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Preliminary Analysis of Correlated Evolution of Morphology and Ecological Diversification in Lacertid Lizards
Butll. Soc. Cat. Herp., 19 (2011) Preliminary analysis of correlated evolution of morphology and ecological diversification in lacertid lizards Fèlix Amat Orriols Àrea d'Herpetologia, Museu de Granollers-Ciències Naturals. Francesc Macià 51. 08402 Granollers. Catalonia. Spain. [email protected] Resum S'ha investigat la diversitat morfològica en 129 espècies de lacèrtids i la seva relació amb l'ecologia, per mitjà de mètodes comparatius, utilitzant set variables morfomètriques. La mida corporal és la variable més important, determinant un gradient entre espècies de petita i gran mida independentment evolucionades al llarg de la filogènia dels lacèrtids. Aquesta variable està forta i positivament correlacionada amb les altres, emmascarant els patrons de diversitat morfològica. Anàlisis multivariants en les variables ajustades a la mida corporal mostren una covariació negativa entre les mides relatives de la cua i les extremitats. Remarcablement, les espècies arborícoles i semiarborícoles (Takydromus i el clade africà equatorial) han aparegut dues vegades independentment durant l'evolució dels lacèrtids i es caracteritzen per cues extremadament llargues i extremitats anteriors relativament llargues en comparació a les posteriors. El llangardaix arborícola i planador Holaspis, amb la seva cua curta, constitueix l’única excepció. Un altre cas de convergència ha estat trobat en algunes espècies que es mouen dins de vegetació densa o herba (Tropidosaura, Lacerta agilis, Takydromus amurensis o Zootoca) que presenten cues llargues i extremitats curtes. Al contrari, les especies que viuen en deserts, estepes o matollars amb escassa vegetació aïllada dins grans espais oberts han desenvolupat extremitats posteriors llargues i anteriors curtes per tal d'assolir elevades velocitats i maniobrabilitat. Aquest és el cas especialment de Acanthodactylus i Eremias Abstract Morphologic diversity was studied in 129 species of lacertid lizards and their relationship with ecology by means of comparative analysis on seven linear morphometric measurements. -
The Impact of Overgrazing on Reptile Diversity and Population Dynamics of Pedioplanis L
Bernd Wasiolka The impact of overgrazing on reptile diversity and population dynamics of Pedioplanis l. lineoocellata in the southern Kalahari Dieses Werk ist unter einem Creative Commons Lizenzvertrag lizenziert: Namensnennung - Keine kommerzielle Nutzung - Weitergabe unter gleichen Bedingungen 2.0 Deutschland Um die Lizenz anzusehen, gehen Sie bitte zu: http://creativecommons.org/licenses/by-nc-sa/2.0/de/ Elektronisch veröffentlicht auf dem Publikationsserver der Universität Potsdam: http://opus.kobv.de/ubp/volltexte/2008/1661/ urn:nbn:de:kobv:517-opus-16611 [http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-16611] Institut für Biochemie und Biologie Arbeitsgruppe Vegetationsökologie und Naturschutz Impact of overgrazing on reptile diversity and population dynamics of Pedioplanis l. lineoocellata in the southern Kalahari, South Africa Dissertation zur Erlangung des akademischen Grades "doctor rerum naturalium" (Dr. rer. nat.) in der Wissenschaftsdisziplin " Ökologie" eingereicht an der Mathematisch-Naturwissenschaftlichen Fakultät der Universität Potsdam von Bernd Wasiolka Potsdam, den 31.08.2007 Table of Contents Preface 1 General Introduction 2 Chapter 1 Effects of habitat degradation on regional reptile diversity 8 1. Abstract 9 2. Introduction 10 3. Methods 11 3.1. Study area and period 11 3.2. Reptile survey 12 3.3. Vegetation survey 13 3.4. Prey availability 13 3.5. Habitat preference 13 3.6. Data analyses 13 4. Results 15 4.1 Vegetation survey 15 4.2 Reptile survey 16 4.3 Prey availability 18 4.4 Habitat preference 19 5. Discussion 22 5.1. Thermoregulation 22 5.2. Predation risk 23 5.3. Resource availability 23 5.4. Habitat preference 24 i 5.5. -
A New Nucras Gray, 1838 (Squamata: Lacertidae) from the Strandveld of the Western Cape, South Africa
Zootaxa 4560 (1): 149–163 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4560.1.8 http://zoobank.org/urn:lsid:zoobank.org:pub:615FFE96-38AC-41D5-98F9-7221C1D4BDC4 A new Nucras Gray, 1838 (Squamata: Lacertidae) from the Strandveld of the Western Cape, South Africa AARON M. BAUER1, JACKIE L. CHILDERS2, CHRIS BROECKHOVEN3 & P. LEFRAS N. MOUTON4 1Department of Biology, Villanova University, 800 Lancaster Avenue, Villanova, Pennsylvania 19085, USA. E-mail: [email protected] 2Museum of Vertebrate Zoology, University of California, Berkeley, California 94720, USA. E-mail: [email protected] 3Laboratory of Functional Morphology, Department of Biology, University of Antwerp, Universiteitsplein 1, Wilrijk 2610, Belgium. E-mail: [email protected] 4Department of Botany & Zoology, University of Stellenbosch, Private Bag X1, Matieland, 7602 Stellenbosch, South Africa. E-mail: [email protected] Abstract A striking new sandveld lizard of the Nucras tessellata group is described from the Lambert’s Bay Strandveld of the West- ern Cape Province, South Africa. It is sister to the clade N. livida + N. tessellata, and is phenetically most similar to N. tessellata, from which it differs in its more elongate body and possibly increased number of presacral vertebrae and pat- ternless orange dorsal coloration. The form elegans, described as a species by Andrew Smith (1838), but treated as an infrasubspecific variant by Broadley (1972), also exhibits weak patterning, but is likely a regional color variant. Nucras aurantiaca sp. nov. is the ninth member of the genus found in southern Africa. -
Directional Asymmetry in Hindlimbs of Agamidae and Lacertidae (Reptilia: Lacertilia)
BwlogicalJoumal of& Linnean So&& (2000), 69: 461481. With 3 figures @ doi:10.1006/bij1.1999.0366, available online at http://www.idealibrary.com on lDrbL* Evolution and ecology of developmental processes and of the resulting morphology: directional asymmetry in hindlimbs of Agamidae and Lacertidae (Reptilia: Lacertilia) HERVE SELJGMA" Department of Evolution, systematics and Ecology, The Hebrew Univers-ig ofJmalem, 91 904Jmah, Israel Received 16 Febwv 1999; accepted for publication 27 March 1999 In this paper, the evolution and ecology of directional asymmetry (DA) during the de- velopmental trajectory (DT) is compared with that of its product, morphological DA (MDA). DT and MDA are calculated for two bilateral morphological scale characters of lizards, the number of subdigital lamellae beneath the fourth toe in 10 agamid and 28 lacertid taxa, and the number of rows of ventral scales in 12 lacertid taxa. MDA, the subtraction between left and right sides (classical measure of DA), is functional in adult animals. Results confirm the hypothesis that, in DT, the regression parameters a (constant) and b (regression slope) of counts on the right side with those on the left describe a developmental process. No phylogenetic or environmental effects were observed on a and b, but analyses considering both a and b together show non-random phyletic patterns. Independent analyses deduced the same ancestral DT in Agamidae and Lacertidae. In Lacertidae, distance between pairs of taxa in a+b (standardized values) correlates positively with the phylogenetic distance between taxa. Phyletic trends in MDA are indirect, and due to the link of MDA with a + b. The MDA of species is more dissimilar in sympatry than in allopatry. -
The Relationship of Herpetofaunal
Georgia Southern University Digital Commons@Georgia Southern Electronic Theses and Dissertations Graduate Studies, Jack N. Averitt College of Spring 2009 The Relationship of Herpetofaunal Community Composition to an Elephant (Loxodonta Africana) Modified Savanna oodlandW of Northern Tanzania, and Bioassays with African Elephants Nabil A. Nasseri Follow this and additional works at: https://digitalcommons.georgiasouthern.edu/etd Recommended Citation Nasseri, Nabil A., "The Relationship of Herpetofaunal Community Composition to an Elephant (Loxodonta Africana) Modified Savanna oodlandW of Northern Tanzania, and Bioassays with African Elephants" (2009). Electronic Theses and Dissertations. 763. https://digitalcommons.georgiasouthern.edu/etd/763 This thesis (open access) is brought to you for free and open access by the Graduate Studies, Jack N. Averitt College of at Digital Commons@Georgia Southern. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of Digital Commons@Georgia Southern. For more information, please contact [email protected]. THE RELATIONSHIP OF HERPETOFAUNAL COMMUNITY COMPOSITION TO AN ELEPHANT ( LOXODONTA AFRICANA ) MODIFIED SAVANNA WOODLAND OF NORTHERN TANZANIA, AND BIOASSAYS WITH AFRICAN ELEPHANTS by NABIL A. NASSERI (Under the Direction of Bruce A. Schulte) ABSTRACT Herpetofauna diversity and richness were compared in areas that varied in the degree of elephant impact on the woody vegetation ( Acacia spp.). The study was conducted at Ndarakwai Ranch in northeastern Tanzania. Elephants moving between three National Parks in Kenya and Tanzania visit this property. From August 2007 to March 2008, we erected drift fences and pitfall traps to sample herpetofaunal community and examined species richness and diversity within the damaged areas and in an exclusion plot. -
Patterns of Species Richness, Endemism and Environmental Gradients of African Reptiles
Journal of Biogeography (J. Biogeogr.) (2016) ORIGINAL Patterns of species richness, endemism ARTICLE and environmental gradients of African reptiles Amir Lewin1*, Anat Feldman1, Aaron M. Bauer2, Jonathan Belmaker1, Donald G. Broadley3†, Laurent Chirio4, Yuval Itescu1, Matthew LeBreton5, Erez Maza1, Danny Meirte6, Zoltan T. Nagy7, Maria Novosolov1, Uri Roll8, 1 9 1 1 Oliver Tallowin , Jean-Francßois Trape , Enav Vidan and Shai Meiri 1Department of Zoology, Tel Aviv University, ABSTRACT 6997801 Tel Aviv, Israel, 2Department of Aim To map and assess the richness patterns of reptiles (and included groups: Biology, Villanova University, Villanova PA 3 amphisbaenians, crocodiles, lizards, snakes and turtles) in Africa, quantify the 19085, USA, Natural History Museum of Zimbabwe, PO Box 240, Bulawayo, overlap in species richness of reptiles (and included groups) with the other ter- Zimbabwe, 4Museum National d’Histoire restrial vertebrate classes, investigate the environmental correlates underlying Naturelle, Department Systematique et these patterns, and evaluate the role of range size on richness patterns. Evolution (Reptiles), ISYEB (Institut Location Africa. Systematique, Evolution, Biodiversite, UMR 7205 CNRS/EPHE/MNHN), Paris, France, Methods We assembled a data set of distributions of all African reptile spe- 5Mosaic, (Environment, Health, Data, cies. We tested the spatial congruence of reptile richness with that of amphib- Technology), BP 35322 Yaounde, Cameroon, ians, birds and mammals. We further tested the relative importance of 6Department of African Biology, Royal temperature, precipitation, elevation range and net primary productivity for Museum for Central Africa, 3080 Tervuren, species richness over two spatial scales (ecoregions and 1° grids). We arranged Belgium, 7Royal Belgian Institute of Natural reptile and vertebrate groups into range-size quartiles in order to evaluate the Sciences, OD Taxonomy and Phylogeny, role of range size in producing richness patterns. -
Multiple Evolutionary Origins and Losses of Tooth Complexity
bioRxiv preprint doi: https://doi.org/10.1101/2020.04.15.042796; this version posted April 16, 2020. 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 Multiple evolutionary origins and losses of tooth 2 complexity in squamates 3 4 Fabien Lafuma*a, Ian J. Corfe*a, Julien Clavelb,c, Nicolas Di-Poï*a 5 6 aDevelopmental Biology Program, Institute of Biotechnology, University of Helsinki, FIN- 7 00014 Helsinki, Finland 8 bDepartment of Life Sciences, The Natural History Museum, London SW7 5DB, United 9 Kingdom 10 cLaboratoire d’Écologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Université 11 Claude Bernard Lyon 1 – UMR CNRS 5023, ENTPE, F-69622 Villeurbanne, France 12 13 *Mail: [email protected]; [email protected]; [email protected] bioRxiv preprint doi: https://doi.org/10.1101/2020.04.15.042796; this version posted April 16, 2020. 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. 14 Teeth act as tools for acquiring and processing food and so hold a prominent role in 15 vertebrate evolution1,2. In mammals, dental-dietary adaptations rely on tooth shape and 16 complexity variations controlled by cusp number and pattern – the main features of the 17 tooth surface3,4. -
REPRODUCTION in SPEKE's SAND LIZARD, HELIOBOLUS SPEK/1 (SQUAMATA: LACERTIDAE) from KENYA Stephen R. GOLDBERG Whittier College, D
African Herp News No. 48, pp. 2 - 4 GOLDBERG: Reproduction in Heliobolus spekii from Kenya 63257 - 63259, 65776, 65782, 65785, 65787, 65788, 65790 - 65807, 65809, 65811, 65814 - 65818, 65820 - 65824; North Eastern Province: LACM 93124, 93125, REPRODUCTION IN SPEKE'S SAND LIZARD, HELIOBOLUS SPEK/1 93128, 93129, 93136 - 93138, 93140,93144-93146. (SQUAMATA: LACERTIDAE) FROM KENYA RESULTS AND DISCUSSION Stephen R. GOLDBERG Two stages were present in the testicular cycle of H. spekii (Table 1). (I) Recru- Whittier College, Department of Biology, Whittier, California 90608 USA descence, which occurs prior to the onset of spermiogenesis (sperm formation). E-mail: [email protected] Secondary spermatocytes and spermatocytes are the predominant cells; (2) Sper- miogenesis, in which the seminiferous tubules are lined by clusters of spermatozoa and/or metamorphosing spermatids. Sperm formation occurred during the three INTRODUCTION months from which samples were available. The smallest reproductively active male (spermiogenesis in progress) measured 34 mm (LACM 65799) and was col- Heliobolus spekii is an oviparous terrestrial lizard that occurs in northern and lected in June. One male which measured 33 mm SVL {LACM 65818) had re- southern Kenya, northern Tanzania and extreme eastern Uganda, southern Ethiopia gressed testes and was considered a subadult. and Somalia (Spawls et al. 2002). To my knowledge, the only information on H. Females of H. spekii were significantly larger than males (unpaired /-test = 3. 10, spekii reproduction is a report in the field guide by Spawls et al., 2006, that clutches df = 38, P = 0.0036). Mean clutch size for nine clutches was 3.8 ± 0.83, range = 2 - of 4 - 6 eggs are produced. -
The Herpetofauna of the Langjan Nature Reserve (Limpopo Province
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Herpetozoa Jahr/Year: 2002 Band/Volume: 15_3_4 Autor(en)/Author(s): Schmidt Almuth D. Artikel/Article: The herpetofauna of the Langjan Nature Reserve (Limpopo Province, Republic of South Africa) 121-135 ©Österreichische Gesellschaft für Herpetologie e.V., Wien, Austria, download unter www.biologiezentrum.at HERPETOZOA 15 (3/4): 121 - 135 121 Wien, 30. Dezember 2002 The herpetofauna of the Langjan Nature Reserve (Limpopo Province, Republic of South Africa) (Amphibia, Reptilia) Die Herpetofauna des Langjan-Naturreservates (Provinz Limpopo, Republik Südafrika) (Amphibia, Reptilia) ALMUTH D. SCHMIDT KURZFASSUNG Das Langjan Naturreservat ist ein 4774 ha großes Schutzgebiet in der Limpopo Provinz Südafrikas, 130 km nördlich der Provinzhauptstadt Pietersburg gelegen. Während einer Feldstudie von Januar bis April 1998 und drei kürzeren Aufenthalten zwischen 1999 und 2001 konnten innerhalb des Schutzgebietes insgesamt 43 Reptilien- (3 Schildkröten, 23 Eidechsen, 17 Schlangen) und 7 Amphibienarten nachgewiesen werden. Die Anzahl der aus dem Gebiet bekannten Formen erhöht sich damit auf 47 bei den Reptilien und 10 bei den Amphibien. Die von der Autorin im Untersuchungsgebiet nachgewiesenen Arten werden hinsichtlich ihrer relativen Häufigkeit, ihrer allge- meinen Lebensraumansprüche und Verbreitung im Reservat charakterisiert. Neun weitere, bisher nur außerhalb der Reservatsgrenzen nachgewiesene Reptilienarten -
Potential Invasion Risk of Pet Traded Lizards, Snakes, Crocodiles
diversity Article Potential Invasion Risk of Pet Traded Lizards, Snakes, Crocodiles, and Tuatara in the EU on the Basis of a Risk Assessment Model (RAM) and Aquatic Species Invasiveness Screening Kit (AS-ISK) OldˇrichKopecký *, Anna Bílková, Veronika Hamatová, Dominika K ˇnazovická, Lucie Konrádová, Barbora Kunzová, Jana Slamˇeníková, OndˇrejSlanina, Tereza Šmídová and Tereza Zemancová Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6 - Suchdol 165 21, Prague, Czech Republic; [email protected] (A.B.); [email protected] (V.H.); [email protected] (D.K.); [email protected] (L.K.); [email protected] (J.S.); [email protected] (B.K.); [email protected] (O.S.); [email protected] (T.S.); [email protected] (T.Z.) * Correspondence: [email protected]; Tel.: +420-22438-2955 Received: 30 June 2019; Accepted: 9 September 2019; Published: 13 September 2019 Abstract: Because biological invasions can cause many negative impacts, accurate predictions are necessary for implementing effective restrictions aimed at specific high-risk taxa. The pet trade in recent years became the most important pathway for the introduction of non-indigenous species of reptiles worldwide. Therefore, we decided to determine the most common species of lizards, snakes, and crocodiles traded as pets on the basis of market surveys in the Czech Republic, which is an export hub for ornamental animals in the European Union (EU). Subsequently, the establishment and invasion potential for the entire EU was determined for 308 species using proven risk assessment models (RAM, AS-ISK). Species with high establishment potential (determined by RAM) and at the same time with high potential to significantly harm native ecosystems (determined by AS-ISK) included the snakes Thamnophis sirtalis (Colubridae), Morelia spilota (Pythonidae) and also the lizards Tiliqua scincoides (Scincidae) and Intellagama lesueurii (Agamidae). -
Mitochondrial Gene Arrangement Source Guide
Mitochondrial Gene Arrangement Source Guide Compiled by Jeffrey L. Boore DOE Joint Genome Institute 2800 Mitchell Drive Walnut Creek, CA 94598 [email protected] October 31, 2001 (925) 296-5691 Version 6.1 2 _____________________________________________________________________________ I’ve compiled this guide for anyone who might be interested in mitochondrial genomes, especially their gene arrangements. This guide emphasizes animal mitochondrial genomes and although I believe that this contains all of those published and completely determined, some of those only partially determined may still be missing, especially for vertebrates or arthropods. If you notice such cases, or have any other relevant information that should be included, or especially if you come across an error, please contact me at the e-mail address on the cover. I have tried to be as accurate as possible; however, this source is not authoritative. Please refer to the primary literature for confirmation prior to publishing any information you see here (and, of course, give the authors of such studies proper reference). In some cases only the most comprehensive citation for each mtDNA sequence is listed here. In many cases the database accession number for the sequence is given in parentheses after the taxon name. The taxonomic categories listed are for convenience in interpreting the guide but are not consistent in hierarchical level or degree of detail. It is my intention that this be the last version in text form, and that this will soon be converted into a database to -
Anannotated Checklist of the Lizards of Kenya
rournal of East African Natural History 86: 61-83 (1997) AN ANNOTATED CHECKLIST OF THE LIZARDS OF KENYA Stephen Spawls Sandford English Community School P.O. Box 30056, Addis Ababa, Ethiopia Damaris Rotich Department of Herpetology, National Museums of Kenya P.O. Box 40658, Nairobi, Kenya ABSTRACT This checklist records the 99 species of lizards known at present from Kenya, and which are divided amongst eight families: Gekkonidae 33 species, Agamidae seven, Chamaeleonidae 17, Scincidae 22, Lacertidae 12, Cordylidae five, Varanidae two, Amphisbaenidae one. Brief data on the distribution of all species is given, with some localities, details of habitat and (in some cases) status of subspecies. Some taxonomic notes on certain problematic species/genera are included, plus a brief discussion of the zoogeography of Kenya's lizards, and a gazetteer of localities. INTRODUCTION There is no checklist that deals solely with Kenya's lizards. Loveridge's (1957) checklist listed all the reptiles and amphibians then recorded from Kenya, Tanzania and Uganda, and comprehensive checklists of the reptiles of Tanzania (Broadley & Howell, 1991) and Somalia (Lanza, 1990) now exist. This paper intends to update the nomenclature in that part of Loveridge's (1957) list that concerns the lizards of Kenya, and to extend the list to include all species now known to occur within the political boundaries of Kenya. Brief notes on the distribution of each species within Kenya are given, with representative localities; where the species is known only from a handful of specimens, all localities are listed. Since the taxonomy of lizards in eastern Africa is in a state of flux, the status of a number of species is still unclear and the known distribution patchy, we have chosen to deal only with full species, and ignore details of the status and distribution of subspecies, although some brief notes on subspecies are included.