Matjaž Perc (Avtor), Attila Szolnoki (Avtor)

Povzetek

We study a stochastic predator-prey model on a square lattice, where each of the six species has two superior and two inferior partners. The invasion probabilities between species depend on the predator-prey pair and are supplemented by Gaussian noise. Conditions are identified that warrant the largest impact of noise on the evolutionary process, and the results of Monte Carlo simulations are qualitatively reproduced by a four-point cluster dynamical mean-field approximation. The observed noise-guided evolution is deeply routed in short-range spatial correlations, which is supported by simulations on other host lattice topologies. Our findings are conceptually related to the coherence resonance phenomenon in dynamical systems via the mechanism of threshold duality. We also show that the introduced concept of noise-guided evolution via the exploitation of threshold duality is not limited to predator-prey cyclical interactions, but may apply to models of evolutionary game theory as well, thus indicating its applicability in several different fields of research.

Ključne besede

dinamični sistemi;stohastični procesi;metode Monte Carlo;ciklični procesi;ciklične interakcije;prehranjevalna veriga;simulacije pretoka;evolucijski pojavi;dynamic systems;stochastic processes;cyclical interactions;evolutionary rules;flow simulations;Monte Carlo simulations;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FNM - Fakulteta za naravoslovje in matematiko
UDK: 519.83
COBISS: 15669000 Povezava se bo odprla v novem oknu
ISSN: 1367-2630
Št. ogledov: 1556
Št. prenosov: 347
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: dinamični sistemi;stohastični procesi;metode Monte Carlo;ciklični procesi;ciklične interakcije;prehranjevalna veriga;simulacije pretoka;evolucijski pojavi;
URN: URN:SI:UM:
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 1-13
Letnik: ǂVol. ǂ9
Zvezek: 267
Čas izdaje: Avg. 2007
DOI: 10.1088/1367-2630/9/8/267
ID: 8724133