Cfreptiles & Amphibians
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Gekko Canaensis Sp. Nov. (Squamata: Gekkonidae), a New Gecko from Southern Vietnam
Zootaxa 2890: 53–64 (2011) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2011 · Magnolia Press ISSN 1175-5334 (online edition) Gekko canaensis sp. nov. (Squamata: Gekkonidae), a new gecko from Southern Vietnam NGO VAN TRI1 & TONY GAMBLE2 1Department of Environmental Management and Technology, Institute of Tropical Biology, Vietnamese Academy of Sciences and Tech- nology, 85 Tran Quoc Toan Street, District 3, Hochiminh City, Vietnam. E-mail: [email protected] 2Department of Genetics, Cell Biology and Development, University of Minnesota 6-160 Jackson Hall, 321 Church St SE, Minneapolis MN 55455. USA. E-mail: [email protected] Abstract A new species of Gekko Laurenti 1768 is described from southern Vietnam. The species is distinguished from its conge- ners by its moderate size: SVL to maximum 108.5 mm, dorsal pattern of five to seven white vertebral blotches between nape and sacrum and six to seven pairs of short white bars on flanks between limb insertions, 1–4 internasals, 30–32 ven- tral scale rows between weak ventrolateral folds, 14–18 precloacal pores in males, 10–14 longitudinal rows of smooth dor- sal tubercles, 14–16 broad lamellae beneath digit I of pes, 17–19 broad lamellae beneath digit IV of pes, and a single transverse row of enlarged tubercles along the posterior portion of dorsum of each tail segment. Key words: Cà Ná Cape, description, Gekko, Gekko canaensis sp. nov., Gekkonidae, granitic outcrop, Vietnam Introduction Members of the Gekko petricolus Taylor 1962 species group (sensu Panitvong et al. 2010) are rock-dwelling spe- cialists occurring in southeastern Indochina. -
Cretaceous Fossil Gecko Hand Reveals a Strikingly Modern Scansorial Morphology: Qualitative and Biometric Analysis of an Amber-Preserved Lizard Hand
Cretaceous Research 84 (2018) 120e133 Contents lists available at ScienceDirect Cretaceous Research journal homepage: www.elsevier.com/locate/CretRes Cretaceous fossil gecko hand reveals a strikingly modern scansorial morphology: Qualitative and biometric analysis of an amber-preserved lizard hand * Gabriela Fontanarrosa a, Juan D. Daza b, Virginia Abdala a, c, a Instituto de Biodiversidad Neotropical, CONICET, Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucuman, Argentina b Department of Biological Sciences, Sam Houston State University, 1900 Avenue I, Lee Drain Building Suite 300, Huntsville, TX 77341, USA c Catedra de Biología General, Facultad de Ciencias Naturales, Universidad Nacional de Tucuman, Argentina article info abstract Article history: Gekkota (geckos and pygopodids) is a clade thought to have originated in the Early Cretaceous and that Received 16 May 2017 today exhibits one of the most remarkable scansorial capabilities among lizards. Little information is Received in revised form available regarding the origin of scansoriality, which subsequently became widespread and diverse in 15 September 2017 terms of ecomorphology in this clade. An undescribed amber fossil (MCZ Re190835) from mid- Accepted in revised form 2 November 2017 Cretaceous outcrops of the north of Myanmar dated at 99 Ma, previously assigned to stem Gekkota, Available online 14 November 2017 preserves carpal, metacarpal and phalangeal bones, as well as supplementary climbing structures, such as adhesive pads and paraphalangeal elements. This fossil documents the presence of highly specialized Keywords: Squamata paleobiology adaptive structures. Here, we analyze in detail the manus of the putative stem Gekkota. We use Paraphalanges morphological comparisons in the context of extant squamates, to produce a detailed descriptive analysis Hand evolution and a linear discriminant analysis (LDA) based on 32 skeletal variables of the manus. -
Species Account
REPTILIA Order OPHIDIA (Snakes) I. Family COLUBRIDAE Ahaetulla prasina Green Vine Snake This snake was found in Renah Kayu Embun and Napal Licin survey sites at elevation 1400 meters asl and 300 meters asl respectively. Usually it can be seen in degraded habitat including plantation, secondary growth and house compounds, to primary rain forest (Inger and Stuebing, 2005; Kurniati, 2003). It occurs from lowlands up to mountain forests over 1500 meters asl (Kurniati et al., 2001; Kurniati, 2003). It is common species at low elevation (Inger and Stuebing, 2005), but become rare at high elevation such as Renah Kayu Embun survey site. This species is known from South-east Asia, East Indies (Sulawesi and The Lesser Sunda) (Stuebing and Inger, 1999: de Lang and Vogel, 2005). Figure 91. A. prasina (Photograph by H. Kurniati). Amphiesma sp This undescribed snake was found in Muara Labuh survey site at elevation 800 meters asl. It was a nocturnal snake that inhabited strong moving stream bank. The morphology of this snake is similar to A. kerinciense (David and Das, 2003). Possibly, it is a new species, but future study is needed. Figure 92. Amphiesma sp from Muara Labuh (Photograph by H. Kurniati). Aplopeltura boa Blunt-headed Tree Snake This snake was found in Upper Rupit River and Tapan survey sites at elevation 150 meters asl and 550 meters asl respectively. It inhabited lowland primary rain forest. It occurs at elevation between sea level to 1200 meters asl (Kurniati, 2003), but it is confined to be lowland. In Tapan survey site, it was rarely observed. -
Checklist of Herpetofauna of Tasek Bera Ramsar Site, Pahang
Journal of Wildlife and Parks, 34 (2019): In press CHECKLIST OF HERPETOFAUNA OF TASEK BERA RAMSAR SITE, PAHANG *Badmanathan Munisamy, Khairul Nizam Kamaruddin, Amri Izaffi Zamahsasri, Hartini Ithnin & Mohd Firdaus Razali Department of Wildlife and National Parks (PERHILITAN), Peninsular Malaysia, KM 10 Jalan Cheras, 56100 Kuala Lumpur, Malaysia. *Corresponding author email: [email protected] ABSTRACT Tasek Bera Ramsar Site (TBRS) in Pahang is the largest freshwater wetland in Peninsular Malaysia and is protected under the Ramsar Convention. There are varieties of ecosystem around this wetland which support the biodiversity of flora and fauna including herpetofauna. A survey of herpetofauna in TBRS was conducted between 7th and 14th May 2014 to review the species richness in this natural wetland area. Throughout the survey, amphibians and reptiles were actively searched along the lake site, interpretive trails and nearby forests. The captured individuals were photographed and morphology measurements were taken for species identification. A total of 34 individuals comprising of 17 species were caught. Out of these 17 species, five species were amphibians from four families (Bufonidae=1; Ranidae = 2; Rhacophoridae= 1; Dicroglossidae=1), five species were snakes from three families (Colubridae=3; Elapidae=1; Viperidae=1 ) and seven species of lizards from three families (Agamidae=1; Gekkonidae=5; Varanidae=1). The ratio number of individual of amphibians to reptiles captured was almost equal (16:18). The highest captured individuals were from Family Gekkonidae. Hylarana erythraea and Gekko monarchus were the most captured species with six individuals each. These survey findings will be helpful in the management and conservation plan of wildlife, specifically herpetofauna of TBRS. -
Gekko Japonicus)
Central Washington University ScholarWorks@CWU All Master's Theses Master's Theses Summer 2015 The Evolution of Sex Determination and the DMRT1 Gene in the Japanese Gecko (Gekko japonicus) Lisa-Marie Mullen Central Washington University, [email protected] Follow this and additional works at: https://digitalcommons.cwu.edu/etd Part of the Evolution Commons, and the Genetics Commons Recommended Citation Mullen, Lisa-Marie, "The Evolution of Sex Determination and the DMRT1 Gene in the Japanese Gecko (Gekko japonicus)" (2015). All Master's Theses. 229. https://digitalcommons.cwu.edu/etd/229 This Thesis is brought to you for free and open access by the Master's Theses at ScholarWorks@CWU. It has been accepted for inclusion in All Master's Theses by an authorized administrator of ScholarWorks@CWU. For more information, please contact [email protected]. THE EVOLUTION OF SEX DETERMINATION AND THE DMRT1 GENE IN THE JAPANESE GECKO (GEKKO JAPONICUS) __________________________________ A Thesis Presented to The Graduate Faculty Central Washington University ___________________________________ In Partial Fulfillment of the Requirements for the Degree Master of Science Biology ___________________________________ by Lisa-Marie Mullen August 2015 CENTRAL WASHINGTON UNIVERSITY Graduate Studies We hereby approve the thesis of Lisa-Marie Mullen Candidate for the degree of Master of Science APPROVED FOR THE GRADUATE FACULTY ______________ _________________________________________ Dr. Lixing Sun, Committee Chair ______________ _________________________________________ Dr. April Binder ______________ _________________________________________ Dr. Joseph Lorenz ______________ _________________________________________ Dr. Steven Wagner ______________ _________________________________________ Dean of Graduate Studies ii ABSTRACT THE EVOLUTION OF SEX DETERMINATION AND THE DMRT1 GENE IN THE JAPANESE GECKO (GEKKO JAPONICUS) By Lisa-Marie Mullen August 2015 There are different sex-determining mechanisms in our environment. -
A Gecko of the Genus Gekko from Taka-Shima Island
Japanese Journal of Herpetology 12 (3): 127-130 ., Jun. 1988 (C) 1988 by The Herpetological Society of Japan In this paper, I report the external morphology A Gecko of the Genus Gekko of a female gecko with the same common from Taka-shima Island, Hirado, characteristics as the above geckos. The gecko was collected from Taka-shima Island (33°11'N, Nagasaki, Japan (Reptilia: Lac- 129°21'E, Fig. 1), Hirado, Nagasaki, Japan on ertilia) August 26, 1980. There has been no report on geckos from the island. Among the neigh- SHOJI TOKUNAGA boring islands, G. japonicus was found on Azuchio-shima Island, Ikitsuki-jima Is., Fukue- Abstract: A female gecko collected from Taka- jima Is., and Uku-jima Is. (Shibata, 1983; shima Island (33°11'N, 129°21'E) had characteristics Ikezaki, 1988). of both G. hokouensis and G. japonicus. It had The gecko was collected by the author in one pair of cloacal spurs, like G. hokouensis, and a room of a small shrine near (within 50m) the enlarged tubercles on the back of the body, the seashore. The snout-to-vent length, head width forearms, the crura, and the thighs, like G. japon- head length, and body weight measured in icus. These characteristics coincide with those of life were 63.1, 1.41, 17.9mm, and 6.35g, some geckos recorded from the Goto Islands and Danjo-gunto Islands. Although the published records respectively. The gecko had a regenerated tail. and specimens of more than 1,300 geckos belonging The length of the original and regenerated parts to G. -
Opportunistic Feeding by House-Dwelling Geckos: Does This Make Them More Successful Invaders?
The Herpetological Bulletin 149, 2019: 38-40 SHORT COMMUNICATION https://doi.org/10.33256/hb149.3840 Opportunistic feeding by house-dwelling geckos: does this make them more successful invaders? ROBBIE WETERINGS1* & PREEYAPORN WETERINGS1 1 Cat Drop Foundation, Drachten, Netherlands *Corresponding author e-mail: [email protected] Abstract - Various species of ‘house’ gecko are found in and around buildings, where they can be observed feeding opportunistically on the insects attracted to artificial lights. Most of the species are considered strict insectivores. Nevertheless, there have been several recently published observations of ‘house’ geckos feeding on non-insect food. In order to assess how common this behaviour is among geckos worldwide, we offered an online questionnaire to ecologists and herpetologists. Of the 74 observations received, most reported Hemidactylus frenatus, H. platyurus and Gehyra mutilata feeding on rice, bread, fruits, vegetables, dog food or chocolate cream, taken from tables, plates, and garbage bins. This opportunistic feeding behaviour is much more common than previously thought and is perpetrated by species considered to be highly invasive, possibly contributing to their success as invaders. INTRODUCTION 2. What did the gecko consume? a. Insects or other invertebrates everal gecko species (e.g. Hemidactylus frenatus and b. Fruit or vegetables SGehyra mutilata) are often found in and around houses. c. Rice These, so-called ‘house’ geckos, are very well adapted to d. Bread urban life and are often observed feeding opportunistically e. Eggs on insects attracted to artificial lights at night (Tkaczenko f. Unsure et al., 2014). This provides them an easily accessible food g. Other... source in locations generally lacking predators. -
Tracing the Evolution of Amniote Chromosomes
Chromosoma (2014) 123:201–216 DOI 10.1007/s00412-014-0456-y REVIEW Tracing the evolution of amniote chromosomes Janine E. Deakin & Tariq Ezaz Received: 20 December 2013 /Revised: 3 March 2014 /Accepted: 4 March 2014 /Published online: 25 March 2014 # The Author(s) 2014. This article is published with open access at Springerlink.com Abstract A great deal of diversity in chromosome number birds and non-avian reptiles presents an opportunity to study and arrangement is observed across the amniote phylogeny. chromosome evolution to determine the timing and types of Understanding how this diversity is generated is important for events that shaped the chromosomes of extant amniote spe- determining the role of chromosomal rearrangements in gen- cies. This involves comparing chromosomes of different spe- erating phenotypic variation and speciation. Gaining this un- cies to reconstruct the most likely chromosome arrangement derstanding is achieved by reconstructing the ancestral ge- in a common ancestor. Tracing such events can provided great nome arrangement based on comparisons of genome organi- insight into the evolutionary process and even the role chro- zation of extant species. Ancestral karyotypes for several mosomal rearrangements play in phenotypic evolution and amniote lineages have been reconstructed, mainly from speciation. cross-species chromosome painting data. The availability of Reconstruction of ancestral karyotypes at various positions anchored whole genome sequences for amniote species has along the amniote (reptiles, birds and mammals) phylogenetic increased the evolutionary depth and confidence of ancestral tree has been made possible by the large number of cross- reconstructions from those made solely from chromosome species chromosome painting and gene mapping studies that painting data. -
Independent Evolution of Sex Chromosomes in Eublepharid Geckos, a Lineage with Environmental and Genotypic Sex Determination
life Article Independent Evolution of Sex Chromosomes in Eublepharid Geckos, A Lineage with Environmental and Genotypic Sex Determination Eleonora Pensabene , Lukáš Kratochvíl and Michail Rovatsos * Department of Ecology, Faculty of Science, Charles University, 12844 Prague, Czech Republic; [email protected] (E.P.); [email protected] (L.K.) * Correspondence: [email protected] or [email protected] Received: 19 November 2020; Accepted: 7 December 2020; Published: 10 December 2020 Abstract: Geckos demonstrate a remarkable variability in sex determination systems, but our limited knowledge prohibits accurate conclusions on the evolution of sex determination in this group. Eyelid geckos (Eublepharidae) are of particular interest, as they encompass species with both environmental and genotypic sex determination. We identified for the first time the X-specific gene content in the Yucatán banded gecko, Coleonyx elegans, possessing X1X1X2X2/X1X2Y multiple sex chromosomes by comparative genome coverage analysis between sexes. The X-specific gene content of Coleonyx elegans was revealed to be partially homologous to genomic regions linked to the chicken autosomes 1, 6 and 11. A qPCR-based test was applied to validate a subset of X-specific genes by comparing the difference in gene copy numbers between sexes, and to explore the homology of sex chromosomes across eleven eublepharid, two phyllodactylid and one sphaerodactylid species. Homologous sex chromosomes are shared between Coleonyx elegans and Coleonyx mitratus, two species diverged approximately 34 million years ago, but not with other tested species. As far as we know, the X-specific gene content of Coleonyx elegans / Coleonyx mitratus was never involved in the sex chromosomes of other gecko lineages, indicating that the sex chromosomes in this clade of eublepharid geckos evolved independently. -
Spatial Partitioning Among Geckos at Lambir Hills National Park
One gecko, Two geckos, not few geckos - but many geckos! Spatial partitioning among geckos at Lambir Hills National Park Ruchira Somaweera1, Wayne Hsu2 & Mona Octavia3 1 Department of Zoology, University of Peradeniya, Sri Lanka. 2 Department of Ecology, Evolution, and Environmental Biology, Columbia University, USA. 3 Department of Zoology, University of Malaysia Sarawak, Malaysia. ABSTRACT Four species of sympatric geckos occur in the Lambir Hills National Park headquarters premises. We investigated whether this distribution was facilitated by spatial partitioning among the species. Of the 212 individuals observed in five buildings, there was no significant difference in the distance geckos forage around artificial lights (p = 0.0541). Three of the four species have similar surface preferences. Gekko smithii tends to occur farthest from light sources, and G. monarchus appears restricted to wall surfaces; thus, our results suggest spatial partitioning occurs in multiple ways. INTRODUCTION A mega-hotspot for reptiles, the island of Borneo harbors 289 species of reptiles, of which 29 species are geckos (Gekkonidae) (Das 2006). Over 15 gecko species have been recorded from Lambir Hills National Park (LHNP). Many species have overlapping ranges around the LHNP headquarter premises, attracted to and possibly supported by the abundance of insects around artificial lights at night. Thus, the diverse gecko community provides an opportunity to study inter-specific and intra- specific coexistence and spatial partitioning. The social behavior and spatial partitioning of animals are not only of intrinsic interest, but may also be relevant to our understanding of population dynamics and habitat selection (Stephens & Sutherland 1999). Studies on the social behavior of reptiles have lagged behind those of birds and mammals, reinforcing the traditional view that reptilian social systems are simpler than those of endothermic vertebrates. -
Critically Endangered Island Endemic Or Peripheral Population of A
Diversity and Distributions, (Diversity Distrib.) (2014) 20, 756–772 BIODIVERSITY Critically endangered island endemic or RESEARCH peripheral population of a widespread species? Conservation genetics of Kikuchi’s gecko and the global challenge of protecting peripheral oceanic island endemic vertebrates Cameron D. Siler1,2*, Jamie R. Oaks3, Kerry Cobb2, Hidetoshi Ota4 and Rafe M. Brown2 1Sam Noble Oklahoma Museum of Natural ABSTRACT History & Department of Biology, University Aim To highlight the significant conservation challenge of evaluating peripheral of Oklahoma, Norman, OK 73072-7029, 2 endemic vertebrates in island archipelago systems and to assess empirically the USA, Biodiversity Institute and Department of Ecology and Evolutionary Biology, complexities of approaches to conservation genetic studies across political and biogeographic boundaries. To demonstrate the poignant need for international A Journal of Conservation Biogeography University of Kansas, Lawrence, KS 66045, USA, 3Department of Biology, University of collaboration and coordination when species delimitation problems with high Washington, Seattle, WA 98195, USA, conservation concern involve island endemics with biogeographically peripheral 4Institute of Natural and Environmental ranges. Sciences, and Museum of Nature and Location Southeast Asia, Lanyu Island, Taiwan, and the Philippines. Human Activities, University of Hyogo, Yayoigaoka 6, Sanda, Hyogo 669-1546, Methods Genetic samples were collected and sequenced for one mitochondrial Japan gene and five nuclear loci for species of the Gekko mindorensis-G. kikuchii spe- cies complex in Southeast Asia. We used maximum likelihood and Bayesian phylogenetic methods and coalescent-based species delimitation analyses to esti- mate phylogeographic relationships, construct multilocus haplotype networks and test putative species boundaries. Results Phylogenetic and population genetic analyses suggest that Kikuchi’s Gecko may represent a peripheral population of a widespread species distrib- uted from the northern Philippines to Taiwan. -
(Luperosaurus), Flying Geckos (Ptychozoon) and Their Relationship to the Pan-Asian Genus Gekko ⇑ Rafe M
Molecular Phylogenetics and Evolution 63 (2012) 915–921 Contents lists available at SciVerse ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Short Communication Testing the phylogenetic affinities of Southeast Asia’s rarest geckos: Flap-legged geckos (Luperosaurus), Flying geckos (Ptychozoon) and their relationship to the pan-Asian genus Gekko ⇑ Rafe M. Brown a, , Cameron D. Siler a, Indraneil Das b, Yong Min b a Biodiversity Institute and Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 66045-7561, USA b Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia article info abstract Article history: Some of Southeast Asia’s most poorly known vertebrates include forest lizards that are rarely seen by Received 29 November 2011 field biologists. Arguably the most enigmatic of forest lizards from the Indo Australian archipelago are Revised 30 January 2012 the Flap-legged geckos and the Flying geckos of the genera Luperosaurus and Ptychozoon. As new species Accepted 22 February 2012 have accumulated, several have been noted for their bizarre combination of morphological characteris- Available online 7 March 2012 tics, seemingly intermediate between these genera and the pan-Asian gecko genus Gekko. We used the first multilocus phylogeny for these taxa to estimate their relationships, with particular attention to Keywords: the phylogenetic placement of the morphologically intermediate taxa Ptychozoon rhacophorus, Luperosau- Coastal forest species rus iskandari, and L. gulat. Surprisingly, our results demonstrate that Luperosaurus is more closely related Enigmatic taxa Flap-legged geckos to Lepidodactylus and Pseudogekko than it is to Gekko but that some species currently classified as Lupero- Forest geckos saurus are nested within Gekko.