Abstract

The dispersion of matrilineally related females was examined within a high-density population of Columbian ground squirrels (Spermophilus columbianus) in southwestern Alberta. Females tended to nest near their natal site when no other female occupied it. Breeding females spaced themselves evenly so that close relatives formed intact groups but not dense clusters. The kin group was typically composed of a mother with one or two daughters that were nonlittermate sisters. Females appeared to be attracted to natal areas and the resources they contained, perhaps burrows.

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