We evaluated Ictidomys tridecemlineatus for sexual dimorphism by taking 40 skeletal measurements from 267 specimens from Texas, New Mexico, and Oklahoma. We compared measurements from males and females using discriminant-function analysis with included analyses of variance. Males and females were significantly different overall. Of the nine characters that were significantly different, eight were larger in males, while females had a greater sacrum width.
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1 September 2017
Sexual Size Dimorphism in the Thirteen-Lined Ground Squirrel (Ictidomys tridecemlineatus)
E. Gus Cothran,
John L. Hunt,
Troy L. Best
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The Southwestern Naturalist
Vol. 62 • No. 3
September 2017
Vol. 62 • No. 3
September 2017