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  • Segregation process and phase transition in cyclic predator-prey models with an even number of species
    Szabó, György, 1950- ; Szolnoki, Attila ; Sznaider, Gustavo Ariel
    We study a spatial cyclic predator-prey model with an even number of species (for n=4, 6, and 8) that allows the formation of two defensive alliances consisting of the even and odd label species. The ... species are distributed on the sites of a square lattice. The evolution of spatial distribution is governed by iteration of two elementary processes on neighboring sites chosen randomly: if the sites are occupied by a predator-prey pair then the predator invades the prey's site; otherwise the species exchange their sites with a probability X. For low X values, a self-organizing pattern is maintained by cyclic invasions. If X exceeds a threshold value, then two types of domain grow up that are formed by the odd and even label species, respectively. Monte Carlo simulations indicate the blocking of this segregation process within a range of X for n=8.
    Source: Physical review. E, Statistical, nonlinear, and soft matter physics. - ISSN 1539-3755 (Vol. 76, iss. 5, 2007, str. 051921-1-051921-5)
    Type of material - article, component part
    Publish date - 2007
    Language - english
    COBISS.SI-ID - 1024041564
    DOI

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