Venomous Snake Training & Handling Course
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Proquest Dissertations
Ecology and conservation of the twin- spotted rattlesnake, Crotalus pricei Item Type text; Thesis-Reproduction (electronic) Authors Prival, David Benjamin Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 28/09/2021 01:08:24 Link to Item http://hdl.handle.net/10150/278752 INFORMATiON TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overiaps. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. -
Ephemeral Pleistocene Woodlands Connect the Dots for Highland Rattlesnakes of the Crotalus Intermedius Group
Journal of Biogeography (J. Biogeogr.) (2011) ORIGINAL Ephemeral Pleistocene woodlands ARTICLE connect the dots for highland rattlesnakes of the Crotalus intermedius group Robert W. Bryson Jr1*, Robert W. Murphy2,3, Matthew R. Graham1, Amy Lathrop2 and David Lazcano4 1School of Life Sciences, University of Nevada, ABSTRACT Las Vegas, 4505 Maryland Parkway, Las Aim To test how Pleistocene climatic changes affected diversification of the Vegas, NV 89154-4004, USA, 2Centre for Biodiversity and Conservation Biology, Royal Crotalus intermedius species complex. Ontario Museum, Toronto, ON M5S 2C6, Location Highlands of Mexico and the south-western United States (Arizona). Canada, 3State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Methods We synthesize the matrilineal genealogy based on 2406 base pairs of Zoology, The Chinese Academy of Sciences, mitochondrial DNA sequences, fossil-calibrated molecular dating, reconstruction Kunming 650223, China, 4Laboratorio de of ancestral geographic ranges, and climate-based modelling of species Herpetologı´a, Universidad Auto´noma de distributions to evaluate the history of female dispersion. Nuevo Leo´n, San Nicolas de los Garza, Nuevo Results The presently fragmented distribution of the C. intermedius group is the Leo´n CP 66440, Mexico result of both Neogene vicariance and Pleistocene pine–oak habitat fragmentation. Most lineages appear to have a Quaternary origin. The Sierra Madre del Sur and northern Sierra Madre Oriental are likely to have been colonized during this time. Species distribution models for the Last Glacial Maximum predict expansions of suitable habitat for taxa in the southern Sierra Madre Occidental and northern Sierra Madre Oriental. Main conclusions Lineage diversification in the C. -
Myths Surrounding Snakes
MYTHS SURROUNDING SNAKES MYTH 1: Bites from baby venomous snakes are more dangerous than those from adults because they always deliver a full dose of venom. The legend goes that young snakes have not yet learned how to control the amount of venom they inject. They are therefore more dangerous than adult snakes, which will restrict the amount of venom they use in a bite or “dry bite”. This is simply untrue and all the evidence points towards bites from adults being more severe. Tests have shown that juvenile snakes can control their venom just as much as adults. Furthermore lets consider the following factors: adults have significantly larger fangs to deliver their venom and considerably more venom available than a juvenile. Therefore if a juvenile has venom glands only big enough to hold a 2ml of venom compared to an adult that can hold 30ml or more, then the bite from an adult will always have the potential to be more severe. I presume the reason this myth came into existence was to dissuade people from having a carefree attitude towards the potential dangers of a juvenile snake. The moral of the story is to treat every snake as a potentially dangerous and never expose your self to a situation where a snake of any size can bite you. MYTH 2: If you see a snake they’ll always be more Although it is possible to see more than one snake, for the most part this statement is untrue. Snakes are solitary animals for most of their lives so generally you will only ever encounter individuals. -
FAMILY VIPERIDAE: VENOMOUS “Pit Vipers” Whose Fangs Fold up Against the Roof of Their Mouth, Such As Rattlesnakes, Copperheads, and Cottonmouths
FAMILY VIPERIDAE: VENOMOUS “pit vipers” whose fangs fold up against the roof of their mouth, such as rattlesnakes, copperheads, and cottonmouths COPPERHEAD—Agkistrodon contortrix Uncommon to common. Copperheads are found in wet wooded areas, high areas in swamps, and mountainous habitats, although they may be encountered occasionally in most terrestrial habitats. Adults usually are 2 to 3 ft. long. Their general appearance is light brown or pinkish with darker, saddle-shaped crossbands. The head is solid brown. Their leaf-pattern camouflage permits copperheads to be sit- Juvenile copper- heads and-wait predators, concealed not only from their prey but also from their enemies. Copperheads feed on mice, small birds, lizards, snakes, amphibians, and insects, especially cicadas. Like young cottonmouths, baby copperheads have a bright yellow tail that is used to lure small prey animals. 0123ft. Heat-sensing “pit” characteristic of pit vipers CANEBRAKE OR TIMBER RATTLESNAKE—Crotalus horridus Mountain form Common. This species occupies a wide diversity of terrestrial habitats, but is found most frequently in deciduous forests and high ground in swamps. Heavy-bodied adults are usually 3 to 4, and occasionally 5, ft. long. Their basic color is gray with black crossbands that usually are chevron-shaped. Timber rattlesnakes feed on various rodents, rabbits, and occasionally birds. These rattlesnakes are generally passive if not disturbed or pestered in some way. When a rattlesnake is Coastal plain form encountered, the safest reaction is to back away--it will not try to attack you if you leave it alone. 012345 ft. EASTERN DIAMONDBACK RATTLESNAKE— Crotalus adamanteus Rare. This rattlesnake is found in both wet and dry terrestrial habitats including palmetto stands, pine woods, and swamp margins. -
Snakebite: the World's Biggest Hidden Health Crisis
Snakebite: The world's biggest hidden health crisis Snakebite is a potentially life-threatening neglected tropical disease (NTD) that is responsible for immense suffering among some 5.8 billion people who are at risk of encountering a venomous snake. The human cost of snakebite Snakebite Treatment Timeline Each year, approximately 5.4 million people are bitten by a snake, of whom 2.7 million are injected with venom. The first snake antivenom This leads to 400,000 people being permanently dis- produced, against the Indian Cobra. abled and between 83,000-138,000 deaths annually, Immunotherapy with animal- mostly in sub-Saharan Africa and South Asia. 1895 derived antivenom has continued to be the main treatment for snakebite evenoming for 120 years Snakebite: both a consequence and a cause of tropical poverty The Fav-Afrique antivenom, 2014 produced by Sanofi Pasteur (France) Survivors of untreated envenoming may be left with permanently discontinued amputation, blindness, mental health issues, and other forms of disability that severely affect their productivity. World Health Organization Most victims are agricultural workers and children in 2018 (WHO) lists snakebite envenoming the poorest parts of Africa and Asia. The economic as a neglected tropical disease cost of treating snakebite envenoming is unimaginable in most communities and puts families and communi- ties at risk of economic peril just to pay for treatment. WHO launches a strategy to prevent and control snakebite envenoming, including a program targeting affected communities and their health systems Global antivenom crisis 2019 The world produces less than half of the antivenom it The Scientific Research Partnership needs, and this only covers 57% of the world’s species for Neglected Tropical Snakbites of venomous snake. -
The Venomous Snakes of Texas Health Service Region 6/5S
The Venomous Snakes of Texas Health Service Region 6/5S: A Reference to Snake Identification, Field Safety, Basic Safe Capture and Handling Methods and First Aid Measures for Reptile Envenomation Edward J. Wozniak DVM, PhD, William M. Niederhofer ACO & John Wisser MS. Texas A&M University Health Science Center, Institute for Biosciences and Technology, Program for Animal Resources, 2121 W Holcombe Blvd, Houston, TX 77030 (Wozniak) City Of Pearland Animal Control, 2002 Old Alvin Rd. Pearland, Texas 77581 (Niederhofer) 464 County Road 949 E Alvin, Texas 77511 (Wisser) Corresponding Author: Edward J. Wozniak DVM, PhD, Texas A&M University Health Science Center, Institute for Biosciences and Technology, Program for Animal Resources, 2121 W Holcombe Blvd, Houston, TX 77030 [email protected] ABSTRACT: Each year numerous emergency response personnel including animal control officers, police officers, wildlife rehabilitators, public health officers and others either respond to calls involving venomous snakes or are forced to venture into the haunts of these animals in the scope of their regular duties. North America is home to two distinct families of native venomous snakes: Viperidae (rattlesnakes, copperheads and cottonmouths) and Elapidae (coral snakes) and southeastern Texas has indigenous species representing both groups. While some of these snakes are easily identified, some are not and many rank amongst the most feared and misunderstood animals on earth. This article specifically addresses all of the native species of venomous snakes that inhabit Health Service Region 6/5s and is intended to serve as a reference to snake identification, field safety, basic safe capture and handling methods and the currently recommended first aide measures for reptile envenomation. -
Is the Sonoran Coral Snake Dangerous? How Do I Avoid Being Bitten by A
SNAKES How can I tell if a snake is venomous? Is the Sonoran coral snake dangerous? How do I avoid being bitten by a snake? Is a snake still dangerous after it is dead? What happens when a person is bitten by a venomous snake? Is it possible to remove the venom after I’ve been bitten by a snake? What should I do if I am bitten by a snake? What shouldn’t I do if I am bitten by a snake? Is it important to know which type of venomous snake bit me to get appropriate treatment? What treatment am I likely to receive if I am bitten by a venomous snake? What medications should I avoid while being treated for a snakebite? Is it possible to become immune to snake venom? How can I tell if a snake is venomous? Most venomous snakes in the United States belong to the family of snakes sometimes referred to as pit vipers. These snakes, which belong to the Family Crotalinae, include rattlesnakes, copperheads, and cottonmouths (water moccasins). All pit vipers in Arizona are rattlesnakes. These snakes are most easily identified by the presence of a rattle on their tail and a triangular shaped head. However, some young snakes may not have developed a rattle yet but still possess venom. When in doubt, avoid contact! Aside from pit vipers, all other venomous snakes native to the U.S. are coral snakes, which belong to the Elapid family of snakes. Coral snakes found in the Eastern U.S. can be very dangerous to humans, but the Sonoran coral snake, found in Arizona, is not. -
Very Venomous, But...- Snakes of the Wet Tropics
No.80 January 2004 Notes from Very venomous but ... the Australia is home to some of the most venomous snakes in the world. Why? Editor It is possible that strong venom may little chance to fight back. There are six main snake families have evolved chiefly as a self-defence in Australia – elapids (venomous strategy. It is interesting to look at the While coastal and inland taipans eat snakes, the largest group), habits of different venomous snakes. only mammals, other venomous colubrids (‘harmless’ snakes) Some, such as the coastal taipan snakes feed largely on reptiles and pythons, blindsnakes, filesnakes (Oxyuranus scutellatus), bite their frogs. Venom acts slowly on these and seasnakes. prey quickly, delivering a large amount ‘cold-blooded’ creatures with slow of venom, and then let go. The strong metabolic rates, so perhaps it needs to Australia is the only continent venom means that the prey doesn’t be especially strong. In addition, as where venomous snakes (70 get far before succumbing so the many prey species develop a degree of percent) outnumber non- snake is able to follow at a safe immunity to snake venom, a form of venomous ones. Despite this, as distance. Taipans eat only mammals – evolutionary arms race may have been the graph on page one illustrates, which are able to bite back, viciously. taking place. very few deaths result from snake This strategy therefore allows the bites. It is estimated that between snake to avoid injury. … not necessarily deadly 50 000 and 60 000 people die of On the other hand, the most Some Australian snakes may be snake bite each year around the particularly venomous, but they are world. -
Testing the Toxicofera: Comparative Reptile Transcriptomics Casts Doubt on the Single, Early Evolution of the Reptile Venom Syst
bioRxiv preprint doi: https://doi.org/10.1101/006031; this version posted June 6, 2014. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Title page 2 3 Title: 4 Testing the Toxicofera: comparative reptile transcriptomics casts doubt on the single, early 5 evolution of the reptile venom system 6 7 Authors: 8 Adam D Hargreaves1, Martin T Swain2, Darren W Logan3 and John F Mulley1* 9 10 Affiliations: 11 1. School of Biological Sciences, Bangor University, Brambell Building, Deiniol Road, 12 Bangor, Gwynedd, LL57 2UW, United Kingdom 13 14 2. Institute of Biological, Environmental & Rural Sciences, Aberystwyth University, 15 Penglais, Aberystwyth, Ceredigion, SY23 3DA, United Kingdom 16 17 3. Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1HH, United Kingdom 18 19 *To whom correspondence should be addressed: [email protected] 20 21 22 Author email addresses: 23 John Mulley - [email protected] 24 Adam Hargreaves - [email protected] 25 Darren Logan - [email protected] 26 Martin Swain - [email protected] 1 bioRxiv preprint doi: https://doi.org/10.1101/006031; this version posted June 6, 2014. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. -
Crotalus Price/, the 1Win-Spotted Rattlesnake
98 I Litteratura Serpentium, 1994, Vol. 14, Nr. 4 CROTALUS PRICE/, THE 1WIN-SPOTTED RATTLESNAKE By: Pete Strimple, 5310 Sultana Drive, Cincinnati, Ohio 45238, U.S.A. Contents: Historical - Habitat - Food - Habits - Breeding - The sub_species of Crotalus pricei. *** HISTORICAL The twin-spotted rattlesnake of southeastern Arizona and northwestern Mexico was first described by Van Denburgh in 1895 as Crotalus pricei. This description was based on a specimen collected in the Huachuca mountains, Cochise County, Arizona, and was collected by W.W. Price for whom the species was named. In 1927, Alfranio Do Amaral placed this rattlesnake in synonomy with Crotalus triseriatus because he believed that the only real distinction between the two species was geographical. Later, in 1931, Klauber divided the triseriatus species into subspecies, one of which was Crotalus triseriatus pricei. In 1940, Howard Gloyd descnbed another subspecies of triseriatus as Crotalus triseriatus miquihuanus. It was not until 1946 that Hobart Smith resurrected the species pricei, and Crotalus triseriatus pricei and Crotalus triseriatus miquihuanus became Crotalus pricei pricei and Crotalus pricei miquihuanus respectively. HABITAT Crotalus pricei is a montane (mountain dwelling) form of rattlesnake that can be found at elevations from 1900-2800 m or even higher. There are a couple of elevation records under 1900 m but none below 1800 m. Twin-spotted rattlesnakes can be found in oak-pine woodlands (upper part of the Upper Sonoran Life-Zone), ponderosa pine forests (Transition Life-Zone), and fir forests (Canadian Life-Zone). Within these areas Crotalus pricei is typically found in or around talus rock slides, south facing rocky slopes, loose rock piles, rocky canyons and grassy or shrub covered slopes with rocky outcroppings. -
Amphibians and Reptiles of the State of Coahuila, Mexico, with Comparison with Adjoining States
A peer-reviewed open-access journal ZooKeys 593: 117–137Amphibians (2016) and reptiles of the state of Coahuila, Mexico, with comparison... 117 doi: 10.3897/zookeys.593.8484 CHECKLIST http://zookeys.pensoft.net Launched to accelerate biodiversity research Amphibians and reptiles of the state of Coahuila, Mexico, with comparison with adjoining states Julio A. Lemos-Espinal1, Geoffrey R. Smith2 1 Laboratorio de Ecología-UBIPRO, FES Iztacala UNAM. Avenida los Barrios 1, Los Reyes Iztacala, Tlalnepantla, edo. de México, Mexico – 54090 2 Department of Biology, Denison University, Granville, OH, USA 43023 Corresponding author: Julio A. Lemos-Espinal ([email protected]) Academic editor: A. Herrel | Received 15 March 2016 | Accepted 25 April 2016 | Published 26 May 2016 http://zoobank.org/F70B9F37-0742-486F-9B87-F9E64F993E1E Citation: Lemos-Espinal JA, Smith GR (2016) Amphibians and reptiles of the state of Coahuila, Mexico, with comparison with adjoining statese. ZooKeys 593: 117–137. doi: 10.3897/zookeys.593.8484 Abstract We compiled a checklist of the amphibians and reptiles of the state of Coahuila, Mexico. The list com- prises 133 species (24 amphibians, 109 reptiles), representing 27 families (9 amphibians, 18 reptiles) and 65 genera (16 amphibians, 49 reptiles). Coahuila has a high richness of lizards in the genus Sceloporus. Coahuila has relatively few state endemics, but has several regional endemics. Overlap in the herpetofauna of Coahuila and bordering states is fairly extensive. Of the 132 species of native amphibians and reptiles, eight are listed as Vulnerable, six as Near Threatened, and six as Endangered in the IUCN Red List. In the SEMARNAT listing, 19 species are Subject to Special Protection, 26 are Threatened, and three are in Danger of Extinction. -
Colubrid Venom Composition: an -Omics Perspective
toxins Review Colubrid Venom Composition: An -Omics Perspective Inácio L. M. Junqueira-de-Azevedo 1,*, Pollyanna F. Campos 1, Ana T. C. Ching 2 and Stephen P. Mackessy 3 1 Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Instituto Butantan, São Paulo 05503-900, Brazil; [email protected] 2 Laboratório de Imunoquímica, Instituto Butantan, São Paulo 05503-900, Brazil; [email protected] 3 School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639-0017, USA; [email protected] * Correspondence: [email protected]; Tel.: +55-11-2627-9731 Academic Editor: Bryan Fry Received: 7 June 2016; Accepted: 8 July 2016; Published: 23 July 2016 Abstract: Snake venoms have been subjected to increasingly sensitive analyses for well over 100 years, but most research has been restricted to front-fanged snakes, which actually represent a relatively small proportion of extant species of advanced snakes. Because rear-fanged snakes are a diverse and distinct radiation of the advanced snakes, understanding venom composition among “colubrids” is critical to understanding the evolution of venom among snakes. Here we review the state of knowledge concerning rear-fanged snake venom composition, emphasizing those toxins for which protein or transcript sequences are available. We have also added new transcriptome-based data on venoms of three species of rear-fanged snakes. Based on this compilation, it is apparent that several components, including cysteine-rich secretory proteins (CRiSPs), C-type lectins (CTLs), CTLs-like proteins and snake venom metalloproteinases (SVMPs), are broadly distributed among “colubrid” venoms, while others, notably three-finger toxins (3FTxs), appear nearly restricted to the Colubridae (sensu stricto).