Guide to the Reptiles and Amphibians of the Maasai Mara
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Life History Account for Western Threadsnake
California Wildlife Habitat Relationships System California Department of Fish and Wildlife California Interagency Wildlife Task Group WESTERN THREADSNAKE Rena humilis Family: LEPTOTYPHLOPIDAE Order: SQUAMATA Class: REPTILIA R045 Written by: R. Marlow Reviewed by: T. Papenfuss Edited by: R. Duke, J. Harris DISTRIBUTION, ABUNDANCE, AND SEASONALITY The western threadsnake (once known as the western blind snake) is widely distributed in southern California from the coast to the eastern border at elevations up to 1515 m (5000 ft). It seldom occurs in strictly sandy areas, alluvial flats or dry lakes. Little is known about abundance. A wide variety of habitats at lower elevations is occupied where conditions are suitable for burrowing, or hiding under surface objects and in crevices (Klauber 1940, Brattstrom 1953, Brattstrom and Schwenkmeyer 1951, Stebbins 1954, 1972). SPECIFIC HABITAT REQUIREMENTS Feeding: This snake eats ants, termites, their eggs, larvae and other soft-bodied insects (Stebbins 1954). Cover: This snake burrows, spending most of its time underground. It has also been taken under objects such as logs, rocks and among the roots of shrubs. They have also been taken under granite flakes (Stebbins 1954). Reproduction: No data. Water: The species seems to prefer moister habitats but is found in very arid environments, so permanent water is probably not required (Stebbins 1954). Pattern: This species prefers moist areas. In canyons, stony and sandy deserts, rocky slopes and boulder piles, and scrub. SPECIES LIFE HISTORY Activity Patterns: This snake appears on the surface at night but may be active underground at other times. Greatest seasonal activity occurs from April to August (Stebbins 1954). -
Reproductive Specializations in a Viviparous African Skink: Implications for Evolution and Biological Conservation Daniel G
Trinity College Trinity College Digital Repository Faculty Scholarship 8-2010 Reproductive Specializations in a Viviparous African Skink: Implications for Evolution and Biological Conservation Daniel G. Blackburn Trinity College, [email protected] Alexander F. Flemming University of Stellenbosch Follow this and additional works at: http://digitalrepository.trincoll.edu/facpub Part of the Biology Commons Herpetological Conservation and Biology 5(2):263-270. Symposium: Reptile Reproduction REPRODUCTIVE SPECIALIZATIONS IN A VIVIPAROUS AFRICAN SKINK AND ITS IMPLICATIONS FOR EVOLUTION AND CONSERVATION 1 2 DANIEL G. BLACKBURN AND ALEXANDER F. FLEMMING 1Department of Biology and Electron Microscopy Facility, Trinity College, Hartford, Connecticut 06106, USA, e-mail: [email protected] 2Department of Botany and Zoology, University of Stellenbosch, Stellenbosch 7600, South Africa Abstract.—Recent research on the African scincid lizard, Trachylepis ivensi, has significantly expanded the range of known reproductive specializations in reptiles. This species is viviparous and exhibits characteristics previously thought to be confined to therian mammals. In most viviparous squamates, females ovulate large yolk-rich eggs that provide most of the nutrients for development. Typically, their placental components (fetal membranes and uterus) are relatively unspecialized, and similar to their oviparous counterparts. In T. ivensi, females ovulate tiny eggs and provide nutrients for embryonic development almost entirely by placental means. Early in gestation, embryonic tissues invade deeply into maternal tissues and establish an intimate “endotheliochorial” relationship with the maternal blood supply by means of a yolk sac placenta. The presence of such an invasive form of implantation in a squamate reptile is unprecedented and has significant functional and evolutionary implications. Discovery of the specializations of T. -
Eli Greenbaum, Ph.D
ELI GREENBAUM, PH.D. Curriculum Vitae PRESENT ADDRESS University of Texas at El Paso Cell: (785) 393-3583 Dept. of Biological Sciences Office: (915) 747-5553 500 West University Ave. Lab: (915) 747-5645 El Paso, TX 79968* FAX: (915) 747-5808 *zip code 79902 for FEDEX deliveries E-mail: [email protected] WEBSITES Homepage: http://eligreenbaum.iss.utep.edu/default.htm Blog from 2014: http://greenbaum2014.at.utep.edu/category/fieldwork/2014-expedition/ Blog from 2013: http://greenbaum.at.utep.edu/index.php/2013-expedition ACADEMIC POSITIONS 2013–present. Associate Professor, Dept. of Biological Sciences, University of Texas at El Paso. 2008–2012. Assistant Professor, Dept. of Biological Sciences, University of Texas at El Paso. 2006–2008. Postdoctoral Research Fellow, Dept. of Biology, Villanova University, Villanova, PA. EDUCATION 2006. Ph.D. (Ecology and Evolutionary Biology). The University of Kansas, Lawrence. Oral exam: 4 November 2002. Dissertation title: Molecular systematics of New World microhyline frogs, with an emphasis on the Middle American genus Hypopachus. Dissertation defense: 25 January 2006 (defended with honors). Advisor: Dr. Linda Trueb. 1998. M.S. (Biology). University of Louisiana at Monroe, Monroe. Thesis title: Sexual differentiation in the spiny softshell turtle (Apalone spinifera). Advisor: Dr. John L. Carr. 1996. B.S. (Biological Sciences). Binghamton University, Binghamton, New York. 1992. High School Diploma. City Honors High School, Buffalo, New York. PENDING GRANTS 2014. Institute for Museum and Library Services, Museums for America Program, $150,000. Natural History Collection Stewardship for the 21st Century at the University of Texas at El Paso. PI. Resubmission. 2015. NSF Biodiversity: Discovery & Analysis Program. -
Raptor Road Survey of Northern Kenya 2–15 May 2016
Raptor Road Survey of northern Kenya 2–15 May 2016 Darcy Ogada, Martin Odino, Peter Wairasho and Benson Mugambi 1 Summary Given the rapid development of northern Kenya and the number of large-scale infrastructure projects that are planned for this region, we undertook a two-week road survey to document raptors in this little-studied region. A team of four observers recorded all raptors seen during road transects over 2356 km in the areas of eastern Lake Turkana, Illeret, Huri Hills, Forolle, Moyale, Marsabit and Laisamis. Given how little is known about the biodiversity in this region we also recorded observations of large mammals, reptiles and non-raptorial birds. Our surveys were conducted immediately after one of the heaviest rainy periods in this region in recent memory. We recorded 770 raptors for an average of 33 raptors/100 km. We recorded 31 species, which included two Palaearctic migrants, Black Kite (Milvus migrans) and Montagu’s Harrier, despite our survey falling outside of the typical migratory period. The most abundant raptors were Rüppell’s Vultures followed by Eastern Pale Chanting Goshawk, Hooded Vulture and Yellow-billed Kite (M. migrans parasitus). Two species expected to be seen, but that were not recorded were White-headed Vulture and Secretarybird. In general, vultures were seen throughout the region. The most important areas for raptors were Marsabit National Park, followed by the area from Huri Hills to Forolle and the area south of Marsabit Town reaching to Ololokwe. There was a surprising dearth of large mammals, particularly in Sibiloi and Marsabit National parks, which likely has implications for raptor populations. -
The Herpetofauna of the Cubango, Cuito, and Lower Cuando River Catchments of South-Eastern Angola
Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 10(2) [Special Section]: 6–36 (e126). The herpetofauna of the Cubango, Cuito, and lower Cuando river catchments of south-eastern Angola 1,2,*Werner Conradie, 2Roger Bills, and 1,3William R. Branch 1Port Elizabeth Museum (Bayworld), P.O. Box 13147, Humewood 6013, SOUTH AFRICA 2South African Institute for Aquatic Bio- diversity, P/Bag 1015, Grahamstown 6140, SOUTH AFRICA 3Research Associate, Department of Zoology, P O Box 77000, Nelson Mandela Metropolitan University, Port Elizabeth 6031, SOUTH AFRICA Abstract.—Angola’s herpetofauna has been neglected for many years, but recent surveys have revealed unknown diversity and a consequent increase in the number of species recorded for the country. Most historical Angola surveys focused on the north-eastern and south-western parts of the country, with the south-east, now comprising the Kuando-Kubango Province, neglected. To address this gap a series of rapid biodiversity surveys of the upper Cubango-Okavango basin were conducted from 2012‒2015. This report presents the results of these surveys, together with a herpetological checklist of current and historical records for the Angolan drainage of the Cubango, Cuito, and Cuando Rivers. In summary 111 species are known from the region, comprising 38 snakes, 32 lizards, five chelonians, a single crocodile and 34 amphibians. The Cubango is the most western catchment and has the greatest herpetofaunal diversity (54 species). This is a reflection of both its easier access, and thus greatest number of historical records, and also the greater habitat and topographical diversity associated with the rocky headwaters. -
Nyika and Vwaza Reptiles & Amphibians Checklist
LIST OF REPTILES AND AMPHIBIANS OF NYIKA NATIONAL PARK AND VWAZA MARSH WILDLIFE RESERVE This checklist of all reptile and amphibian species recorded from the Nyika National Park and immediate surrounds (both in Malawi and Zambia) and from the Vwaza Marsh Wildlife Reserve was compiled by Dr Donald Broadley of the Natural History Museum of Zimbabwe in Bulawayo, Zimbabwe, in November 2013. It is arranged in zoological order by scientific name; common names are given in brackets. The notes indicate where are the records are from. Endemic species (that is species only known from this area) are indicated by an E before the scientific name. Further details of names and the sources of the records are available on request from the Nyika Vwaza Trust Secretariat. REPTILES TORTOISES & TERRAPINS Family Pelomedusidae Pelusios rhodesianus (Variable Hinged Terrapin) Vwaza LIZARDS Family Agamidae Acanthocercus branchi (Branch's Tree Agama) Nyika Agama kirkii kirkii (Kirk's Rock Agama) Vwaza Agama armata (Eastern Spiny Agama) Nyika Family Chamaeleonidae Rhampholeon nchisiensis (Nchisi Pygmy Chameleon) Nyika Chamaeleo dilepis (Common Flap-necked Chameleon) Nyika(Nchenachena), Vwaza Trioceros goetzei nyikae (Nyika Whistling Chameleon) Nyika(Nchenachena) Trioceros incornutus (Ukinga Hornless Chameleon) Nyika Family Gekkonidae Lygodactylus angularis (Angle-throated Dwarf Gecko) Nyika Lygodactylus capensis (Cape Dwarf Gecko) Nyika(Nchenachena), Vwaza Hemidactylus mabouia (Tropical House Gecko) Nyika Family Scincidae Trachylepis varia (Variable Skink) Nyika, -
Journal of the East Africa Natural History Society and National Museum
JOURNAL OF THE EAST AFRICA NATURAL HISTORY SOCIETY AND NATIONAL MUSEUM 15 October, 1978 Vol. 31 No. 167 A CHECKLIST OF mE SNAKES OF KENYA Stephen Spawls 35 WQodland Rise, Muswell Hill, London NIO, England ABSTRACT Loveridge (1957) lists 161 species and subspecies of snake from East Mrica. Eighty-nine of these belonging to some 41 genera were recorded from Kenya. The new list contains some 106 forms of 46 genera. - Three full species have been deleted from Loveridge's original checklist. Typhlops b. blanfordii has been synonymised with Typhlops I. lineolatus, Typhlops kaimosae has been synonymised with Typhlops angolensis (Roux-Esteve 1974) and Co/uber citeroii has been synonymised with Meizodon semiornatus (Lanza 1963). Of the 20 forms added to the list, 12 are forms collected for the first time in Kenya but occurring outside its political boundaries and one, Atheris desaixi is a new species, the holotype and paratypes being collected within Kenya. There has also been a large number of changes amongst the 89 original species as a result of revisionary systematic studies. This accounts for the other additions to the list. INTRODUCTION The most recent checklist dealing with the snakes of Kenya is Loveridge (1957). Since that date there has been a significant number of developments in the Kenyan herpetological field. This paper intends to update the nomenclature in the part of the checklist that concerns the snakes of Kenya and to extend the list to include all the species now known to occur within the political boundaries of Kenya. It also provides the range of each species within Kenya with specific locality records . -
Morphology, Locomotor Performance and Habitat Use In
applyparastyle “fig//caption/p[1]” parastyle “FigCapt” Biological Journal of the Linnean Society, 2020, XX, 1–12. With 4 figures. Morphology, locomotor performance and habitat use in Downloaded from https://academic.oup.com/biolinnean/advance-article-abstract/doi/10.1093/biolinnean/blaa024/5802286 by guest on 15 March 2020 southern African agamids W. C. TAN1,2,3,*, , B. VANHOOYDONCK4, J. MEASEY3, and A. HERREL1,4, 1UMR 7179 C.N.R.S/M.N.H.N., Département Adaptations du Vivant, 55 rue Buffon, 75005, Paris Cedex 5, France 2Université de Poitiers – UFR Sciences Fondamentales et Appliquées, Laboratoire EBI Ecologie & Biologie des Interactions, UMR CNRS 7267, Poitiers, France 3Centre for Invasion Biology, Department of Botany & Zoology, Stellenbosch University, Stellenbosch, South Africa 4Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerpen, Belgium Received 11 December 2019; revised 10 February 2020; accepted for publication 10 February 2020 Understanding the relationships between form and function can help us to understand the evolution of phenotypic diversity in different ecological contexts. Locomotor traits are ecologically relevant as they reflect the ability of an organism to escape from predators, to catch prey or to defend territories. As such, locomotion provides a good model to investigate how environmental constraints may influence an organism’s performance. Here, we investigate the ecomorphological relationships between limb morphology, locomotor performance (sprint speed and endurance) and habitat use in six southern African agamid species. The investigated agamid species showed differences in hind limb and toe lengths. Both of these traits were further correlated with endurance capacity. This association was supported by stepwise multiple regression analyses. -
Identification and Characterization of Two Novel Syncytin-Like Retroviral Envelope Genes, Captured for a Possible Role in the At
Identification and characterization of 106 S two novel syncytin-like retroviral SACL envelope genes, captured for a 8 possible role in the atypical structure : 201 of the hyena placenta and in the NNT emergence of the non-mammalian Mabuya lizard placenta Thèse de doctorat de l'Université Paris-Saclay préparée à l'UMR 9196, Gustave Roussy École doctorale n°582 cancérologie: biologie, médecine, santé (CBMS) Spécialité de doctorat: aspects moléculaires et cellulaires de la biologie Thèse présentée et soutenue à Villejuif, le 23 mai 2018, par Mathis Funk Composition du Jury : Uriel Hazan Professeur des université, ENS Paris-Saclay (– UMR 8113) Président Jean-Luc Battini Directeur de recherche, IRIM (– UMR 9004) Rapporteur Olivier Schwartz Directeur de recherche, Institut Pasteur (– UMR 3569) Rapporteur Pascale Chavatte-Palmer Directrice de recherche, INRA (– UMR 1198) Examinatrice François Mallet Directeur de recherche, bioMérieux (– EA 7426) Examinateur Thierry Heidmann Directeur de recherche, CNRS (– UMR 9196) Directeur de thèse Acknowledgments I would first like to thank the members of the jury for taking the time to read the present manuscript, which turned out a bit longer than I had planned. I would like to thank Uriel Hazan for accepting to be the president of this jury, book-ending his involvement in my studies. What had started at the ENS Cachan and continued during my Master’s degree at the Institut Pasteur, finally reaches its culmination with the present work, on a topic that Uriel suggested I look into. I would like to sincerely thank Jean-Luc Battini and Olivier Schwartz for their critical reading and evaluation of the present manuscript and their positive feedback. -
Ancestral Reconstruction of Diet and Fang Condition in the Lamprophiidae: Implications for the Evolution of Venom Systems in Snakes
Journal of Herpetology, Vol. 55, No. 1, 1–10, 2021 Copyright 2021 Society for the Study of Amphibians and Reptiles Ancestral Reconstruction of Diet and Fang Condition in the Lamprophiidae: Implications for the Evolution of Venom Systems in Snakes 1,2 1 1 HIRAL NAIK, MIMMIE M. KGADITSE, AND GRAHAM J. ALEXANDER 1School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg. PO Wits, 2050, Gauteng, South Africa ABSTRACT.—The Colubroidea includes all venomous and some nonvenomous snakes, many of which have extraordinary dental morphology and functional capabilities. It has been proposed that the ancestral condition of the Colubroidea is venomous with tubular fangs. The venom system includes the production of venomous secretions by labial glands in the mouth and usually includes fangs for effective delivery of venom. Despite significant research on the evolution of the venom system in snakes, limited research exists on the driving forces for different fang and dental morphology at a broader phylogenetic scale. We assessed the patterns of fang and dental condition in the Lamprophiidae, a speciose family of advanced snakes within the Colubroidea, and we related fang and dental condition to diet. The Lamprophiidae is the only snake family that includes front-fanged, rear-fanged, and fangless species. We produced an ancestral reconstruction for the family and investigated the pattern of diet and fangs within the clade. We concluded that the ancestral lamprophiid was most likely rear-fanged and that the shift in dental morphology was associated with changes in diet. This pattern indicates that fang loss, and probably venom loss, has occurred multiple times within the Lamprophiidae. -
Arrival and Diversification of Mabuyine Skinks (Squamata: Scincidae) in the Neotropics Based on a Fossil-Calibrated Timetree
Arrival and diversification of mabuyine skinks (Squamata: Scincidae) in the Neotropics based on a fossil-calibrated timetree Anieli Guirro Pereira and Carlos G. Schrago Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil ABSTRACT Background. The evolution of South American Mabuyinae skinks holds significant biogeographic interest because its sister lineage is distributed across the African continent and adjacent islands. Moreover, at least one insular species, Trachylepis atlantica, has independently reached the New World through transoceanic dispersal. To clarify the evolutionary history of both Neotropical lineages, this study aimed to infer an updated timescale using the largest species and gene sampling dataset ever assembled for this group. By extending the analysis to the Scincidae family, we could employ fossil information to estimate mabuyinae divergence times and carried out a formal statistical biogeography analysis. To unveil macroevolutionary patterns, we also inferred diversification rates for this lineage and evaluated whether the colonization of South American continent significantly altered the mode of Mabuyinae evolution. Methods. A time-calibrated phylogeny was inferred under the Bayesian framework employing fossil information. This timetree was used to (i) evaluate the historical biogeography of mabuiyines using the statistical approach implemented in Bio- GeoBEARS; (ii) estimate macroevolutionary diversification rates of the South American Mabuyinae lineages and the patterns of evolution of selected traits, namely, the mode of reproduction, body mass and snout–vent length; (iii) test the hypothesis of differential macroevolutionary patterns in South American lineages in BAMM and GeoSSE; and Submitted 21 November 2016 (iv) re-evaluate the ancestral state of the mode of reproduction of mabuyines. -
A Taxonomic Study of the Genus Hypsiglena
Great Basin Naturalist Volume 5 Number 3 – Number 4 Article 1 12-29-1944 A taxonomic study of the genus Hypsiglena Wilmer W. Tanner Provo High School Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Tanner, Wilmer W. (1944) "A taxonomic study of the genus Hypsiglena," Great Basin Naturalist: Vol. 5 : No. 3 , Article 1. Available at: https://scholarsarchive.byu.edu/gbn/vol5/iss3/1 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. ., .The Great Basin Naturalist 7>^^ of Comai;^^ Published by the A«'*^ Zootomy 'U\ I^KH.MMMKNT OF ZoOI.OC.Y AND ExTOMOI.OCV UtInrT i.99»fl46*) J BiMCHAM Young UxiVEKsny. Pkovo, Utah v.,-- / B K A Hj* Volume V DECEMBER 29, 1944 Nos. 3 & 4 )\( I A TA.\( ).\JK- STL'I)\' OV TH1^ GENUS 1 IN' 'Sl( ilJ-.XA WII.MI-'.K W. TANNKRi I'r.jvo Higli ScIkxiI. Provo, Utah IXTKODUe'lION In ihc Course ol my studies of Utah specimens of the genus Hypsiglena it became apparent that 1 could better understand this genus if a large series of specimens were secured for study. Accord- ingl_\- 1 set out tcj bring together by loan as many specimens as possible. As a result over 4(XJ specimens have been assembled and studied. This C(nil(l not have been accomplished without the aid of many workers and insiiiutions who ha\e so graciously allowed me to stutly their specimens.