Impact of Landscape Topology and Spatial Heterogeneity on the Shape and Parameters of Dispersal Kernels (Invited)
Abstract
An evolutionary game theoretic approach is applied to the evolution of dispersal in explicitly spatial metacommunities. It is shown that there exists a strong selective pressure on the shape of the kernel as well as in the mean dispersal distances.The shape and most importantly the tail structure are crucially affected by landscape topology with the optimal dispersal kernels in the river network topology being more stable and with heavier tails than those in the direct-e.g,planar-topology. Spatial heterogeneity is shown to enable spatial coexistence and also controls the spatial distribution of distinct groups of dispersal strategies.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2010
- Bibcode:
- 2010AGUFM.B22C..03R
- Keywords:
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- 0439 BIOGEOSCIENCES / Ecosystems;
- structure and dynamics;
- 0466 BIOGEOSCIENCES / Modeling;
- 1813 HYDROLOGY / Eco-hydrology