Research Interests: Herpetology
Herpetology Links:
American Society of Ichthyologists and Herpetologists
Herpetologists League
Herpetological Association of Africa
Society for the Study of Amphibians and Reptiles
Sociedad Herpetologica Mexicana
Amphibia Web
Sociedade Brasileira de Herpetologia
Center for North American Amphibians and Reptiles
The NEW Reptile Database
( Xenopholis werdingorum from Beni Bolivia)
( Erythrolamprus dorsocorallinus from Beni Bolivia)
Publications:
(Journal Articles, Natural History Notes, Book Chapters)
32) Eversole, C. B, R. L. Powell, D. Lizarro, and R. Cholima Bravo. 2016. Erythrolamprus ( Liophis) dorsocorallinus, Esqueda, Natera, La Marca and Ilija-Fistar, 2007 (Squamata:Dipsadidae): range extension, new country record, and comments on color pattern. In Press Checklist Journal.
31) Powell, R. L., C. B. Eversole, A. V. Crocker, D. Lizarro, and R. Cholima Bravo. 2016. Xenopholis werdingorum, Jansen, Álvarez and Köhler, 2009 (Squamata: Dipsadidae): Range extension, with comments on distribution. In Press Checklist Journal.
30) Eversole, C. B, R. L. Powell, D. Lizarro, and R. Cholima Bravo. 2016. Natural history notes: THAMNODYNASTES LANEI. DIET. Thamnodynastes lanei (Dipsadidae; Bailey,Thomas, and Da Silva 2005). Herpetological Review 47:155.
29) Eversole, C.B., S.E. Henke, D.B. Wester, B.M. Ballard, and R.L. Powell. 2015. Time of night as a technique for conducting American alligator ( Alligator mississippiensis) surveys. Herpetology Review. 46:520-523.
28) Powell, R.L., B.C. Newman, W.D. Lukefahr, and R.G. Thomas. 2015. Morphometric analysis of carapacial bones: discriminating between two genera of South Texas (North America) Pleistocene tortoises (Testudinidae). Historical Biology, DOI: 10.1080/08912963.2015.1088535
27) Powell, R.L., A. V. Crocker, S. L. Kumro, R. W. Rabe, and E. O. Montalvo. 2015. Siren
intermedia (Lesser Siren). Mass Aestivation and Artificial Hibernacula. Herpetological Review . 46 (2): 227-228.
26) Eversole, C. B., S. E. Henke, D. B. Wester, B. M. Ballard, and R. L. Powell. 2015.
Responses of American Alligators ( Alligator mississippiensis) to Environmental Conditions: Implications for Population and Ecosystem Monitoring. Herpetologica, 71(1):37–45.
25) Eversole, C.B., R. L. Powell, J. P. Leonard, D. Lizarro, and R. Cholima Bravo. 2014. First
Observation of Mating of the Calico Snake ( Oxyrhopus petolarius) in the wild. Herpetology Notes, Vol. 7:767-769.
24) Eversole, C. B., S. E. Henke, B. M. Ballard, and R. L. Powell. 2014. Duration of Marking
Tags on American Alligators ( Alligator mississippiensis). Herpetological Review 45:223-226.
23) Eversole, C. B., S. E. Henke, R. L. Powell, and L. W. Janik. 2013. Effect of Drought on
Clutch Size and Hatchling Production of American Alligators ( Alligator mississippiensis) in Texas. Herpetological Conservation and Biology 8(3):756-763.
22) Eversole, C. B., S. E. Henke, R. L. Powell, L. W. Janik, and J. Janik. 2013. Natural history
notes: Alligator mississippiensis (American Alligator), Maximum Clutch Size. Herpetological Review 44:659.
21) Kumro, S. L., Crocker, A. V. and R. L. Powell. 2013. Injection Plastination: A Low-Tech,
Inexpensive Method for Silicone Preservation of Small Vertebrates. Journal of Plastination 25(1):12-17.
20) Rabe, R. W., R. L. Powell, C. L. Claunch, and E. O. Montalvo. 2012. Geographic
distribution: Anolis sagrei (Brown Anole). Herpetological Review 43:304.
19) Powell, R. L., W. D. Lukefahr, L. T. Palreiro, J. A. Quintanilla, and G. M. Villescas. 2011.
Natural history notes: Drymarchon melanurus erebennus, (Texas Indigo Snake), Diet. Herpetological Review 42:289.
18) Powell, R. L., W. D. Lukefahr, W. L. Moore, and R. W. Rabe. 2010. Geographic
distribution: Sceloporus cyanogenys (Blue Spiny Lizard). Herpetological Review 41:108.
17) Powell, R. L., 2010. Venom Biology of the Lower Vertebrates: Past, Present, and Future
Research on Venom and Toxins from Fishes, Amphibians, and Reptiles. Pp. 97-112. In: J. Gjersoe and S. Hundstad (eds.),Venoms: Sources, Toxicity and Therapeutic Uses. Nova Science Publishers, Hauppauge, New York.
16) Powell, R. L., M. A. Soto, R. H. Gonzalez, Jr., and J. R. Purviance. 2008. Secretory Vesicle
Refilling and Toxin Production in Ollotis nebulifer (Coastal Plain Toad) and Anaxyrus speciosus (Texas Toad) following Transcutaneous Electrical Stimulation of the Parotoid Glands. Texas Journal of Science. 60(3):171-178.
15) Powell, R. L. and C. S. Lieb. 2008. Perspective on Venom Evolution in Crotalus. Pp. 551-
556. In: W. K. Hayes, K. R. Beaman, M. D. Cardwell, and S. P. Bush (eds.), The Biology of the Rattlesnakes. Loma Linda University Press, Loma Linda, California.
14) Powell, R. L., C. S. Lieb, and E. D. Rael. 2008. Geographic Distribution of Mojave Toxin
and Mojave Toxin Subunits Among Selected Crotalus Species. Pp. 537-550. In: W. K. Hayes, K. R. Beaman, M. D. Cardwell, and S. P. Bush (eds.), The Biology of the Rattlesnakes. Loma Linda University Press, Loma Linda, California.
13) Powell, R. L., M. A. Soto, M. L. Leidner, and W. R. Austin. 2007. Natural history notes:
Masticophis schotti schotti (Schott's Whipsnake). Maximum size record. Herpetological Review 38:208-209.
12) Powell, R. L. 2007. Geographic distribution: Sceloporus cyanogenys (Blue Spiny Lizard).
Herpetological Review 38:102.
11) Powell, R. L., S. R. Reyes, and D. L. Lannutti. 2006. Molecular barcoding, DNA from
snake venom, and toxinological research: considerations and concerns. Toxicon 48:1095-1097.
10) Soto, J. G., R. L. Powell, S. R. Reyes, L. Wolana, L. J. Swanson, E. E. Sanchez, and J. C.
Perez. 2006. Genetic variation of a disintegrin gene found in the American copperhead snake ( Agkistrodon C ontortrix). Gene 373:1-7.
9) Powell, R. L., E. E. Sánchez, and J. C. Pérez. 2006. Farming for venom: Survey of snake
venom extraction facilities worldwide. Applied Herpetology 3:1-10.
8) Powell, R. L. and L. E. Arispe. 2006. Report on an albino Texas Brown snake ( Storeria
dekayi texana) from southern Texas. Bulletin of the Maryland Herpetological Society 42:149-150.
7) Powell, R. L. and L. E. Arispe. 2006. Geographic distribution: Terrapene carolina triunguis
(Three-toed Box Turtle). Herpetological Review 37:239.
6) Sánchez, E. E., J. A. Galán, R. L. Powell, S. R. Reyes, J. G. Soto, W. K. Russell, D. H.
Russell, and J. C. Pérez. 2005. Disintegrin, hemorrhagic, and proteolytic activities of Mohave rattlesnake, Crotalus scutulatus scutulatus venoms lacking Mojave toxin. Comparative Biochemistry and Physiology C: Toxicology & Pharmacology 141:124-132.
5) Powell, R. L. 2005. Snakes. In: P. Wexler (ed.), Encyclopedia of Toxicology. 2 nd ed.,
Elsevier, Oxford. Vol. 4. pp. 57-59.
4) Powell, R. L., C. S. Lieb, and E. D. Rael. 2004. Identification of a neurotoxic venom
component in the tiger rattlesnake, Crotalus tigris. Journal of Herpetology 38:149-152.
3) Powell, R. L., M. McMillan, J. D. Jurado, and D. I. Lannutti. 2004. Natural history notes:
Crotalus molossus (Blacktail Rattlesnake). Fatal ingestion. Herpetological Review 35:40
2) Powell, R. L. 2003. A secure and economical system for caging venomous snakes. Journal
of Venomous Animals and Toxins including Tropical Diseases 9:111-116.
1) Powell, R. L. and C. S. Lieb. 2003. Natural history notes: Hyla arenicolor (Canyon Tree
frog). Toxic skin secretions. Herpetological Review 34:230.
Contact Information
Department of Biological and Health Sciences
MSC 158 Texas A&M University-Kingsville
Kingsville, Texas 78363-8202
voice: (361) 593-2346
fax:
email: Randy.Powell@tamuk.edu
Personal Website:
