Range Expansion of the Western Gray Squirrel (Sciurus griseus) in Northeastern California

John O. Matson; William F. Laudenslayer Jr.; Stephanie A. Trewhitt; Mary Flores

doi:10.3398/064.070.0219

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John O. Matson,^1,2 William F. Laudenslayer Jr.,³ Stephanie A. Trewhitt,¹ Mary Flores⁴

¹Department of Biological Sciences, San José State University San José, CA95192-0100.
²E-mail: johnomatson@gmail.com
³BoX 3536, Lake City, CA 96115.
⁴Warner Mountain Ranger District, Modoc National Forest, Box 220, Cedarville, CA 96104.

Abstract

We report the first records of the western gray squirrel (Sciurus griseus) from Modoc County and eastern Lassen County in northeastern California. Specimens from Modoc County represent the first records of the species from the Great Basin geographic province. We conclude that these records represent a range expansion based upon previous fieldwork that did not report the species in the region.

Citation Download Citation

John O. Matson, William F. Laudenslayer Jr., Stephanie A. Trewhitt, and Mary Flores "Range Expansion of the Western Gray Squirrel (Sciurus griseus) in Northeastern California," Western North American Naturalist 70(2), 266-269, (1 July 2010). https://doi.org/10.3398/064.070.0219

Received: 16 March 2009; Accepted: 1 October 2009; Published: 1 July 2010

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