Why the World's Tallest Waterfall Is Named Angel Falls
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Catalogue of the Amphibians of Venezuela: Illustrated and Annotated Species List, Distribution, and Conservation 1,2César L
Mannophryne vulcano, Male carrying tadpoles. El Ávila (Parque Nacional Guairarepano), Distrito Federal. Photo: Jose Vieira. We want to dedicate this work to some outstanding individuals who encouraged us, directly or indirectly, and are no longer with us. They were colleagues and close friends, and their friendship will remain for years to come. César Molina Rodríguez (1960–2015) Erik Arrieta Márquez (1978–2008) Jose Ayarzagüena Sanz (1952–2011) Saúl Gutiérrez Eljuri (1960–2012) Juan Rivero (1923–2014) Luis Scott (1948–2011) Marco Natera Mumaw (1972–2010) Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 13(1) [Special Section]: 1–198 (e180). Catalogue of the amphibians of Venezuela: Illustrated and annotated species list, distribution, and conservation 1,2César L. Barrio-Amorós, 3,4Fernando J. M. Rojas-Runjaic, and 5J. Celsa Señaris 1Fundación AndígenA, Apartado Postal 210, Mérida, VENEZUELA 2Current address: Doc Frog Expeditions, Uvita de Osa, COSTA RICA 3Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Apartado Postal 1930, Caracas 1010-A, VENEZUELA 4Current address: Pontifícia Universidade Católica do Río Grande do Sul (PUCRS), Laboratório de Sistemática de Vertebrados, Av. Ipiranga 6681, Porto Alegre, RS 90619–900, BRAZIL 5Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, apartado 20632, Caracas 1020, VENEZUELA Abstract.—Presented is an annotated checklist of the amphibians of Venezuela, current as of December 2018. The last comprehensive list (Barrio-Amorós 2009c) included a total of 333 species, while the current catalogue lists 387 species (370 anurans, 10 caecilians, and seven salamanders), including 28 species not yet described or properly identified. Fifty species and four genera are added to the previous list, 25 species are deleted, and 47 experienced nomenclatural changes. -
Canaima National Park and Angel Falls
Venezuela Tours • Canaima National Park & Angel Falls Canaima National Park & Angel Falls 6 nights / 7 days DAY 1: CARACAS A guide will greet you upon arrival and will transfer you to your hotel for two nights’ accommodation. DAY 2: CARACAS Today you will join a full day city tour of Venezuela with a shared guide and transportation included as well as all entrance fees required. The morning starts with a well-planned tour to the city’s major historical sites including Simon Bolivar’s birth place and museum, the cathedral and Sacro Museum, the Consejo Municipal and the Avila Hills for a panoramic view of the city. After lunch you will visit the Quinta Anauco museum, one of the best in the city. DAY 3: CARACAS – PUERTO ORDAZ – CANAIMA NATIONAL PARK A guide will transfer you to the airport in time to check in for and to board your flight to Puerto Ordaz connecting with your flight to Canaima National Park. Upon arrival a guide will greet you and will transfer your Canaima lodge for three nights’ accommodation. After lunch you will embark on a guided excursion to Yuri Falls. Yuri Falls are located some 10km from the Canaima Lagoon by boat. En route the group will stop for a number of fantastic photo opportunities in the unique landscape. Your guide will point out interesting rock formations and other peculiarities found in Canaima. After a short 20 minute navigation you will arrive at a pier where the group will disembark and prepare for a short walk through the jungle. At the falls where you will have some free time for swimming and relaxing before returning to camp for dinner and overnight accommodations. -
Anura: Dendrobatidae: Anomaloglossus) from the Orinoquian Rainforest, Southern Venezuela
TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. Zootaxa 2413: 37–50 (2010) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2010 · Magnolia Press ISSN 1175-5334 (online edition) A new dendrobatid frog (Anura: Dendrobatidae: Anomaloglossus) from the Orinoquian rainforest, southern Venezuela CÉSAR L. BARRIO-AMORÓS1,4, JUAN CARLOS SANTOS2 & OLGA JOVANOVIC3 1,4 Fundación AndígenA, Apartado postal 210, 5101-A Mérida, Venezuela 2University of Texas at Austin, Integrative Biology, 1 University Station C0930 Austin TX 78705, USA 3Division of Evolutionary Biology, Technical University of Braunschweig, Spielmannstr 8, 38106 Braunschweig, Germany 4Corresponding author. E-mail: [email protected]; [email protected] Abstract A new species of Anomaloglossus is described from the Venezuelan Guayana; it is the 21st described species of Anomaloglossus from the Guiana Shield, and the 15th from Venezuela. This species inhabits rainforest on granitic substrate on the northwestern edge of the Guiana Shield (Estado Amazonas, Venezuela). The new species is distinguished from congeners by sexual dimorphism, its unique male color pattern (including two bright orange parotoid marks and two orange paracloacal spots on dark brown background), call characteristics and other morphological features. Though to the new species is known only from the northwestern edge of the Guiana Shield, its distribution may be more extensive, as there are no significant biogeographic barriers isolating the type locality from the granitic lowlands of Venezuela. Key words: Amphibia, Dendrobatidae, Anomaloglossus, Venezuela, Guiana Shield Resumen Se describe una nueva especie de Anomaloglossus de la Guayana venezolana, que es la vigesimoprimera descrita del Escudo Guayanés, y la decimoquinta para Venezuela. -
Anew Species of the Genus Oreophrynella
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Cadernos Espinosanos (E-Journal) Volume 45(6):61-67, 2005 A NEW SPECIES OF THE GENUS OREOPHRYNELLA (ANURA; BUFONIDAE) FROM THE GUIANA HIGHLANDS JOSEFA CELSA SEÑARIS1,2 CARLOS DONASCIMIENTO1,3 OSVALDO VILLARREAL1,4 ABSTRACT Oreophrynella weiassipuensis sp. nov. is described from Wei-Assipu-tepui on the Guyana-Brazil border. The new species is distinguished from other species of the genus by the presence of well developed post-orbital crests, toe webbing, dorsal skin minutely granular with scattered large tubercles, and reddish brown dorsal and ventral coloration. KEYWORDS: Anura, Bufonidae, Oreophrynella, new species, Pantepui, Guiana Shield, Guyana, Brazil. INTRODUCTION was described from the summit of Cerro El Sol (Diego-Aransay and Gorzula, 1987), a tepui which is The bufonids of the genus Oreophrynella are a not part of the Roraima formation. Señaris et al. group of noteworthy small toads, endemic to the (1994) reviewed the Guiana highland bufonids and highlands of the Guiana Region in northeastern South described two additional species, O. nigra from America. Members of this genus are frogs of small Kukenán and Yuruaní tepuis, and O. vasquezi from Ilú- size (< 26 mm SVL), characterized by opposable digits tepui. Finally Señaris (1995) described O. cryptica from of the foot, tuberculate dorsal skin, and direct Auyán-tepui. development (McDiarmid, 1971; McDiarmid and On July 2000 a speleological expedition to Wei- Gorzula, 1989; Señaris et al., 1994). Assipu-tepui, conducted by members of the Italian and The genus was created by Boulenger (1895a, b) Venezuelan speleological societies (Carreño et al., 2002; for the newly described species O. -
Science Snap (#26): Angel Falls, Venezuela
Science Snap (#26): Angel Falls, Venezuela Sorcha McMahon is a third year PhD student in the School of Earth Sciences at the University of Bristol. Sorcha is investigating how strange igneous rocks called carbonatites may have formed, using both natural samples and high-pressure experiments. Canaima National Park. Photo credit: Sorcha McMahon Angel Falls is the world’s highest uninterrupted waterfall in the Canaima National Park, a UNESCO World Heritage site in the Gran Sabana region of Bolívar State, in Venezuela. The waterfall drops from the summit of the largest tepui (table-top mountain) of the Guiana Highlands of South America, Auyantepui, from a height of 979 m. Angel Falls is said to have inspired the setting of the Disney animated film Up(2009) where the location is called Paradise Falls. The nearby Mount Roraima inspired the Scottish author Arthur Conan Doyle to write his novel The Lost World about the discovery of a living prehistoric world full of dinosaurs and primeval plants. The borders of Venezuela, Brazil, and Guyana meet on the top of this tepui, which translates to “house of the gods” in the native tongue of the Pemon, the indigenous people who inhabit the Gran Sabana. Tepuis host a unique array of endemic plant and animal species, with ~1/3 of the plants found nowhere else on the planet. Angel Falls, Venezuela. It is also known as “Kerepakupai Vená” in the original indigenous Pemon language, meaning “waterfall of the deepest place”. Photo credit: Sorcha McMahon The extraordinary topography is part of the Guiana Shield, and began as the Great Plains; an igneous-metamorphic basement formed during the Precambrian as part of the supercontinent Gondwanaland (approx. -
Microvegetation on the Top of Mt. Roraima, Venezuela
Fottea 11(1): 171–186, 2011 171 Microvegetation on the top of Mt. Roraima, Venezuela Jan KA š T O V S K Ý 1*, Karolina Fu č í k o v á 2, Tomáš HAUER 1,3 & Markéta Bo h u n i c k á 1 1Faculty of Science, University of South Bohemia, Branišovská 31, České Budějovice 37005, Czech Republic; *e–mail: [email protected] 2University of Connecticut, Department of Ecology and Evolutionary Biology, 75 North Eagleville Road, Storrs, CT 06269–3043, U.S.A. 3Institute of Botany of the Academy of Sciences, Czech Republic, Dukelská 135, Třeboň 37982, Czech Republic. Abstract: Venezuelan Table Mountains (tepuis) are among world’s most unique ecological systems and have been shown to have high incidence of endemics. The top of Roraima, the highest Venezuelan tepui, represents an isolated enclave of species without any contact with the surrounding landscape. Daily precipitation enables algae and cyanobacteria to cover the otherwise bare substrate surfaces on the summit in form of a black biofilm. In the present study, 139 samples collected over 4 years from various biotopes (vertical and horizontal moist rock walls, small rock pools, peat bogs, and small streams and waterfalls) were collected and examined for algal diversity and species composition. A very diverse algal flora was recognized in the habitats of the top of Mt. Roraima; 96 Bacillariophyceae, 44 Cyanobacteria including two species new to science, 37 Desmidiales, 5 Zygnematales, 6 Chlorophyta, 1 Klebsormidiales, 1 Rhodophyta, 1 Dinophyta, and 1 Euglenophyta were identified. Crucial part of the total biomass consisted of Cyanobacteria; other significantly represented groups were Zygnematales and Desmidiales. -
Shrouds of Mystery
Story Giles Foden Photographs Philip Lee Harvey SHROUDS OF MYSTERY Venezuela’s bizarre antediluvian landscape hides many secrets, tempting fearless adventurers over the years with the possibility of riches and even enlightenment The waterfall seemed to fall through eternity. Sifted in the sieve of itself – hovering in the air, staggering but never stopping – it appeared to be part of a world in which time had slowed down, or somehow been canceled altogether. There are verifiable reasons to explain how this impression could form in my head. Water from above was decelerating as it hit water below, water that had itself already slowed down – and so on and on. The phenomenon that is Angel Falls comes down in some of the world’s oldest natural formations: the table- like “tepui” mountains that rise, suddenly and inconceivably, from the Gran Sabana. This vast area of grassland and jungle is the heartland of Venezuela. The tepuis themselves are remnant geological features of Gondwanaland, Myth and legend surround a supercontinent that existed some 180 million years ago, when Africa and South America were conjoined. It was the American pilot Jimmie no wonder I felt out of time. Angel, after whom Angel Falls in Venezuela is Silent and amazed, perched on a rocky outcrop opposite the falls, I watched the cascade’s foaming sections, named. He was born streaming and checking in the roaring flow. At 3,212 feet high, Angel Falls is the world’s tallest waterfall, a “vertical in Missouri in 1899 river” that has mesmerized many before me. With a flash of insight, I realized its movement exemplified humanity’s never-ending Auyántepui, the mountain from which it descends, reads like dance between holism and separation; everything is connected, something out of a novel. -
Reportaje Central Main Article
reportaje central main article 28 www.facesdigital.com La Cueva Charles Brewer Uno de los descubrimientos más importantes de los últimos tiempos según se informa en las publicaciones internacionales. Un regalo de la naturaleza, de dimensiones difíciles de imaginar, encontrado por casualidad, y que hoy es reconocido como la cueva de cuarcita más grande del mundo. International publications have considered it one of the most important discoveries of recent times. A gift of nature, of dimensions which are hard to imagine, found by chance, and that today is recognized as the greatest quartzite cave in the world. Por/By: Alfredo A. Chacón, Javier Mesa y Federico Mayoral Foto/Photo: Marek Audy, Charles Brewer-Carías y Javier Mesa 29 reportaje central main article Ninguno de los exploradores que es- Para revisar los antecedentes al des- tuvo en la Guayana venezolana an- cubrimiento de la extraordinaria tes de 1930 informó haber visto una Cueva Charles Brewer en la cum- of the explor- montaña tan extensa como la Isla bre de ese macizo montañoso que ers who were de Margarita (en Venezuela) o la Isla ahora se llama Chimantá, es preciso in the Vene- Gran Canaria (en España), hasta que remontarnos a enero de 1962, cuan- Nonezuelan Guayana before 1930 informed el explorador Holdridge publicó en do Charles Brewer-Carías regresó to have seen such an extensive mountain N as Margarita Island (in Venezuela) or the 1931 la fotografía de un macizo mon- de dirigir una expedición en la que tañoso de más de 2.000 m. de altura había ido a buscar los restos de la Gran Canaria Island (in Spain), until 1931 al que llamó “Metcalf Mountains”. -
Two New Endangered Species of Anomaloglossus (Anura: Aromobatidae) from Roraima State, Northern Brazil
Zootaxa 3926 (2): 191–210 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3926.2.2 http://zoobank.org/urn:lsid:zoobank.org:pub:BCA3901A-DF07-4FAF-8386-C24649557313 Two new endangered species of Anomaloglossus (Anura: Aromobatidae) from Roraima State, northern Brazil ANTOINE FOUQUET1,2,8, SERGIO MARQUES SOUZA2, PEDRO M. SALES NUNES2,3, PHILIPPE J. R. KOK4,5, FELIPE FRANCO CURCIO2,6, CELSO MORATO DE CARVALHO7, TARAN GRANT2 & MIGUEL TREFAUT RODRIGUES2 1CNRS Guyane USR3456, Immeuble Le Relais, 2 Avenue Gustave Charlery, 97300, Cayenne, French Guiana 2Universidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, Caixa Postal 11.461,CEP 05508-090, São Paulo, SP, Brazil 3Universidade Federal de Pernambuco, Centro de Ciências Biológicas, Departamento de Zoologia, Av. Professor Moraes Rego, s/n. Cidade Universitária CEP 50670-901, Recife, PE, Brazil 4Biology Department, Amphibian Evolution Lab, Vrije Universiteit Brussel, 2 Pleinlaan, B- 1050 Brussels, Belgium 5Department of Recent Vertebrates, Royal Belgian Institute of Natural Sciences, 29 rue Vautier, B- 1000 Brussels, Belgium 6Universidade Federal de Mato Grosso, Instituto de Biociências, Departamento de Biologia e Zoologia, CEP 78060-900, Cuiaba MT, Brazil 7INPA Núcleo de Pesquisas de Roraima (INPA/NPRR), Rua Coronel Pinto 315 – Centro, 69301-970, Boa Vista, RR, Brazil 8Corresponding author. E-mail: [email protected] Abstract We describe two new species of Anomaloglossus from Roraima State, Brazil, that are likely endemic to single mountains currently isolated among lowland forest and savanna ecosystems. The first species, Anomaloglossus tepequem sp. -
Scienze Geologiche
Alma Mater Studiorum – Università di Bologna DOTTORATO DI RICERCA IN SCIENZE GEOLOGICHE Ciclo XXVI Settore Concorsuale di afferenza: 04/A3 Settore Scientifico disciplinare: GEO/04 SPELEOGENESIS AND SECONDARY CAVE MINERALS IN QUARTZ‐SANDSTONE AND QUARTZITE ENVIRONMENT Presentata da: Francesco Sauro Coordinatore Dottorato Relatore Prof. Roberto Barbieri Prof. Jo De Waele Correlatore Prof. Leonardo Piccini Esame finale anno 2014 ... and the moon appeared as on a dead world of sole geology. You really had up there, the sense of the earth and rock as living bodies ... Seemed to be dreaming in terms of mineral. ... e apparve la luna come su un mondo morto di sola geologia. Si aveva veramente lassù, il senso della terra e della roccia come corpi viventi... Pareva di sognare in termini di minerale. Alfonso Vinci, Auyan Tepui, 1949 SPELEOGENESIS AND SECONDARY CAVE MINERALS IN QUARTZ-SANDSTONE AND QUARTZITE ENVIRONMENT ABSTRACT 9 RIASSUNTO 11 1. INTRODUCTION 13 1.1 Quartzite caves: beyond the quartz insolubility paradox 13 1.2 The mechanisms of quartz and silica weathering 14 1.2.1 Forms of quartz and silica 14 1.2.2 Characteristics of the silica-water system 14 1.2.3 Influence of inorganic and organic cations 16 1.2.4 Influence of organic compounds and microbial activity 17 1.3 Quartzite and quartz-sandstone weathering 18 1.3.1 Orthoquartzite and Metaquartzite 18 1.3.2 Quartz weathering landscapes and caves of the World 19 1.3.3 The Gran Sabana: the World’s finest epigenic quartzite Karst 22 1.3.4 Corona Sa Craba: an example of hypogenic speleogenesis in quartzites 23 1.4 Objectives and outline of the thesis 26 2. -
31 Day Expedition in Venezuela. Angel Falls and Ghost Cave
t: 01392 660056 e: [email protected] Venezuela Angel Falls and Ghost Cave expedition Experience the diversity of little known Venezuela in this epic month-long expedition as we travel to some of the most remote regions of the country. We embark on a breath taking 11 day trek & 3 days in canoes, as we journey to the edge of the explored world. We’ll visit the awe-inspiring Angel Falls and trek to the Cave of Ghosts - a truly spectacular cave hidden deep in the jungle that was only discovered in the last decade. Our journey continues as we spend time in a working ranch followed by a 4 day community project culminating in some well-earned R & R on the Caribbean Coast. Warning: this expedition is for adventurous Recommended itinerary: Culture shock rating: Days 11----3:3: Arrive Caracas transfer to Colonia Tovar. Upon arrival at Caracas we will be met Physical rating: and transferred to the cloud forest town of Colonia Tovar. Over the next two days we will be harvesting, preparing and packaging the food that we will need whilst trekking. With the help of our guide we will be taught how to harvest the right vegetables and prepare them so they are made into dehydrated food. The process takes a while but when we are on the trek enjoying our dinner that we prepared ourselves, the taste will be very rewarding. Day 4: Drive from Colonia Tovar to Ciudad Bolivar. Followed by a tour of this historical city. Day 5: Fly and trek to Uruyen Canyon. -
Economic Incentives Vital for Development of the Guiana Shield
Economic Incentives Vital for Development of the Guiana Shield By Dr. Odeen Ishmael, Senior Research Fellow at the Council on Hemispheric Affairs The fourth international congress on the biodiversity of the Guiana Shield, sponsored by the International Biodiversity Society of the Guiana Shield (IBG) in conjunction with the Guyana government, was held during August 8-12 in Georgetown, Guyana.i In his address to the forum on April 8, Guyana’s President David Granger proposed a three-pronged approach to be adopted for the effective protection and preservation of the Guiana Shield. That approach, he said, must include the establishment of a scientific research institute, the setting up of strong mechanisms for data and information sharing, and adequate investment and funding.ii President Granger said that the scientific community, governments, non- governmental organizations and communities must forge partnerships to protect the Shield’s biodiversity, while allowing states to leverage its high endemicity, cultural diversity and intact ecosystems for inclusive growth and secure futures.iii The Guiana Shield The Guiana Shield is a 1.7 billion-year-old Precambrian geological formation in northeast South America.iv The higher elevations are the Guiana Highlands, with flat- topped mountains and are the source of some of the world's most spectacular waterfalls such as Angel Falls and Kaieteur Falls. The Shield underlies Venezuela, Guyana, Suriname, French Guiana (Guyane) as well as parts of Brazil and Colombia. It has one of the highest measures of biodiversity in the world, and is the natural habitat of numerous endemic species of mammals, fresh water fish, amphibians, reptiles, birds, and insects.v vi It also sustains one of the largest blocks of primary tropical rain forest worldwide as well as a region marked by very high biodiversity levels.