| heterotopic synaptic bodies in the auditory hair cells of adult lizards. | the auditory hair cells of adults of eight species of lizards (three gekkonids: coleonyx variegatus, gekko gecko, and cosymbotus platyurus; two teiids: ameiva ameiva and cnemidophorus tigris; one anguid: celestus costatus; one lacertid: podarcis (lacerta) sicula; and one iguanid: crotaphytus wislizeni) were studied by transmission electron microscopy. heterotopic synaptic bodies were found in some of the auditory hair cells of all of the above species, occurring frequently in the gekkonids but i ... | 2010 | 2820267 |
| sexual selection versus alternative causes of sexual dimorphism in teiid lizards. | the presence and extent of sexual dimorphisms in body form (size and shape) of adult macroteiid lizards were investigated. males were significantly larger than females in the temperate species, cnemidophorus tigris, and in the tropical species, ameiva ameiva and c. ocellifer. young adult c. tigris males grew faster than young adult females within and between reproductive seasons. adult males of all species had larger heads than adult females of the same body size; this difference increased with ... | 1990 | 28312746 |
| character displacement in some cnemidophorus lizards revisited: a phylogenetic analysis. | ecological studies have demonstrated the role of competition in structuring communities; however, the importance of competition as a vehicle for evolution by natural selection and speciation remains unresolved. study systems of insular faunas have provided several well known cases where ecological character displacement, coevolution of competitors leading to increased morphological separation, is thought to have occurred (e.g., anoline lizards and geospizine finches). whiptail lizards (genus cne ... | 1997 | 9275194 |
| analysis of histoincompatibility in a natural population of the bisexual whiptail lizard cnemidophorus tigris. | histoincompatibility was analyzed to describe as precisely as possible the sequence of gross morphological events taking place during allograft rejection among closely related conspecifics from a natural population of the bisexual lizard cnemidophorus tigris. two types of rejection were noted, depending on whether the grafts were sloughed or not. abrupt rejection was typically characterized by hemorrhaging of the graft site, scale dissolution, and eventual sloughing of the graft. this process oc ... | 1977 | 331570 |
| fatty acid distribution of lipids from carcass, liver and fat bodies of the lizard, cnemidophorus tigris, prior to hibernation. | | 1972 | 5029491 |
| a histochemical study of the circumtesticular leydig cells of a teiid lizard, cnemidophorus tigris. | | 1970 | 5483119 |
| the reproductive cycle of the western whiptail lizard (cnemidophorus tigris) in southern arizona. | | 1966 | 5956247 |
| hierarchical distance sampling to estimate population sizes of common lizards across a desert ecoregion. | multispecies wildlife monitoring across large geographical regions is important for effective conservation planning in response to expected impacts from climate change and land use. unlike many species of birds, mammals, and amphibians which can be efficiently sampled using automated sensors including cameras and sound recorders, reptiles are often much more challenging to detect, in part because of their typically cryptic behavior and generally small body sizes. although many lizard species are ... | 2019 | 30962880 |
| contrasts in energy intake and expenditure in sit-and-wait and widely foraging lizards. | daily energy metabolism and water flux were measured with doubly labeled water in the free-living insectivorous lizards cnemidophorus tigris (mean body mass 15.7 g) and callisaurus draconoides (8.6 g) in june 1979 in the colorado desert of california. c. tigris was an active forager; it spent 91% of its 5-h daily activity period in movement. c. draconoides was a sit-and-wait predator; it spent less than 2% of its 10-h activity period in movement. c. tigris had significantly higher rates of field ... | 1981 | 28309450 |
| genetic variation in irradiated and control populations of cnemidophorus tigris (sauria, teiidae) from mercury, nevada with a discussion of genetic variability in lizards. | whiptail lizards (cnemidophoms tigris) were collected from fenced irradiated, fenced control, and unfenced areas near mercury nevada. no changes in allele frequencies at 26 allozyme loci could be ascribed to irradiation or fencing. this species is the most polymorphic and heterozygous lizard so far examined. - heterozygosity estimates derived from electrophoretic studies on 20 additional species of lizards are compared with cnemidophorus. a general trend seems to emerge. fossorial lizards have u ... | 1977 | 24408507 |