Bibliography and Citations

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Yensen E., Kirkland G.L.  1998.  Synaptomys borealis (Richardson 1828): northern bog lemming.  
Yensen E, Baird CR, Sherman PW.  1996.  Larger ectoparasites of the Idaho ground squirrel (Spermophilus brunneus).  Great Basin Naturalist.  56(3):237-246.  Available from http://scholarsarchive.byu.edu/gbn/vol56/iss3/6/
Yensen E.  1985.  Taxonomy, distribution, and population status of the Idaho ground squirrel, Spermophilus brunneus.  
Yensen E, Sherman PW.  2003.  Ground-dwelling squirrels of the Pacific Northwest. Hooper WP, editor. Boise (ID): U. S. Fish & Wildlife Service, Snake River Fish and Wildlife Office; Bureau of Land Management, Spokane District Office and Oregon State Office.  
Yensen E..  1988.  Letter to Craig Groves, Idaho Natural Heritage Program, containing information on 2 new Spermophilus brunneus colonies.  
Yensen E..  2000.  Conservation survey of three species of western "small-eared" ground squirrels.  
Yensen E, Tarifa T, Stitt R, Bond P, Evans Mack D.  2010.  Diets of northern Idaho ground squirrels and cattle at two sites in Adams County, Idaho in 2008.  
Yensen E..  1986.  Letter to Craig Groves, Idaho Natural Heritage Program, regarding locations of two sightings and one specimen of Spermophilus variegatus.  
Yensen E.  2008.  Southern Idaho ground squirrel surveys on Soulen Livestock Company lands, 2008 annual report and final report.  Prepared for U.S. Fish and Wildlife Service, Snake River Basin Office.  
Yensen E.  2000.  Additional surveys for southern Idaho ground squirrels, Spermophilus brunneus endemicus.  Unpublished report prepared for U. S Fish and Wildlife Service, Snake River Basin Office.  
Yensen D.  1980.  A grazing history of Southwestern Idaho with emphasis on the Birds of Prey Study Area.  USDI-BLM Snake River Birds of Prey Research Project.  
Yensen E, Quinney DL.  1992.  Can Townsend's Ground Squirrel survive on a diet of exotic annuals? Great Basin Naturalist.  52(3):269-277.
Yensen E..  2004.  Excel Spreadsheet of ground squirrel locations.  
Yensen E..  2005.  Surveys for southern Idaho ground squirrels on Soulen Livestock Company lands: 2005 annual report.  
Yensen E..  2005.  Survey for southern Idaho ground squirrels on Soulen Livestock Company lands.  A report for U. S. Fish and Wildlife Service, Snake River Basin Office, Boise, ID..  
Yensen E..  1998.  Wyoming ground squirrel.  
Yensen E..  2001.  The ecological role of ground squirrels and a "field guide" to northwestern species, Abstract.  Journal of the Idaho Academy of Science.  37(1):42-44.
Yensen E.  2001.  Population estimate for the southern Idaho ground squirrel (Spermophilus brunneus endemicus).  Unpublished report for U. S. Fish and Wildlife Service.  
Yensen E..  1998.  Spermophilus brunneus (A. H. Howell 1928): Idaho ground squirrel.  
Yensen E..  2004.  Spreadsheet of historic Piute ground squirrel observations and museum records compiled from a variety of sources.  
Yensen E.  2004.  Nutrient analysis of plant species in northern Idaho ground squirrel diets, final report, 2000-2002.  Unpublished report for U.S. Fish and Wildlife Service.  
Yensen E, Quinney DL, Johnson K, Timmerman K, Steenhof K.  1992.  Fire, vegetation changes, and population fluctuations of Townsend's ground squirrels.  American Midland Naturalist.  128(2):299-312.
Yensen E., Sherman P.W.  2001.  Demise of the small-eared ground squirrels, Abstract.  Journal of the Idaho Academy of Science.  37(1):74-76.
Yensen E., Sherman P.W.  1996.  Ground squirrels, Smokey the Bear, and the death of an ecosystem. Abstract.  Journal of the Idaho Academy of Science.  32(1/2):62-63.
Yensen D.L.  1981.  The 1900 invasion of alien plants into southern Idaho.  Great Basin Naturalist.  41(2):176-183.