To be confirmed after the rotation year

互惠关系——双方都能获得净利益的互动——长期以来一直令生物学家着迷。与利他主义的进化——一个物种内部有益的相互作用——相比，互惠主义的进化不太为人所知。在这里，我们将采用自适应动力学的方法，基于一个数学模型来发展互利共生的进化理论。共生进化的一个重要因素是聚集扩散。我们将研究不同物种的分散体如何有利于共生的进化，以及如果共生存在，聚合体是否会进化。TBC)

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