Abstract
The population biology of white-footed mice (Peromyscus leucopus) inhabiting a 1.4-ha naturally occurring dispersal sink was studied for 5 years in west-central Indiana and compared with that in surrounding old-growth habitat. Densities in the dispersal sink were consistently lower than in prime habitat. Autumn and winter survival were practically nil. The sink was recolonized by adults in the spring following extreme low winter densities or extinction. Summer reproductive rates and the pattern of territoriality were similar to those in prime habitat. Mice colonized elsewhere when empty prime habitat was made experimentally available. The data suggest that few dispersing mice can be accommodated by the dispersal sink.
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