of the species concentration as a function of time and of the noise intensity is investigated. A nonmonotonic behavior of the area of the patterns as a function of both noise intensity and evolution time is found.

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