To be confirmed after the rotation year

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Mutualisms --interactions in which both partners receive a net benefit-- have longfascinated biologists. In contrast to the evolution of altruism --beneficial interactionswithin a species-- the evolution of mutualism is less well understood. Here we willdevelop a theory for the evolution of mutualism based on a mathematical model forinteractors in a collection of demes, using an adaptive dynamics approach. Animportant factor in the evolution of mutualism is aggregated dispersal. We will studyhow clumps of dispersers of different species can favour the evolution of a mutualismand whether, if a mutualism exists, aggregation will evolve.TBC