Aspidoscelis, AT

MANNING, GLENN J., COLE, CHARLES J., DESSAUER, HERBERT C. & WALKER, JAMES M., 2005, Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context, American Museum Novitates 3492 (1), pp. 1-56 : 14-15

ASPIDOSCELIS AT SITE CL­5*

(EAST OF CONCHAS LAKE LEVEE)

The first New Mexico whiptail (UADZ 3235 5 AMNH 148599) and hybrid male A.

TABLE 3 Aspidoscelis Lizards Observed and Collected at Conchas Lake in an Area of No Contact Between Parthenogens and A. sexlineata viridis , CL­4 (North of Canadian River), North Side of Conchas Dam Below Picnic Area Overlooking Canadian River, 1220–1243 m, San Miguel County, New Mexico, by JMW and Associates (1988–1990, 1997) and GJM, JMW, and J.T. Briggler (2000–2001)

neomexicana 3 A. sexlineata viridis (UADZ 3272 5 AMNH 144085) from CL­5* were discovered at the Valley­plateau­hill component (CL­5VPH*) by JMW and J.E. Cordes in July 1988 ( Walker et al., 1990). A thorough search of this component a month later in August 1988 ( Walker et al., 1992) revealed no additional hybrids or individuals of A. neomexicana . The 1988 studies at CL­ 5VPH* at East of Conchas Lake Levee resulted in observation of a greater than 60:1 ratio of each of A. sexlineata viridis and A. tesselata to A. neomexicana . These results led Walker et al. (1990, 1992) to state that previous collectors working at CL­5* easily could have overlooked A. neomexicana based on its scarcity at the site in 1988.

Ecological characteristics of the three levels comprising the CL­5VPH* component at the south end of East of Conchas Lake Levee ( fig. 4) remain essentially as described by Walker et al. (1990, 1992). At CL­5VPH* (tables 1, 4; appendix 4; fig. 4), away from the base of the plateau, the relative abundance of A. neomexicana , A. tesselata C and D, and A. sexlineata viridis are presently similar to levels observed in 1988 ( Walker et al., 1992). However, recent observations by GJM indicate that both A. neomexicana and A. sexlineata viridis are now more numerous in the immediate vicinity of the middle­level manmade plateau than recorded in 1988. In five visits to CL­5VPH* in 2000–2002, GJM collected five A. neomexicana , four A. sexlineata viridis , 17 A. tesselata C, two A. tesselata D, and no hybrids.

We refer to the topographically less complex Valley component (across the levee from the Central Campground of Conchas Lake State Park) designated East of Conchas Lake Levee as CL­5V (table 1; fig. 4; appendix 4). This is a relatively stable sandy mesquite­grassland with very few A. neomexicana and with large numbers of A. sexlineata viridis . In five visits to CL­5V in 2000–2002, GJM collected two A. neomexicana , 17 A. sexlineata viridis , five A. tesselata C, two A. tesselata D, and no hybrids.