| Thesis Title | Ontogenetic color change and antipredator adaptations in the Colubrinae (Colubridae, Serpentes) |
| Current Projects | Colubrine systematics; Antipredator behaviors of adult and juvenile racers (Coluber constrictor); Colubrine morphometrics |
| Undergrad. Institution | Brigham Young University |
| Hobbies | Fishing, fly tying, and rod building; Care and captive breeding of gopher snakes and common kingsnakes; Practical and applied population control in Odocoileus virgineanus. |
Research Interests
Systematics and evolutionary ecology of squamate reptiles
Current Research
Molecular sytematics of the Colubrinae (Serpentes)
inferred from mtDNA sequences
Ontogenetic change in defensive behavior and
sprint performance in the racer (Coluber constrictor)
Variation in body shape among racer-ecomorph
colubrines
Previous Research Projects
Systematics of the Sceloporus scalaris species group and evolution
of viviparity
Phenotypic plasticity in hindlimb length of brown anoles (Anolis
sagrei)
Movements and activity patterns in wild racers (Coluber constrictor)
using radiotelemetry
Systematics of the Anolis roquet series of the southern Lesser
Antilles
Systematics of the North American racers and whipsnakes (Coluber
constrictor and Masticophis)
Publications
Creer, D.A., K. deQueiroz, T.R. Jackman, J.B. Losos, and A. Larson.
In press. Systematics of the Anolis roquet group of the southern
Lesser
Antilles. J. Herpetol.
Losos, J.B., D.A. Creer, D. Glossip, R. Goellner, A. Hampton, G. Roberts,
N. Haskell, P. Taylor, and J. Ettling. 2000. Beneficial
phenotypic plasticity in the hindlimb of the lizard Anolis sagrei.
Evolution 54:301-305.
Adult racer at the Tyson Research Center, St. Louis Co., Missouri
Hatchling racer, Tyson Research Center (captive-hatched)