Abstract
In a recent paper, Hassell et al. (1995), building on previous work by Bascompte & Sole (1994), investigated the dynamic properties of a set of intrinsically identical populations linked by dispersal: a metapopulation. They demonstrated that, for their model, the stability properties of the local populations within the metapopulation were identical to those of a similar isolated population. That is, if the populations were stable when isolated, then no matter how much dispersal was added, the populations would not destabilize; similarly, unstable populations could not be stabilized by dispersal. Rohani, May & Hassell (1996) generalized this result to multi-species models. Hassell et al.'s results hold providing the population growth and dispersal terms are identical for each patch, and providing dispersal is of a passive density-independent form.
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