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- Title
PARTHENOGENETIC ASPIDOSCELIS NEOMEXICANA (SAURIA: TEIIDAE) AND SYNTOPIC CONGENERS IN PRESIDIO COUNTY, TEXAS.
- Authors
CORDES, JAMES E.; WALKER, JAMES M.
- Abstract
Studies of distributional ecology of whiptail lizards near the Rio Grande in Presidio County, Texas, have resulted in discovery of Aspidoscelis neomexicana at three of >20 sites investigated. Records of A. neomexicana in Presidio County are >225 km southeast of sites inhabited by the species in El Paso, El Paso County. Observations made during 1988-2008 indicate that A. neomexicana in Presidio County inhabits only a few areas of floodplain where there is intermingling of several microhabitats characterized by loamy, gravelly alluvium with various combinations of trees, shrubs, Russian thistle (Salsola kali), Spanish dagger (Yucca torreyi), cacti, grasses, and forbs. Each species of whiptail lizard (i.e., A. exsanguis, A. tesselata, and A. tigris) that is syntopic with A. neomexicana is widely distributed in Presidio County and elsewhere in the United States and Mexico. Despite range maps to the contrary, A. neomexicana has not been recorded in Mexico; forays in 1993 to San Antonio, Chihuahua, across the Rio Grande (5Río Bravo) from Candelaria, revealed only A. exsanguis and A. tesselata.
- Subjects
PRESIDIO County (Tex.); TEXAS; NEW Mexico whiptail; ASPIDOSCELIS; CNEMIDOPHORUS; TEIIDAE; SEDIMENTS; SUCCULENT plants; FLUVISOLS
- Publication
Southwestern Naturalist, 2009, Vol 54, Issue 2, p226
- ISSN
0038-4909
- Publication type
Article
- DOI
10.1894/GC-76.1