We studied the white-tailed antelope ground squirrel during spring and summer 2006 to determine young-of-the-year and adult sex ratios in the Indian Wells Valley, San Bernardino County, California. We calculated a young-of-the-year sex ratio of 1.45:1 (female to male), whereas the adult sex ratio was approximately 1:1. Our young-of-the-year sex ratio was greater than the 1.1:1 (female to male) natal sex ratio previously reported. Differences between young-of-the-year and adult sex ratios may represent low female young-of-the-year survivorship in the Indian Wells Valley.
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1 December 2008
Sex Ratios of the White-tailed Antelope Ground Squirrel (Ammospermophilus leucurus), Indian Wells Valley, San Bernardino County, California
Charles J. Randel,
Howard O. Clark
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Western North American Naturalist
Vol. 68 • No. 4
December 2008
Vol. 68 • No. 4
December 2008
Ammospermophilus leucurus
California
Indian Wells Valley
sex ratios
white-tailed antelope ground squirrel