|Locations of the remaining rattlesnake roundups,|
including non-lethal festivals.
From TPWD Report Reference Document (p. 22)
|Trajectory of profit (red, blue), number of snakes (purple), and|
weather conditions (green) at the Sweetwater Roundup over the last decade.
Chart prepared by Rob Denkhaus, TPWD Wildlife Diversity Advisory Committee
and presented in TPWD Report Reference Document (p. 64)
|Percentage of time radio-tracked Burmese Pythons spent|
fully concealed (black), partly visible (gray), and mostly visible (white).
In nineteen 30-minute searches of a 30 x 25 m enclosure containing
ten pythons, only two pythons were detected out of
190 possible detection opportunities.
From Dorcas & Willson 2013
Thanks to Ray Autry and Dale Burton from the Rise Against Rattlesnake Roundups Facebook group for pointing me to some resources about the 2016 Sweetwater Roundup.
Adams, C.E. and J.K. Thomas. 2008. Texas Rattlesnake Roundups. Texas A&M University Press, College Station, Texas <link>
Arena, P. C., C. Warwick, and D. Duvall. 1995. Rattlesnake Round-ups. Pages 313-324 in R. L. Knight and K. Gutzwiller, editors. Wildlife and Recreationists. Island Press, Washington, DC <link>
Campbell, J. A., D. R. Formanowicz Jr, and E. D. Brodie Jr. 1989. Potential impact of rattlesnake roundups on natural populations. Texas Journal of Science 41:301-317.
Dorcas, M. E., and J. D. Willson. 2013. Hidden giants: problems associated with studying secretive invasive pythons. Pages 367-385 in W. I. Lutterschmidt, editor. Reptiles in Research. Nova Biomedical, New York, New York <link>
Elliott, W. R. 2000. Conservation of the North American cave and karst biota. Pages 665-689 in H. Wilkens, D. Culver, and W. Humphreys, editors. Subterranean Ecosystems. Elsevier, Amsterdam.
Jackley, A. M. 1939. Rattlesnake Control and Conservation. South Dakota Conservation Digest 6:11.
Margres, M. J., J. J. McGivern, M. Seavy, K. P. Wray, J. Facente, and D. R. Rokyta. 2015. Contrasting modes and tempos of venom expression evolution in two snake species. Genetics 199:165-176 <link>
Reinert, H., and R. Rupert. 1999. Impacts of translocation on behavior and survival of Timber Rattlesnakes, Crotalus horridus. Journal of Herpetology 33:45-61 <link>
Texas Parks and Wildlife Department. 2016. Snake Harvest Working Group Final Report <link> <references> <summary>