American Society of Mammalogists Taxonomic Status and Biogeography of the Southern Bog Lemming, Synaptomys cooperi, on the Central Great Plains Author(s): Gregory M. Wilson and Jerry R. Choate Source: Journal of Mammalogy, Vol. 78, No. 2 (May, 1997), pp. 444-458 Published by: American Society of Mammalogists Stable URL: http://www.jstor.org/stable/1382897 . Accessed: 11/08/2011 18:26 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact
[email protected]. American Society of Mammalogists is collaborating with JSTOR to digitize, preserve and extend access to Journal of Mammalogy. http://www.jstor.org TAXONOMIC STATUS AND BIOGEOGRAPHY OF THE SOUTHERN BOG LEMMING, SYNAPTOMYS COOPERI, ON THE CENTRAL GREAT PLAINS GREGORY M. WILSON AND JERRY R. CHOATE Present address of GMW: Department of Zoology, 430 Life Sciences West, Oklahoma State University, Stillwater, OK 74078 Sternberg Museum of Natural History, Fort Hays State University, Hays, KS 67601 We assessed geographic and nongeographic variation among populations of the southern bog lemming (Synaptomys cooperi) in Arkansas, Iowa, Illinois, Kansas, Missouri, Nebraska, and South Dakota based on morphological data. Univariate and multivariate analyses of 15 cranial characters revealed no consistent sexual dimorphism. Geographic variation in cra- nial morphology of adults varied clinally, with individuals increasing in size from north to south and east to west.