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Gillespie-cellular-automaton

Simulating ecological processes in discrete and continuous time

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Introduction

In this project, we sought to understand the effect of simulating spatial ecological processes in discrete and continuous time. To do this, we simulated birth-death processes on a regular square lattice in continuous time employing a spatial version of the Gillespie algorithm, and in discrete time using a range of cellular automata algorithms. For more information, see: (this paper can be downloaded from gitHub Mancy_Prosser_Rogers.pdf)

Rebecca Mancy, Patrick Prosser and Simon Rogers (2013) Discrete and continuous time simulations of spatial ecological processes predict different final population sizes and interspecific competition outcomes. Ecological Modelling.

The code used in the simulations can be downloaded from GitHub as the project gillespie-cellular-automaton.