Spatial variability enhances species fitness in stochastic predator-prey interactions

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dc.creatorDobramysl, Ulrich
dc.creatorTauber, Uwe C.
dc.date2008-04-25
dc.date2008-11-20
dc.date.accessioned2026-07-07T12:14:27Z
dc.date.available2026-07-07T12:14:27Z
dc.descriptionWe study the influence of spatially varying reaction rates on a spatial stochastic two-species Lotka-Volterra lattice model for predator-prey interactions using two-dimensional Monte Carlo simulations. The effects of this quenched randomness on population densities, transient oscillations, spatial correlations, and invasion fronts are investigated. We find that spatial variability in the predation rate results in more localized activity patches, which in turn causes a remarkable increase in the asymptotic population densities of both predators and prey, and accelerated front propagation.
dc.description4 pages, 3 figures, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0804.4127
dc.identifierhttp://arxiv.org/abs/0804.4127
dc.identifierPhys. Rev. Lett. 101 (2008) 258102
dc.identifierdoi:10.1103/PhysRevLett.101.258102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211195
dc.subjectStatistical Mechanics
dc.subjectPopulations and Evolution
dc.titleSpatial variability enhances species fitness in stochastic predator-prey interactions
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