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Prairie Dog Distribution in Areas Inhabited by Black-Footed Ferrets
Conrad N. Hillman, Raymond L. Linder and Robert B. Dahlgren
The American Midland Naturalist
Vol. 102, No. 1 (Jul., 1979), pp. 185-187
Published by: The University of Notre Dame
Stable URL: http://www.jstor.org/stable/2425083
Page Count: 3
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The distribution of black-tailed prairie dog (Cynomys ludovicianus) towns was delineated in a 1490 km2 study area in Mellette County, South Dakota, and was examined to determine the characteristics of black-looted ferret (Mustela nigripes) habitat. Between 1964 and 1974, black-looted ferrets were observed on 14 prairie dog towns in this area. Eighty-six prairie dog towns, located throughout the study area, were not randomly distributed; towns were paired or clumped in spatial distribution. Mean distance between a town and its nearest neighbor was 2.4 km; mean distance between a ferret-occupied town and the nearest town was similar, 2.7 km. Management recommendations are to maintain at least eight towns per township, each at least 12 ha in size. Of these eight towns, two or more should exceed 40 ha.
The American Midland Naturalist © 1979 The University of Notre Dame