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Article Dans Une Revue Journal of Theoretical Biology Année : 2009

Relatedness in spatially structured populations with empty sites: An approach based on spatial moment equations

Résumé

Taking into account the interplay between spatial ecological dynamics and selection is a major challenge in evolutionary ecology. Although inclusive fitness theory has proven to be a very useful tool to unravel the interactions between spatial genetic structuring and selection, applications of the theory usually rely on simplifying demographic assumptions. In this paper, I attempt to bridge the gap between spatial demographic models and kin selection models by providing a method to compute approximations for relatedness coefficients in a spatial model with empty sites. Using spatial moment equations, I provide an approximation of nearest-neighbour relatedness on random regular networks, and show that this approximation performs much better than the ordinary pair approximation. I discuss the connection between the relatedness coefficients I define and those used in population genetics, and sketch some potential extensions of the theory.
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Dates et versions

hal-00554622 , version 1 (11-01-2011)

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Sébastien Lion. Relatedness in spatially structured populations with empty sites: An approach based on spatial moment equations. Journal of Theoretical Biology, 2009, 260 (1), pp.121. ⟨10.1016/j.jtbi.2009.05.035⟩. ⟨hal-00554622⟩

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