Growth, competition and cooperation in spatial population genetics

TY - JOUR

T1 - Growth, competition and cooperation in spatial population genetics

AU - Pigolotti, Simone

AU - Benzi, R.

AU - Perlekar, P.

AU - Jensen, Mogens Høgh

AU - Toschi, F.

AU - Nelson, D.R.

PY - 2013/3/1

Y1 - 2013/3/1

N2 - 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.

AB - 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.

U2 - 10.1016/j.tpb.2012.12.002

DO - 10.1016/j.tpb.2012.12.002

M3 - Journal article

C2 - 23298763

SN - 0040-5809

VL - 84

SP - 72

EP - 86

JO - Theoretical Population Biology

JF - Theoretical Population Biology

ER -