We evaluated movement distance (an index of home range size) based on capture histories of 32 postbreeding Townsend ground squirrels (Spermophilus townsendii) on a 15 × 15 trap grid in southwestern Idaho. Capture frequencies and movement distances of adult males were significantly greater than those of other sex/age groups. Members of the same sex/age group were rarely captured at the same grid location, evidence of mutual avoidance within sex/age groups. These results are compared with those for other species of ground squirrels.
Nydegger, Nicholas C. and Johnson, Donald R.
"Size and overlap of Townsend ground squirrel home ranges,"
Great Basin Naturalist: Vol. 49
, Article 13.
Available at: http://scholarsarchive.byu.edu/gbn/vol49/iss1/13