| feeding behavior modulation in the leopard lizard (gambelia wislizenii): effects of noxious versus innocuous prey. | feeding, a fundamentally rhythmic behavior in many animals, is expected to exhibit modulation with respect to prey type. using high-speed videography (200 frames(-1)) and kinematic analysis, we investigated prey-processing behavior in the long-nosed leopard lizard (gambelia wislizenii). the effects of two prey types were examined, innocuous immature crickets (acheta domesticus) and noxious stinging hymenopterans (honeybees [apis mellifer] and yellow jackets [vespula sp.]). stinging hymenopterans ... | 2005 | 16351977 |
| descriptions of the mature spermatozoa of the lizards crotaphytus bicinctores, gambelia wislizenii (crotaphytidae), and anolis carolinensis (polychrotidae) (reptilia, squamata, iguania). | the spermatozoa of crotaphytus bicinctores and gambelia wislizenii (crotaphytidae), and anolis carolinensis (polychrotidae) exhibit the squamate autapomorphies of a single perforatorium extending anteriorly from the apical tip of the paracrystalline subacrosomal cone, the presence of an epinuclear electron-lucent region, and extension of the fibrous sheath into the midpiece. crotaphytid sperm differ from those of polychrotids in several respects, including: the structure of the perforatorium, th ... | 2001 | 11223926 |
| studies of natural populations of crotaphytus wislizenii in rock valley. ucla 12-724. | | 1969 | 5372469 |
| genetic variation across trophic levels: a test of the correlation between population size and genetic diversity in sympatric desert lizards. | understanding the causes of genetic variation in real populations has been elusive. competing theories claim that neutral vs. selective processes have a greater influence on the genetic variation within a population. a key difference among theories is the relationship between population size and genetic diversity. our study tests this empirically by sampling two species of herbivorous lizards (dipsosaurus dorsalis and sauromalus ater) and two species of carnivorous lizards (crotaphytus bicinctor ... | 2019 | 31805058 |