Thirteen-lined Ground Squirrel - Spermophilus tridecemlineatus
Global Rank:
G5
State Rank:
S4
Agency Status
USFWS:
none
USFS:
none
BLM:
none
CFWCS Tier:
3
General Description
We do not yet have descriptive information on this species. Please try the buttons above to search for information from other sources.
Distribution
Montana Range
Observations in Montana: 131
Montana CountiesBig Horn, Blaine, Carter, Custer, Dawson, Fallon, Fergus, Garfield, Glacier, McCone, Musselshell, Phillips, Powder River, Prairie, Richland, Roosevelt, Rosebud, Sheridan, Teton, Valley, Wibaux, Yellowstone
Migration
Non-migratory.
Habitat
Tallgrass, brushy edges, herbaceous vegetation, dense cover. However, also occurs in shortgrass and sagebrush, upland meadows. May prefer grazed and mowed grasslands.
Food Habits
Insects are an important dietary component in spring, sum- mer, and early fall--sometimes influencing habitat selec- tion. Seeds, grasses, flowers, and fruits form the remain- der. Will prey on small vertebrates.
Ecology
Beneficial in that it consumes many insects. Sometimes ostrimental by destroying newly planted grain.
Reproductive Characteristics
Breeds in Apr-early May (appr. 5 days after females emerge). Induced ovulation. Probably monestrous in Montana.
Citations & Sources
Additional Sources of Information Related to "Mammals"