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Westward Expansion of the Eastern Fox Squirrel (Sciurus niger) in Northeastern New Mexico and Southeastern Colorado

Keith Geluso
The Southwestern Naturalist
Vol. 49, No. 1 (Mar., 2004), pp. 111-116
Stable URL: http://www.jstor.org/stable/3672279
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Westward Expansion of the Eastern Fox Squirrel (Sciurus niger) in Northeastern New Mexico and Southeastern Colorado
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Abstract

The eastern fox squirrel (Sciurus niger) has continued to move westward along riparian corridors in the southwestern United States. This species is now established along the Arkansas River and its major tributaries in southeastern Colorado. In addition, a population of S. niger exists in northern New Mexico, and this population might be the result of natural expansion from populations along the Purgatoire River in southeastern Colorado. /// El área de distribución de la ardilla zorra (Sciurus niger) se ha expandido continuamente hacia el oeste en el suroeste de los Estados Unidos a lo largo de corredores riparios. Esta especie ya está establecida a lo largo del río Arkansas y en sus tributarios principales en el sureste de Colorado. Además, una población de S. niger existe en el norte de Nuevo México, y puede ser el resultado de una expansión natural de poblaciones a lo largo del río Purgatoire del sureste de Colorado.

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