Karyotypes of the Long-Tailed Vole (Microtus longicaudus) in Isolated Mountain Ranges of the American Southwest

Jennifer K. Frey; Benjamin J. Frey; Dwight W. Moore

doi:10.3398/064.069.0313

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Jennifer K. Frey,^1,2,3 Benjamin J. Frey,^1,2 Dwight W. Moore^4,5

¹Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131.
²Present address: Department of Fish, Wildlife, and Conservation Ecology, and The Vertebrate Museum, Department of Biology, New Mexico State University, Box 30003, Campus Box 4901, Las Cruces, NM 88003. E-mail: jfrey@nmsu.edu
³Present address: Frey Biological Research, Box 294, Radium Springs, NM 88054.
⁴Division of Biological Sciences and Schmidt Museum of Natural History, Emporia State University, Emporia, KS 66801.
⁵Present address: Aperio Scientific / ProPharma Group, 10975 Benson Drive, Suite 330, Overland Park, KS 66210.

Abstract

The long-tailed vole (Microtus longicaudus) exhibits karyotypic variation in western North America. In the American Southwest, the species has a disjunct, relict distribution. However, karyotypes obtained from 20 specimens in 5 isolated mountain ranges (White Mountains, Arizona; Mount Taylor and the Sangre de Cristo, Jemez, and Mogollon mountains, New Mexico) exhibited no variation. These and previously reported karyotypes from the region had a diploid number (2n) of 56 and fundamental number (FN) of 84, which is the most commonly reported karyotype for the species.

Citation Download Citation

Jennifer K. Frey, Benjamin J. Frey, and Dwight W. Moore "Karyotypes of the Long-Tailed Vole (Microtus longicaudus) in Isolated Mountain Ranges of the American Southwest," Western North American Naturalist 69(3), 388-390, (1 September 2009). https://doi.org/10.3398/064.069.0313

Received: 31 October 2008; Accepted: 1 April 2009; Published: 1 September 2009

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