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Montana Animal Field Guide

Montana Field Guides

Thirteen-lined Ground Squirrel - Spermophilus tridecemlineatus

  • Thirteen-lined Ground Squirrel
  • Thirteen-lined Ground Squirrel
  • Thirteen-lined Ground Squirrel
  • Thirteen-lined Ground Squirrel
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Global Rank: G5
State Rank: S4

Agency Status
USFWS: none
USFS: none
BLM: none
CFWCS Tier: 3
 

General Description
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General Distribution
Montana Range



Western Hemisphere Range

 


Summary of Observations Submitted for Montana
Number of Observations: 125

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Records associated with a range of dates are excluded from time charts)



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"
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Citation for data on this website:
Thirteen-lined Ground Squirrel — Spermophilus tridecemlineatus.  Montana Field Guide.  Retrieved on February 9, 2010, from http://FieldGuide.mt.gov/detail_AMAFB05090.aspx
 
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