Lattice-based models of dispersal , Jeff Achter

Populations are rarely spread uniformly throughout space; patchiness
prevails.  Understanding the sources and consequences of this
spatial heterogeneity is important for the biologist.

C. Webb and I investigate a class of lattice-based models of sessile
organisms which disperse their seeds locally, globally, or
according to a mixed strategy.  In this talk, I present both
simulations and analytic results which explain the spatial patterning
which emerges from such a strategy.  I also discuss how such a
strategy affects the population's vulnerability to disturbance.