DISCUSSION--We report the results of various techniques to locate, observe, and identify free-ranging collared lizards
get their name from bands of black around the neck and shoulders.
The result contrasts with the findings of a 2006 paper on threat behaviors among collared lizards
in the southwestern United States.
(Crotaphytus collaris), which live in the central and western U.S.
These hot and dry rocky slopes support scorpions, tarantulas, collared lizards
, pygmy rattlesnakes, roadrunners, and prickly pear cacti.
Effective population size and genetic structure of a population of collared lizards
, Crotaphytus collaris, in central Oklahoma.
Though Joshua Tree may look devoid of wildlife, even a short walk out in the desert will quickly reveal a myriad of freshly dug holes, where pocket mice, collared lizards
, rabbits, or desert tortoises have burrowed.
Remarks--Crotaphytidae contains two genera (Frost and Etheridge, 1989; McGuire, 1996): Crotaphytus (collared lizards
) and Gambelia (leopard lizards).
We tested the procedure of force-feeding radiotransmitters to collared lizards
(N=48) were captured by noosing in June-July 1997 and 1998 at six locations in west-central Texas: a private ranch in Irion County, Texas consisting of rocky limestone outcroppings on a redberry juniper (Juniperus pinchottii) and mesquite (Prosopis glandulosa) dominated hillside; a private ranch in Concho County, Texas consisting of a dry, limestone creekbed surrounded by mesquite brushland; and four sites in Tom Green, Runnels and Coke counties, consisting of rip-rap boulder dams surrounded by mesquite brushland.
occidentalis (Schall et al., 2000), or collared lizards
(Crotaphytus collaris; Curtis and Baird, 2008).