Multiple colour traits signal performance and immune response in the Dickerson's collared lizard Crotaphytus
collaris) display behaviour enhances offspring
Para casi todos los sitios las especies claramente dominantes fueron las lagartijas Crotaphytus
collaris y Aspidoscelis exsanguis, manteniendose posicionadas en el punto mas alto a lo largo del gradiente altitudinal.
Awardees were (in no particular order): Kate Bell, PhD student, Texas State University, "Exploration of the evolutionary landscape of chemical sequestration using a model system," advisor, Chris Nice; Lynne Beaty, PhD student, Oklahoma State University, "The latent effects of early life experience on frog behavior," advisor, Barney Luttbeg; Justin Agan, PhD Student, Oklahoma State University, "Precocial sexual selection in Crotaphytus
collaris: a field experiment," advisor, Stan Fox; Young Zhou, PhD student, Texas A&M, "Woody encroachment of Prosopis glandulosa into the Rio Grande Plains: reconstruction of vegetation dynamics from a landscape-scale 3-dimensional pattern of soil S13C," advisor, Thomas W.
Predation cost of conspicuous male coloration in collared lizards (Crotaphytus
collaris): An experimental test using clay-covered model lizards.
(Eucestoda: Linstowiidae) from Crotaphytus
collaris (Lacertilia: Iguanidae) in northern Arkansas.
Orrel (2001): <<Descriptions of the Mature Spermatozoa of the Lizards Crotaphytus
bicinctores, Gambelia wislizenii (Crotaphytidae), and Anolis carolinensis (Polychrotidae) (Reptilia, Squamata, Iguania)>>, Journal of Morphology, vol.
Abstraet.--The reproductive cycle of the Great Basin Collared lizard, Crotaphytus
bieinctores was studied by a histological examination of museum specimens.
peruvianus (Tropiduridae) con los de Gambelia wislizenii (Crotaphytidae), Crotaphytus
bicinctores (Crotaphytidae) y Anolis carolinensis (Polychrotidae) se observan diferencias estructurales y de tamanos, lo cual nos indica que la morfologia de los espermatozoides podrian usarse como caracteres taxonomicos (Tabla 6).
Collared lizards and Leopard lizards (Crotaphytus
and Gambelia) also from the subdesert rocky or sandy habitats of southwestern North America are unmistakable for their nearly smooth supraocular covering by very minute circumorbital semicircles and sprinkled by some insignificant scales.
Collared Lizards (Crotaphytus
collaris), which live in the central and western U.S.
bicinctores is a sensitive, saxicolous species in southwestern Idaho, and extensive rock removal has occurred in some parts of its range.