Northern Prairie Wildlife Research Center
Movements and Habitat Use of Franklin's
Ground Squirrels in Duck-Nesting Habitat
Jane Chormanski-Norris, Erik K. Fritzell, and Alan B. Sargeant
Abstract: We used radio telemetry to determine the movements and
habitat use patterns of adult Franklin's ground squirrels (Spermophilus franklinii)
on a 152-ha Waterfowl Production Area (WPA) in central North Dakota. The squirrels
were diurnal. Mean total distance traveled daily was 213 and 153 m for males
and females, respectively. Movements of females decreased during gestation and
lactation; those of both sexes decreased prior to immergence. Annual home ranges
averaged 24.6 and 8.7 ha for males and females, respectively; biweekly home-range
sizes exhibited seasonal patterns. Ground squirrels restricted their activities
almost exclusively to the WPA. Use of blocks of herbaceous cover on the WPA
could not be explained by vegetation height, density, or litter depth. Ground
squirrel movements were influenced by locations of burrow systems and patchily
distributed food resources. Periodic cultivation or removal of herbaceous vegetation
may inhibit use of upland duck-nesting habitat by ground squirrels.
This resource is based on the following source (Northern Prairie Publication
0728):
Choromanski-Norris, Jane, Erik K. Fritzell, and Alan B. Sargeant. 1989.
Movements and habitat use of franklin's ground squirrels in duck-
nesting habitat. Journal of Wildlife Management 53(2):324-331.
This resource should be cited as:
Choromanski-Norris, Jane, Erik K. Fritzell, and Alan B. Sargeant. 1989.
Movements and habitat use of franklin's ground squirrels in duck-
nesting habitat. Journal of Wildlife Management 53(2):324-331.
Jamestown, ND: Northern Prairie Wildlife Research Center Online.
http://www.npwrc.usgs.gov/resource/mammals/fgsquirl/index.htm
(Version 02APR2002).
Table of Contents
Tables and Figures
- Table 1 -- Mean daily distance traveled
(m) by adult Franklin's ground squirrels during biweekly sample periods
on a study area in North Dakota, 1981-82.
- Table 2 -- Mean biweekly and annual
home-range sizes (ha) of adult Franklin's ground squirrels on a study area
in North Dakota 1981-82.
- Table 3 -- Percent availability, percent
use, and electivity index of upland habitats used by active adult Franklin's
ground squirrels and percent of burrows within habitats in North Dakota,
1981 and 1982 combined.
- Figure 1 -- Distribution of 4,430 telemetry
locations of active adult ground squirrels on and adjacent to a 152-ha WPA
during 1981-82.
Jane Chormanski-Norris* and Erik K. Fritzell, School of
Forestry, Fisheries and Wildlife University of Missouri, Columbia, MO 65211
Alan B. Sargeant, U.S. Fish and Wildlife Service, Northern Prairie
Wildlife Research Center, Jamestown, ND 58402
* Present address: Minnesota Department of Natural Resources, 500
Lafayette Road, St. Paul, MN 55155
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