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STATUS OF RED SQUIRRELS IN GUADALUPE MOUNTAINS NATIONAL PARK, TEXAS

Melissa J. Merrick, John L. Koprowski, R. Nathan Gwinn, Geoffrey H. Palmer and Claire A. Zugmeyer
The Southwestern Naturalist
Vol. 56, No. 1 (MARCH 2011), pp. 24-28
Stable URL: http://www.jstor.org/stable/23028107
Page Count: 5
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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.
STATUS OF RED SQUIRRELS IN GUADALUPE MOUNTAINS NATIONAL PARK, TEXAS
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Abstract

The Pinaleño Mountains of southeastern Arizona contain the southernmost population of red squirrels (Tamiasciurus hudsonicus) in North America. Red squirrels historically inhabited the Guadalupe Mountains in Trans-Pecos Texas during the Pleistocene and the possibility that red squirrels currently persist has been suggested by several biologists visiting the upper-elevation forests. Herein, we report results of an assessment of small mammals in coniferous forest where we used observational line transects, playback calls, and live trapping to determine status of red squirrels. We surveyed 132 ha of coniferous forest along 8.9 km of transects and observed and found evidence of 10 species of mammals. We detected no evidence of red squirrels inhabiting high-elevation coniferous forest. Las montañas Pinaleño en el sudeste de Arizona contienen la población más sureña de la ardilla roja (Tamiasciurus hudsonicus) en Norteamérica. Históricamente las ardillas rojas habitaban las montañas Guadalupe en el Trans-Pecos de Texas durante el Pleistoceno y la posibilidad de que las ardillas rojas todavía estén ha sido sugerida por varios biólogos que han visitado los bosques de la parte alta. Aquí reportamos los resultados de un muestreo de mamíferos pequeños del bosque conífero donde utilizamos observaciones en transectos de línea, emisiones de grabaciones de vocalizaciones, y trampeo vivo para determinar el estatus de las ardillas rojas. Muestreamos 132 ha de bosque conífero a través de 8.9 km de transectos y observamos y encontramos evidencia de 10 especies de mamíferos. No encontramos ninguna evidencia de que las ardillas rojas habiten el bosque conífero de las alturas superiores.

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