InterJournal Complex Systems, 99
Status: Accepted
Manuscript Number: [99]
Submission Date: 971008
Spatial correlations in the contact process: a step toward better ecological models
Author(s): Robin Snyder

Subject(s): CX.19, CX.04, CX.34

Category: Article

Abstract:

Many ecologists now believe that heterogeneity in the spatial distribution of predator and prey populations may help stabilize population levels over time. This heterogeneity is thought to emerge naturally as a result of the local nature of interactions. As a first step toward developing population models which take spatial correlations into account, I have investigated spatial heterogeneity in the 2-dimensional contact process, a very simple population model. I present data and simple theoretical predictions for several measures of heterogeneity and note which predictions appear to be robust even in the presence of fairly strong correlations.

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