References

Arenz, C; Leger, D. 1999. Thirteen-lined ground squirrel (Sciuridae : Spermophilus tridecemlineatus) antipredator vigilance: Monitoring the sky for aerial predators. Ethology 105(9):807-816.

Helgen, K., Cole, F., Helgen L. and Wilson, D. 2009. Generic Revison in the Holarctic Ground Squirrel Genus Spermophilus. Journal of Mammalogy 90(2):270-305.

Hygnstrom, S; Robert, T; Larson, G. 2005. Thirteen-lined Ground Squirrels and Their Control.  Internet Center for Wildlife Damage Control. Accessed March 28, 2010 at http://icwdm.org/handbook/rodents/13linedgroundsquirrel.asp

Luna, L. and Baird, T. 2004. Influence of density on the spatial behavior of female thirteen-lined ground squirrels, Spermophilus tridecemlineatus. The Southwestern Naturalist 49(3):350-358.

Petrella, S. 1999. "Spermophilus tridecemlineatus" (On-line), Animal Diversity Web. Accessed March 28, 2010 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Spermophilus_    tridecemlineatus.html.

Renfrew, R. and Ribic, C. 2003. Grassland passerine nest predators near pasture edges identified on videotape. The Auk 120(2):371-383.

Stapp, P. 2007. Rodent communities in active and inactive colonies of black-tailed prairie dogs in shortgrass steppe. Journal of Mammalogy 88(1):241-249.

Sterner R, Petersen B, Gaddis S, Tope K, Poss D. 2003. Impacts of small mammals and birds on low-tillage, dryland crops. Crop protection 22(4):595-602.
Streubel, D; Fitzgerald, J.  1978.  Spermophilus tridecemlineatus.  The American Society of Mammalogists Mammalian Species 103.

Timm, R; Slade, N; Pisani, G; Choate, J; Kaufman, G; Kaufman, D. Thirteen-lined Ground Squirrel. Mammals of Kansas. Accessed March 28, 2010 at http://www.ksr.ku.edu/libres/mammals_of_kansas/spermoph-13.html

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