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Xenosaurus Tzacualtipantecus. the Zacualtipán Knob-Scaled Lizard Is Endemic to the Sierra Madre Oriental of Eastern Mexico
Xenosaurus tzacualtipantecus. The Zacualtipán knob-scaled lizard is endemic to the Sierra Madre Oriental of eastern Mexico. This medium-large lizard (female holotype measures 188 mm in total length) is known only from the vicinity of the type locality in eastern Hidalgo, at an elevation of 1,900 m in pine-oak forest, and a nearby locality at 2,000 m in northern Veracruz (Woolrich- Piña and Smith 2012). Xenosaurus tzacualtipantecus is thought to belong to the northern clade of the genus, which also contains X. newmanorum and X. platyceps (Bhullar 2011). As with its congeners, X. tzacualtipantecus is an inhabitant of crevices in limestone rocks. This species consumes beetles and lepidopteran larvae and gives birth to living young. The habitat of this lizard in the vicinity of the type locality is being deforested, and people in nearby towns have created an open garbage dump in this area. We determined its EVS as 17, in the middle of the high vulnerability category (see text for explanation), and its status by the IUCN and SEMAR- NAT presently are undetermined. This newly described endemic species is one of nine known species in the monogeneric family Xenosauridae, which is endemic to northern Mesoamerica (Mexico from Tamaulipas to Chiapas and into the montane portions of Alta Verapaz, Guatemala). All but one of these nine species is endemic to Mexico. Photo by Christian Berriozabal-Islas. amphibian-reptile-conservation.org 01 June 2013 | Volume 7 | Number 1 | e61 Copyright: © 2013 Wilson et al. This is an open-access article distributed under the terms of the Creative Com- mons Attribution–NonCommercial–NoDerivs 3.0 Unported License, which permits unrestricted use for non-com- Amphibian & Reptile Conservation 7(1): 1–47. -
SQUAMATA: Vlperldae Crotalus Ruber
840.1 REPTILIA: SQUAMATA: VlPERlDAE Crotalus ruber Catalogue of American Amphibians and Reptiles. Beaman, K.R. and E.A. Dugan. 2006. Crotalus ruber. Crotalus ruber Cope Red Diamond Rattlesnake Crotalus adamanteus atrox: Cope 1875:33 (part). Crotalus exsul: Garman 1884 [dated 1883]:114. Crotalus adamanteus ruber Cope 1892:690. Type- locality not given, restricted to "Dulzura, San Diego County, California," by Smith and Taylor (1950). Holotype, National Museum of Natural History (USNM) 9209, adult male, collector and date of collection not given (not examined by authors). Crotalus atrox ruber: Stejneger 1895:439. Crotalus rube^ Van Denburgh 1896: 1007. Figure 1. Crotalus ruberfrom Chino Hills State Park, Crotalus lucasensis Van Denburgh 1920:29. Type- San Bernardino County, California, USA (above); locality, "Agua Caliente, Cape Region of Lower Crotalus ruberfrom the Jacumba Mountains, Imperial [Baja] California, Mexico." Holotype, California County, California, USA (below). Photographs by Academy of Sciences (CAS) 45888, adult male, E.A. Dugan. collected by J.R. Slevin on 26 July 1919. Crotalus atrox lucasensis Schmidt 1922:698. Crotalus atrox elegans Schmidt 1922:699. Type- locality, "Angel de la Guardia Island, Gulf of Cali- fornia" [Mexico]. Holotype, National Museum of Natural History (USNM) 64452, age and sex not given, collected by C.H. Townsend on 10 April 1911. Crotalus exsul ruber: Kallert 1927:372. Crotalus ruber ruber: Klauber 194959. Crotalus ruber lucasensis Klauber 194959. Crotalus ruber lorenzoensis Radcliffe and Maslin 1975:490. Type-locality, "San Lorenzo Sur Island in the Gulf of California, Baja California Norte, Mexico." Holotype, San Diego Society of Natural History (SDSNH) 46009, adult male, collected by C.E. -
HERP. G66 A7 Uhiumiiy B{ Koiifttu
HERP. QL G66 .06 A7 The UHiumiiy b{ Koiifttu Wtmm «i Hobiuit Kiftto'uf HARVARD UNIVERSITY G Library of the Museum of Comparative Zoology UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Copies of publications may be obtained from the Publications Secretary, Museum of Natural History, University of Kansas, Law- rence, Kansas 66045 Price for this number: $6.00 postpaid Front cover: The subspecies of the ridgenose rattlesnake C. iv. (Crotalus willardi). Clockwise, starting from the upper left, amahilis, C. w. meridionalis, C. w. silus, and C. w. willardi. All photographs by Joseph T. Collins, with the cooperation of the Dallas Zoo. University of Kansas Museum of Natural History Special Publication No. 5 December 14, 1979 THE NATURAL HISTORY OF MEXICAN RATTLESNAKES By BARRY L. ARMSTRONG Research Associate and JAMES B. MURPHY Curator Department of Herpetology Dallas Zoo 621 East Clarendon Drive Dallas, Texas 75203 University of Kansas Lawrence 1979 University of Kansas Publications Museum of Natural History Editor: E. O. Wiley Co-editor: Joseph T. Collins Special Publication No. 5 pp. 1-88; 43 figures 2 tables Published 14 December 1979 MUS. COMP. ZOO' MAY 1 7 IPR? HARVARD Copyrighted 1979 UNIVERSITY By Museum of Natural History University of Kansas '~\ Lawrence, Kansas 66045 U.S.A. Printed By University of Kansas Printing Service Lawrence, Kansas ISBN: 0-89338-010-5 To Jonathan A. Campbell for his encouragement *?;:»:j>.^ ,_.. = -V-.^. ^4^4 PREFACE Beginning in November, 1966, studies on rattlesnakes (genera Crotalus and Sistrurus) and other pit vipers were initiated at the Dallas Zoo which included techniques for maintenance and disease treatments, in conjunction with observations on captive and wild populations. -
(Crotalus Oreganus Helleri) Hunting Behavior Through Community Science
diversity Article Quantifying Southern Pacific Rattlesnake (Crotalus oreganus helleri) Hunting Behavior through Community Science Emily R. Urquidi * and Breanna J. Putman Department of Biology, California State University San Bernardino, 5500 University Parkway, San Bernardino, CA 92407, USA; [email protected] * Correspondence: [email protected] Abstract: It is increasingly important to study animal behaviors as these are the first responses organisms mount against environmental changes. Rattlesnakes, in particular, are threatened by habitat loss and human activity, and require costly tracking by researchers to quantify the behaviors of wild individuals. Here, we show how photo-vouchered observations submitted by community members can be used to study cryptic predators like rattlesnakes. We utilized two platforms, iNaturalist and HerpMapper, to study the hunting behaviors of wild Southern Pacific Rattlesnakes. From 220 observation photos, we quantified the direction of the hunting coil (i.e., “handedness”), microhabitat use, timing of observations, and age of the snake. With these data, we looked at whether snakes exhibited an ontogenetic shift in behaviors. We found no age differences in coil direction. However, there was a difference in the microhabitats used by juveniles and adults while hunting. We also found that juveniles were most commonly observed during the spring, while adults were more consistently observed throughout the year. Overall, our study shows the potential of using Citation: Urquidi, E.R.; Putman, B.J. community science to study the behaviors of cryptic predators. Quantifying Southern Pacific Rattlesnake (Crotalus oreganus helleri) Keywords: citizen science; conservation; ontogeny; behavioral lateralization; snakes Hunting Behavior through Community Science. Diversity 2021, 13, 349. https://doi.org/10.3390/ d13080349 1. -
Toxicological Comparison of Crotalus Ruber Lucasensis Venom from Different Ecoregions of the Baja California Peninsula
Toxicon 187 (2020) 111–115 Contents lists available at ScienceDirect Toxicon journal homepage: http://www.elsevier.com/locate/toxicon Short communication Toxicological comparison of Crotalus ruber lucasensis venom from different ecoregions of the Baja California Peninsula Ivan´ Fernando Pozas-Ocampo a, Alejandro Carbajal-Saucedo b, Ana Bertha Gatica-Colima c, Amaury Cordero-Tapia a, Gustavo Arnaud-Franco a,* a Centro de Investigaciones Biologicas´ Del Noroeste SC, Instituto Polit´ecnico Nacional, #195 Col. Playa Palo Santa Rita Sur, La Paz, BCS, CP 23096, Mexico b ISBI Biosciences S.C, Alta Tension´ #4, Huitzilac, Morelos, CP 62510, Mexico c Universidad Autonoma´ de Ciudad Juarez,´ Instituto de Ciencias Biom´edicas, Anillo Envolvente Del PRONAF y Estocolmo, S/n. Ciudad Juarez,´ Chihuahua, CP 32310, Mexico ARTICLE INFO ABSTRACT Keywords: The Baja California Peninsula possesses a mosaic of ecoregions that offers a wide variety of environments for the Red diamond rattlesnake species that here inhabit. Here we report biological variations in. Toxicology Crotalus ruber lucasensis venom from arid, semiarid and tropical eco-regions. Lethal (1.4–6.8 mg/kg), ede Venom matogenic (0.3–0.5 μg) and defibrinogenating (from non-detectable to 20 μg) activities were found to have Hemorrhage significant differences among eco-regions. Edema PLA2 Snake venoms of the Viperidae family are composed of a complex of the arid Magdalena Plains eco-region (MP); El Comitan,´ representa mixture of proteins (Calvete et al., 2010; Kang et al., 2011; Mackessy, tive of semiarid Central Gulf Coast (CGC), and; Santiago, representative 2008), which may vary at an inter- and intra-specific level, which is a of tropical Cape Deciduous Forest (CDF). -
Feeding Ecology of the Endemic Rattleless Rattlesnake, Crotalus Catalinensis, of Santa Catalina Island, Gulf of California, Mexico
Copeia, 2007(1), pp. 80–84 Feeding Ecology of the Endemic Rattleless Rattlesnake, Crotalus catalinensis, of Santa Catalina Island, Gulf of California, Mexico HE´ CTOR AVILA-VILLEGAS,MARCIO MARTINS, AND GUSTAVO ARNAUD Crotalus catalinensis is a rattleless rattlesnake endemic to Santa Catalina Island, in the Gulf of California, Mexico. It has been hypothesized that the lack of a rattle in this species is a stealth adaptation for hunting birds in vegetation. We provide detailed data on the diet of C. catalinensis from samples obtained during nine trips to the island in 2002–2004. Over two-thirds (70%) of the diet of C. catalinensis was composed of the Santa Catalina Deer Mouse (Peromyscus slevini). The remaining prey were lizards (Dipsosaurus catalinensis, Uta squamata, and Sceloporus lineatulus). There was an ontogenetic shift in diet and higher feeding activity during the dry season. The diet of this species is only a small subset of the diet of its supposed closest relative, C. ruber, probably as a result of limited diversity of prey on the island. The lack of birds in the diet of C. catalinensis argues against the supposed importance of birds as an essential feature for the hypothesis relating the lack of a rattle with a stealth hunting technique for birds in vegetation. However, since P. slevini is partially arboreal, there remains the possibility that the lack of a rattle is an adaptation for stealth hunting for mice in vegetation. HE rattleless rattlesnake, Crotalus catalinensis, Catalina Leaf-Toed Gecko, Phyllodactylus bugastrole- T is endemic to Santa Catalina Island, in the pis. Avila-Villegas et al. -
Spatial Ecology, Habitat Use, and Survivorship of Resident and Translocated Red Diamond Rattlesnakes (Crotalus Ruber)
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/280494883 Spatial ecology, habitat use, and survivorship of resident and translocated red diamond rattlesnakes (Crotalus ruber) Chapter · January 2008 CITATIONS READS 13 163 5 authors, including: Jean-Pierre Montagne Jeff Alfred Tracey San Diego Zoo United States Geological Survey 6 PUBLICATIONS 87 CITATIONS 23 PUBLICATIONS 154 CITATIONS SEE PROFILE SEE PROFILE Allison C. Alberts San Diego Zoo 85 PUBLICATIONS 2,663 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: 3D MKDE View project California ground squirrel translocation View project All content following this page was uploaded by Jeff Alfred Tracey on 28 January 2016. The user has requested enhancement of the downloaded file. Spatial ecology, habitat use, and survivorship of resident and translocated Red Diamond Rattlesnakes (Crotalus ruber) Tracey K. Brown1, 2, 4, Jeffrey M. Lemm2, Jean-Pierre Montagne2, Jeff A. Tracey3 and Allison C. Alberts2 1 Department of Biological Sciences California State University, San Marcos San Marcos, CA 92096 2 Conservation and Research for Endangered Species Zoological Society of San Diego 15600 San Pasqual Valley Road Escondido, CA 92027-7000 3 Department of Fishery and Wildlife Biology Colorado State University Fort Collins, CO 80523 4 Corresponding Author email: [email protected] 1 1 ABSTRACT 2 Red Diamond Rattlesnakes (Crotalus ruber) have a very restricted range in the United 3 States and are considered a species of special concern in California. Over a five year 4 period (1999-2004), we used radio-telemetry to collect data on the movement ecology 5 and habitat use of this little-studied species on protected coastal sage scrub land 6 managed by the San Diego Zoo’s Wild Animal Park. -
Conservation Status of the Herpetofauna of Baja California, México and Associated Islands in the Sea of Cortez and Pacific Ocean
Herpetological Conservation and Biology 4(3):358-378. Submitted: 3 June 2009; Accepted: 11 October 2009. CONSERVATION STATUS OF THE HERPETOFAUNA OF BAJA CALIFORNIA, MÉXICO AND ASSOCIATED ISLANDS IN THE SEA OF CORTEZ AND PACIFIC OCEAN 1, 4 2 3 ROBERT E. LOVICH , L. LEE GRISMER , AND GUSTAVO DANEMANN 1Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, California 92350,USA, 2Department of Biology, LaSierra University, Riverside, California, 92515 USA 3Pronatura Noroeste, Calle Décima Nº60, Zona Centro, Ensenada, Baja California, CP 22800, México 4Present Address: Naval Facilities Engineering Command, Southwest;1220 Pacific Highway, San Diego, California 92132, USA, e-mail: [email protected] Abstract.—The herpetofauna of the Baja California Peninsula represent a unique assemblage of the biodiversity and heritage of México. Pressure from increasing development and land conversion of the second longest peninsula in the world, and its islands, requires a modern synthesis of the conservation status of the herpetofauna. Herein, we evaluate the herpetofauna by assessing regulatory protections, natural protected land areas, and maintenance of ex situ species in accredited zoos. We also summarize recent changes to the taxonomy and nomenclature for this herpetofauna, as well as range extensions that further our understanding of species distributions, many of which are poorly understood. Recommendations are given to enhance and further strengthen conservation actions in Baja California, México. Key Words.—amphibians, Baja California, conservation, México, reptiles, Sea of Cortez INTRODUCTION the northwest Pacific Coast. Inland from the northern peninsula are the highest elevations comprising The Baja California Peninsula, in northwestern chaparral, oak woodland, and coniferous forest México, consists of the states of Baja California and communities (Wiggins 1980). -
Phylogenetically Diverse Diets Favor More Complex Venoms in North
Phylogenetically diverse diets favor more complex venoms in North American pitvipers Matthew L. Holdinga,b,1 , Jason L. Stricklanda,2 , Rhett M. Rautsawa , Erich P. Hofmanna,3 , Andrew J. Masona,c, Michael P. Hoganb , Gunnar S. Nystromb, Schyler A. Ellsworthb , Timothy J. Colstonb,4 , Miguel Borjad, Gamaliel Castaneda-Gayt˜ an´ d , Christoph I. Grunwald¨ e, Jason M. Jonese , Luciana A. Freitas-de-Sousaf , Vincent Louis Vialag,h , Mark J. Margresa,i,5 , Erika Hingst-Zaherj , Inacio´ L. M. Junqueira-de-Azevedog,h , Ana M. Moura-da-Silvaf,k , Felipe G. Grazziotinl , H. Lisle Gibbsc , Darin R. Rokytab , and Christopher L. Parkinsona,m,1 aDepartment of Biological Sciences, Clemson University, Clemson, SC 29634; bDepartment of Biological Science, Florida State University, Tallahassee, FL 32306; cDepartment of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH 43210; dFacultad de Ciencias Biologicas,´ Universidad Juarez´ del Estado de Durango, C.P. 35010 Gomez´ Palacio, Dgo., Mexico; eHERP.MX A.C., Villa del Alvarez,´ Colima 28973, Mexico; fLaboratorio´ de Imunopatologia, Instituto Butantan, Sao˜ Paulo 05503-900, Brazil; gLaboratorio´ de Toxinologia Aplicada, Instituto Butantan, Sao˜ Paulo 05503-900, Brazil; hCenter of Toxins, Immune-Response and Cell Signaling, Sao˜ Paulo 05503-900, Brazil; iDepartment of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138; jMuseu Biologico,´ Instituto Butantan, Sao˜ Paulo 05503-900, Brazil; kInstituto de Pesquisa Cl´ınica Carlos Borborema, Fundac¸ao˜ de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus 69040, Brazil; lLaboratorio´ de Colec¸oes˜ Zoologicas,´ Instituto Butantan, Sao˜ Paulo 05503-900, Brazil; and mDepartment of Forestry and Environmental Conservation, Clemson University, Clemson, SC 29634 Edited by Jonathan B. -
Juvenile Recruitment, Early Growth, and Morphological Variation in the Endangered Santa Catalina Island Rattlesnake, Crotalus Catalinensis
Herpetological Conservation and Biology 7(3):376–382. Submitted: 12 January 2012; Accepted: 5 November 2012; Published: 31 December 2012. JUVENILE RECRUITMENT, EARLY GROWTH, AND MORPHOLOGICAL VARIATION IN THE ENDANGERED SANTA CATALINA ISLAND RATTLESNAKE, CROTALUS CATALINENSIS 1 2 3 MARCIO MARTINS , GUSTAVO ARNAUD , AND HECTOR ÁVILA-VILLEGAS 1Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, 05508-090 São Paulo, São Paulo, Brazil, e-mail: [email protected] 2Centro de Investigaciones Biológicas del Noroeste, Mar Bermejo no. 195, Col. Playa Palo de Santa Rita, C. P. 23090, La Paz, Baja California Sur, Mexico, e-mail: [email protected] 3Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), Liga Periférico Insurgentes Sur No. 4903, 2do piso, Col. Parques del Pedregal, Del. Tlalpan, C. P. 14010, México City, D.F., Mexico, e-mail: [email protected] Abstract.—Life-history information constitutes the raw data for building population models used in species conservation. We provide life-history data for the endangered Santa Catalina Island Rattlesnake, Crotalus catalinensis. We use data from 277 observations of C. catalinensis made between 2002 and 2011 on the island. Mean snout-vent length (SVL) of adult C. catalinensis was 643 mm for males and 631 mm for females; the difference was not significant. The degree of sexual size dimorphism (SSD; using SVL) was -0.02. However, sexes were dimorphic in total length (SVL + tail length), relative tail length, and stoutness. Juvenile recruitment occurs during late-summer. In their first year of life, juveniles seem to grow at a rate of about 1.7 cm/mo. -
Feeding Ecology of Sidewinder Rattlesnakes, Crotalus Cerastes (Viperidae)
Herpetologica, 72(4), 2016, 324–330 Ó 2016 by The Herpetologists’ League, Inc. Feeding Ecology of Sidewinder Rattlesnakes, Crotalus cerastes (Viperidae) 1 2 MICHAEL M. WEBBER,TEREZA JEZKOVA , AND JAVIER A. RODRIGUEZ´ -ROBLES School of Life Sciences, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA ABSTRACT: Dietary studies are important for understanding predator–prey relationships and species interactions because they provide information on the trophic resources available to predators and their potential impact on prey populations. We relied on stomach contents of museum specimens and literature records to examine ontogenetic (size-related), sexual, seasonal, and geographic variation in the feeding habits of Sidewinders, Crotalus cerastes. Sidewinders fed primarily on lizards and slightly less frequently on mammals; birds and snakes were rarely consumed. The vast majority of C. cerastes consumed single prey items ingested head-first. Juvenile and adult female Sidewinders consumed lizards and mammals with similar frequency. We observed an ontogenetic shift in feeding patterns of adult male C. cerastes because they included more mammals in their diets, compared with juvenile males. Sidewinders are classic ambush (sit-and-wait) predators and, as predicted by theory, actively foraging lizards and mammals comprise a considerable fraction of their prey. We documented seasonal shifts in the feeding patterns of Sidewinders, with snakes consuming a greater proportion of lizards during early spring and autumn, and a greater percentage of mammals during late spring and summer. This dietary shift likely results from seasonal changes in the activity patterns of C. cerastes, because individuals can be diurnally active during early spring and autumn but are predominantly nocturnal during late spring and summer. -
The Dynamics of Human and Rattlesnake Conflict in Southern California Aaron Grant Corbit
Loma Linda University TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works Loma Linda University Electronic Theses, Dissertations & Projects 8-2015 The Dynamics of Human and Rattlesnake Conflict in Southern California Aaron Grant Corbit Follow this and additional works at: http://scholarsrepository.llu.edu/etd Part of the Biology Commons Recommended Citation Corbit, Aaron Grant, "The Dynamics of Human and Rattlesnake Conflict in Southern California" (2015). Loma Linda University Electronic Theses, Dissertations & Projects. 347. http://scholarsrepository.llu.edu/etd/347 This Dissertation is brought to you for free and open access by TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. It has been accepted for inclusion in Loma Linda University Electronic Theses, Dissertations & Projects by an authorized administrator of TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. For more information, please contact [email protected]. LOMA LINDA UNIVERSITY School of Medicine in conjunction with the Faculty of Graduate Studies ____________________ The Dynamics of Human and Rattlesnake Conflict in Southern California by Aaron Grant Corbit ____________________ A Dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Biology ____________________ September 2015 © 2015 Aaron Grant Corbit All Rights Reserved Each person whose signature appears below certifies that this dissertation in his/her opinion is adequate, in scope and quality, as a dissertation for the degree Doctor of Philosophy. , Chairperson William K. Hayes, Professor of Biology Leonard Brand, Professor of Biology and Paleontology Sean Bush, Professor of Emergency Medicine, East Carolina University Eric Dugan, Environmental Consultant, Dugan Biological Services Stephen G. Dunbar, Associate Professor of Biology Kerby Oberg, Professor of Pathology and Human Anatomy iii DEDICATION To God for sustaining me through difficult times.