Invasions and range expansion
This chapter explores the spatial dynamics of invading species, paying particular attention to the patterns formed as they spread, i.e., the rate of increase of the area invaded and the rate at which their boundaries move. The development of models for population expansion — comprising a range of structures and assumptions both simple and complex — is reviewed. Rare long distance dispersal events are shown to dictate the rate of spread, the pattern in population margins, and the distribution of genotypes. Movement through heterogeneous landscapes is shown to be further affected by the connectivity and distribution of suitable patches.
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