Growth, competition and cooperation in spatial population genetics
Authored by S Pigolotti, R Benzi, P Perlekar, M H Jensen, F Toschi, D R Nelson
Date Published: 2013
DOI: 10.1016/j.tpb.2012.12.002
Sponsors:
United States National Science Foundation (NSF)
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Model Documentation:
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Abstract
We study an individual based model describing competition in space
between two different alleles. Although the model is similar in spirit
to classic models of spatial population genetics such as the stepping
stone model, here however space is continuous and the total density of
competing individuals fluctuates due to demographic stochasticity. By
means of analytics and numerical simulations, we study the behavior of
fixation probabilities, fixation times, and heterozygosity, in a neutral
setting and in cases where the two species can compete or cooperate. By
concluding with examples in which individuals are transported by fluid
flows, we argue that this model is a natural choice to describe
competition in marine environments. (C) 2013 Elsevier Inc. All rights
reserved.
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systems
Distance
Flows