Hybrid origin of a unisexual species of whiptail
lizard, Cnemidophorus neomexicanus, in western North America: new evidence and a review.
of the Whiptail
and Horned Lizard respectively, Dennis Strong and Brian Leatherman (transects, surveys and collecting techniques; Strong, Leatherman and Brattstrom, 1993), Tania Marien (ant studies), Mary Hack-Stover (bibliographic material including an annotated bibliography submitted to the California Department of Fish and Game computer data base and printed in hard copy in Brattstrom 1993; appendix 5), Michele Garden (experiments on soil size choice), Paula Fell (behavioral observations), Brian Satterfield (predation experiments with horned lizard models), and Tricia Skellenger = Nira Clark and Mary Shipman (typing and retyping).
floats and has a flat underside and vertical ridgeline.
Principal vegetation Mesquite, cacti, weeds Mesquite, cactus, utilized by whiptails
(pasture), bunchgrasses, bunchgrasses weeds variety of elsewhere weeds 8.
1997) used biogeographic and phylogenetic patterns to understand how species interactions have shaped the evolution of body size in whiptail
lizards (Cnemidophorus) on the mainland and on islands in the Gulf of California.
Therefore, it appears that ants are normally avoided by whiptails
as potential sources of food.
Multiple infections were found in five (10%) of the whiptails
This is most notable in the dark blotching of the gular and temporal regions where it is prominent in the Vizcaino Peninsula whiptails
, less so in lizards from Isla Natividad, and even less so in lizards from Isla de Cedros.
For example, southwestern fence lizards (Sceloporus cowlesi) and New Mexico whiptails
(Aspidoscelis neomexicana) increased in relative abundance after nonnative plants were removed along the middle Rio Grande in New Mexico (Bateman et al.
There was a high degree of overlap in temporal periods of activity between these two whiptails
(D = 0.
Ballinger and McKinney (1968) reported four patternless morphs of 17 individuals in a population of marbled whiptails
in the southern end of the Mescalero-Monahans Shinnery Sands Ecosystem in Crane County, Texas.
In particular, because whiptail
lizards (Aspidoscelus) are difficult to identify due to parthenogenesis and similarities among sympatric species (Stebbins, 2003), some individuals we identified as Sonoran spotted whiptails
Although prevalence of infection and intensities may be low in some whiptails
, as is the case here, these spirurids have been reported numerous times from Cnemidophorus spp.
The ancestry of these triploid unisexual whiptails
indicated by protein electrophoresis (Dessauer and Cole, 1989) is C.
The species was originally described from western whiptails