In Iowa, the northern grasshopper mouse (Onychomys leucogaster) previously was known only from the northwestern part of the state. Herein, we report records of O. leucogaster from the 1970s and 1980s that extend its distribution into west-central and southwestern Iowa. These records may represent dispersal movements into these parts of Iowa by southward movements from populations in northwestern Iowa or they may represent eastward movements of individuals from Nebraska prior to channelization of the Missouri River.
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1 July 2010
Records of the Northern Grasshopper Mouse (Onychomys leucogaster) in Western Iowa
Kristy K. Rickert,
Keith Geluso
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Western North American Naturalist
Vol. 70 • No. 2
July 2010
Vol. 70 • No. 2
July 2010
distribution
Iowa
Missouri River
northern grasshopper mouse
Onychomys leucogaster
records