The model
Dispersal models have been used to describe the implications of
dispersal on the fitness of species that persist within a single habitat
(Cohen, 1966, 1967; Fretwell and Lucas, 1970; Bulmer, 1984; Cohen and
Levin, 1991), and dispersal ratios have been fixed (Hastings, 1983).
Although, in some of these models, multiple sub-habitats are considered
through the dispersal into or out of the stated sub-habitat, the models
are not equipped to investigate the impact of dispersing into and out of
multiple sub-habitats at once.