DOCSLIB.ORG

Archipiélago De Revillagigedo

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Archipiélago De Revillagigedo LATIN AMERICA / CARIBBEAN ARCHIPIÉLAGO DE REVILLAGIGEDO MEXICO Manta birostris in San Benedicto - © IUCN German Soler Mexico - Archipiélago de Revillagigedo WORLD HERITAGE NOMINATION – IUCN TECHNICAL EVALUATION ARCHIPIÉLAGO DE REVILLAGIGEDO (MEXICO) – ID 1510 IUCN RECOMMENDATION TO WORLD HERITAGE COMMITTEE: To inscribe the property under natural criteria. Key paragraphs of Operational Guidelines: Paragraph 77: Nominated property meets World Heritage criteria (vii), (ix) and (x). Paragraph 78: Nominated property meets integrity and protection and management requirements. 1. DOCUMENTATION (2014). Evaluación de la capacidad de carga para buceo en la Reserva de la Biosfera Archipiélago de a) Date nomination received by IUCN: 16 March Revillagigedo. Informe Final para la Direción de la 2015 Reserva de la Biosiera, CONANP. La Paz, B.C.S. 83 pp. Martínez-Gomez, J. E., & Jacobsen, J.K. (2004). b) Additional information officially requested from The conservation status of Townsend's shearwater and provided by the State Party: A progress report Puffinus auricularis auricularis. Biological Conservation was sent to the State Party on 16 December 2015 116(1): 35-47. Spalding, M.D., Fox, H.E., Allen, G.R., following the IUCN World Heritage Panel meeting. The Davidson, N., Ferdaña, Z.A., Finlayson, M., Halpern, letter reported on progress with the evaluation process B.S., Jorge, M.A., Lombana, A., Lourie, S.A., Martin, and sought further information in a number of areas K.D., McManus, E., Molnar, J., Recchia, C.A. & including the State Party’s willingness to extend the Robertson, J. (2007). Marine ecoregions of the world: marine no-take zone up to 12 nautical miles (nm) a bioregionalization of coastal and shelf areas. offshore from the islands to correspond with the outer Bioscience 57(7): 573-583. Bohrson W A, Reid M R, boundaries of the nominated property; additional 1997. Genesis of silicic peralkaline volcanic rocks in an information on deep sea biodiversity and ecosystems ocean island setting by crustal melting and open- within the nominated property and a comparative system processes: Socorro Island, Mexico. J Petr, 38: analysis of their values; and clarification on the 1137-1166. Bryan W B, 1976. A basalt - pantellerite numbers of endemic and threatened species within the association from Isla Socorro, Islas Revillagigedo, property. The information in response was received Mexico. In: Aoki H, Iizuka S (eds), {Volcanoes and from the State Party on 26 February 2016. Tectonosphere}, Tokyo: Tokai Univ Press, p 75-91. Luhr J F, Kimberly P G, Siebert L, Aranda-Gomez J J, c) Additional literature consulted: Various sources Housh T B, Kysar Mattietti G, 2006. Quaternary including: Critical Ecosystem Partnership Fund (CEPF) volcanic rocks: insights from the MEXPET petrological 2015. Biodiversity hotspots: Mesoamerica. and geochemical database. In: Siebe S, Macias J-L, Downloaded from Aguirre-Diaz G J (eds) Neogone-Quaternary http://www.cepf.net/resources/hotspots, accessed in continental margin volcanism: a perspective from October 2015. Dutton, P.H., Jensen, M.P., Frey, A., Mexico, {Geol Soc Amer Spec Pap}, 402: 1-44. Lacasella, E., Balazs, G.H., Zárate, P., Chassin-Noria, O., Sarti- Martinez, A.L. and Velez, E. 2014. d) Consultations: 10 desk reviews received. The Population structure and phylogeography reveal mission also met with representatives of the State pathways of colonization by a migratory marine reptile Party of Mexico; senior officials and staff of Mexico’s (Chelonia mydas) in the central and eastern Pacific. protected area authority: Comisionado Nacional de Ecol. Evo. (22):4317-31. Hillary, A., Kokkonen, M. & Áreas Naturales Protegidas, (CONANP); and the Max, L. (2002). Proceedings of the World Heritage Federal Attorney for Environmental Protection Marine Biodiversity Workshop. Hanoi, Viet Nam. (Procuraduría Federal de Protección al Ambiente - Ketchum, J.T. and Bonilla, H.R. 2001. Taxonomía y PROFEPA). Meetings and interaction also took place distribución de los corales hermatípicos (Scleractinia) with various NGOs, Universities, Conservation del Archipiélago de Revillagigedo, México. Revista de Foundations and Institutes including Grupo de Biologia Tropical, 49(3): 803–848. Wanless, R.M., Ecología y Conservación de Islas (GECI); Instituto del Aguirre-muñoz, A., Angel, A., Jacobsen, J.K., Keitt, ciencias del mar y limnologia (UNAM); Pelagios B.S. and McCann, J. 2009. Birds of Clarion Island, Kakunjá, A.C.; Universidad de Guadalajara; Fondo Revillagigedo Archipelago, Mexico. The Wilson Mexicano para la Conservación de la Naturaleza Journal of Ornithology, 121(4): 745–751. Wilkenson, (FMCN); and the WWF Marine Programme La Paz. T., Wiken, E., Bezaury-Creel, J., Hourigan, T., The mission also consulted with military officials from Argardy, T., Herrmann, H., Janishevski, L., Madden, the Mexican Navy including from the Socorro Naval C., Morgan, L. and Padilla, M. 2009. Marine Base. Ecoregions of North America. Jehl Jr, J. R., & Parkes, K.C. (1982). The status of the avifauna of the e) Field Visit: German Soler and Wendy Strahm, 3-13 Revillagigedo Islands, Mexico. Wilson Bulletin 94(1):1- November, 2015 19. Reyes Bonilla, H., Ketchum Mejia, J. T. , Cupul Magana, A. L & Alvarez del Castillo Cirdenas, P. A. f) Date of IUCN approval of this report: April 2016 IUCN Evaluation Report – May 2016 83 Mexico - Archipiélago de Revillagigedo 2. SUMMARY OF NATURAL VALUES the Tropical Pacific Ocean and the islands are recognised as important stepping-stones and stop The nominated property Archipiélago de Revillagigedo overs for migratory species. is located in the eastern Pacific Ocean inside the Exclusive Economic Zone of Mexico, some 390 km The marine ecosystems of the archipelago are known southwest of the southern tip of the Baja California to be largely undisturbed and harbour abundant Peninsula, and 720 to 970 kms west of the Mexican populations of sharks, rays, and large pelagic fish that mainland. Archipiélago de Revillagigedo is a serial attract recreational divers from around the world. The nomination made up of four remote islands and their surrounding waters host some of the largest surrounding waters: Isla San Benedicto, Isla Socorro, aggregations of pelagic fauna in the world such as Isla Roca Partida and Isla Clarión. The nominated area manta rays, tunas, turtles, whales and sharks. For covers some 636,684 ha and includes a marine millennia the archipelago has been a key breeding protected area extending 12 nm around each of the ground for the Humpback Whale (Megaptera islands. A very large rectangular buffer zone of novaeangliae - LC), and may host a separate sub- 14,186,420 ha surrounds all four nominated population from mainland Mexico. One of the most components. Ocean depths within the buffer zone of outstanding aspects of the property are the Giant the nominated property reach 3,700 m, particularly to Manta Rays (Manta birostris - VU) which aggregate the west of Isla Roca Partida, and to the west and around the islands. These animals exhibit behaviour south of Isla Clarión. Due to their volcanic origin, which includes close up interest in divers that is depths around the islands increase abruptly at reported nowhere else in the world. Furthermore, the distances of between 10-12 kms from the island seascape has sheer drops in crystal clear water and shorelines. Archipiélago de Revillagigedo is part of a encompasses abyssal plains with depths down to submarine mountain range with the four islands 3,700 m all contributing to underwater scenes of great representing the peaks of volcanoes emerging above beauty. sea level. Apart from two small naval bases, the islands are uninhabited. Due to its geographic isolation, the Archipélago de Revillagigedo supports functional species The island landscape of the nominated property is assemblages with a high level of endemism. Following striking with imposing cliffs, coastlines and volcanos, a request for additional information on the endemic some of them very active. The highest volcano in and threatened species found within the nominated Socorro rises 1,050 m above sea level and is very property, the State Party provided an updated list of 61 active with hydrothermal vents reaching the surface to endemic species. However, it is clear that there are produce clouds from the boiling waters. The gaps in biodiversity knowledge, for instance in deep Archipélago de Revillagigedo was declared a Natural sea areas, and species conservation assessments are Protected Area and Mexican Biosphere Reserve in still needed for plants and invertebrates. 1994. The reserve was also designated as a Ramsar wetland of international importance in 2004. Practically all of the terrestrial breeding birds on the islands are endemic (4 endemic species with 1 Extinct Isla Socorro, the largest and highest of the four in the Wild); and 11 endemic subspecies, 2 Extinct) islands, is a shield volcano, reported as the only silicic with only 2 or 3 recent bird introductions. Four endemic peralkaline volcanic island in the Pacific Ocean. The species of reptiles including 2 lizards and 2 snakes, island is still volcanically active with the most recent and 9 invertebrates (with potentially many more once activity recorded in 1993. On Isla San Benedicto, the further studies are undertaken) have been recorded on Barcena volcano erupted in 1948 and 1952, denuding the islands. It is noted that the Archipiélago de the island of all flora and fauna. Roca Partida is the Revillagigedo exhibits the highest terrestrial endemism smallest of the islands and also the crest of a of any of the Mexican islands. Unique evolutionary submarine stratovolcano. Isla Clarión, the western strategies have developed, such as that of the most of the islands in the group, was formed by Burrowing Owl (Athene cunicularia - LC), which after volcanic eruptions during the Miocene and older 200,000 years of isolation has adapted to survive with Eocene. The Clarion Fracture Zone was named for this no terrestrial mammal prey. Revillagigedo is also island, and it is the first sub-aerial expression of the regionally and globally important for seabirds with 46 fracture zone as it approaches the Mexican mainland.
Load more

Recommended publications
  • Preliminary Report Tropical Storm Bud 13 - 17 June 2000
    Preliminary Report Tropical Storm Bud 13 - 17 June 2000 Jack Beven National Hurricane Center 21 July 2000 a. Synoptic history The origins of Bud can be traced to a tropical wave that emerged from the coast of Africa on 22 May. The wave generated little convection as it moved across the Atlantic and Caribbean. The wave moved into the eastern Pacific on 6 June, but showed few signs of organization until 11 June when a broad low pressure area formed a few hundred miles southwest of Acapulco, Mexico. The initial Dvorak intensity estimates were made that day. Further development was slow, as the low exhibited multiple centers for much of 11-12 June. As one center emerged as dominant, the system became a tropical depression near 0600 UTC 13 June about 370 n mi south-southwest of Manzanillo, Mexico (Table 1). The depression became Tropical Storm Bud six hours later as it moved northwestward. Bud reached a peak intensity of 45 kt early on 14 June while turning north-northwestward. The peak intensity was maintained for 12 hr, followed by slow weakening due to a combination of increasing vertical shear and cooler sea surface temperatures. Bud passed just northeast of Socorro Island on 15 June as a 40 kt tropical storm. It weakened to a depression on 16 June as it slowed to an erratic drift about 70 n mi north of Socorro Island. Bud dissipated as a tropical cyclone on 17 June about 90 n mi north-northeast of Socorro Island; however, the remnant broad low persisted until 19 June.
    [Show full text]
  • Whale Shark Rhincodon Typus Populations Along the West Coast of the Gulf of California and Implications for Management
    Vol. 18: 115–128, 2012 ENDANGERED SPECIES RESEARCH Published online August 16 doi: 10.3354/esr00437 Endang Species Res Whale shark Rhincodon typus populations along the west coast of the Gulf of California and implications for management Dení Ramírez-Macías1,2,*, Abraham Vázquez-Haikin3, Ricardo Vázquez-Juárez1 1Centro de Investigaciones Biológicas del Noroeste, Mar Bermejo 195, Col. Playa Palo de Santa Rita, La Paz, Baja California Sur 23096, Mexico 2Tiburón Ballena México de Conciencia México, Manatí 4802, Col. Esperanza III, La Paz, Baja California Sur 23090, Mexico 3Asociación de Pesca Deportiva y Ecoturismo de Bahía de los Ángeles, Domicilio conocido Bahía de los Ángeles, Baja California 22980, Mexico ABSTRACT: We used photo-identification data collected from 2003 through 2009 to estimate pop- ulation structure, site fidelity, abundance, and movements of this species along the west coast of the Gulf of California to make recommendations for effective conservation and management. Of 251 whale sharks identified from 1784 photographs, 129 sharks were identified in Bahía de Los Ángeles and 125 in Bahía de La Paz. Only juveniles (mostly small) were found in these 2 bays. At Isla Espíritu Santo, we identified adult females; at Gorda Banks we identified 15 pregnant females. High re-sighting rates within and across years provided evidence of site fidelity among juvenile sharks in the 2 bays. Though the juveniles were not permanent residents, they used the areas regularly from year to year. A proportion of the juveniles spent days to a month or more in the coastal waters of the 2 bays before leaving, and periods of over a month outside the study areas before entering the bays again.
    [Show full text]
  • Teacher's Guide
    The World Map / Selected Features of Political Geography Map No. 64 ISBN: 978-2-89157-186-9 PRODUCT NO.: 400 9288 Washable: We strongly recommend the use of Crayola water-soluble markers. Bands and hooks 122 cm × 94 cm / 48 in × 37 in Other markers may damage your maps. 120° 90° 60° T 9090° ° E S Bellingshausen E A 150° S Canada and the World W Sea SOUTH ANTARCTIC I A N F E D E R T ARCTIC SHETLAND ISLANDS S S A T I O R U N Amundsen AT Yenisei ALEXANDER L a 120° A N n Sea N e ISLAND T 30° L IC The Base Map L e n O a Tiksi C THURSTON E A ISLAND N 70° Khatanga N e n l Salekhard Weddell rc ia i 60° C rth L id c swo and Sea r ti Ob Ell e c Map No. 64 A r Laptev Ronne n im 180° N A t ta n A an Ice Shelf r E ri Sea c A e t C ib THE WORLD ic A • S Contours and outlines are O l C N a NEW SIBERIAN ISLANDS BERKNER i Pevek t a Kara 70° r C e c T I n p A e S [RUSSIAN FEDERATION] a l F ri Sea ISLAND e R I C O r C C selected features of political geography 150° la T 80° A scale: 1 / 40 000 000 scale: 1 / 40 000 000 o I P P Coats Land C WRANGEL 0° Be N O ring Str ISLAND N 0 1 000 km 0 1 000 km carefully stylized to capture ait O V C A A Y A M L Y 80 [RUSSIAN FEDERATION] Z E 90° 100° 110 ° 120° 130° 140° 150° 160° 170° 180° 170° 160° 150° 140° 130° 120° 110 ° 100° 90° 80° 70° 60° 50° 40° 30° 20° 10° 0° 10° 20° 30° 40° 50° 60° 70° 80° ° E Arkhangelsk Queen Maud A Land N ARCTIC OCEAN Chukchi Barents N Ross Amundsen-Scott azimuthal equidistant projection azimuthal equidistant projection A Sea Sea 80 E Sea [U.S.A.] ° C ALASKA 70° 80° O the essentials.
    [Show full text]
  • Tinamiformes – Falconiformes
    LIST OF THE 2,008 BIRD SPECIES (WITH SCIENTIFIC AND ENGLISH NAMES) KNOWN FROM THE A.O.U. CHECK-LIST AREA. Notes: "(A)" = accidental/casualin A.O.U. area; "(H)" -- recordedin A.O.U. area only from Hawaii; "(I)" = introducedinto A.O.U. area; "(N)" = has not bred in A.O.U. area but occursregularly as nonbreedingvisitor; "?" precedingname = extinct. TINAMIFORMES TINAMIDAE Tinamus major Great Tinamou. Nothocercusbonapartei Highland Tinamou. Crypturellus soui Little Tinamou. Crypturelluscinnamomeus Thicket Tinamou. Crypturellusboucardi Slaty-breastedTinamou. Crypturellus kerriae Choco Tinamou. GAVIIFORMES GAVIIDAE Gavia stellata Red-throated Loon. Gavia arctica Arctic Loon. Gavia pacifica Pacific Loon. Gavia immer Common Loon. Gavia adamsii Yellow-billed Loon. PODICIPEDIFORMES PODICIPEDIDAE Tachybaptusdominicus Least Grebe. Podilymbuspodiceps Pied-billed Grebe. ?Podilymbusgigas Atitlan Grebe. Podicepsauritus Horned Grebe. Podicepsgrisegena Red-neckedGrebe. Podicepsnigricollis Eared Grebe. Aechmophorusoccidentalis Western Grebe. Aechmophorusclarkii Clark's Grebe. PROCELLARIIFORMES DIOMEDEIDAE Thalassarchechlororhynchos Yellow-nosed Albatross. (A) Thalassarchecauta Shy Albatross.(A) Thalassarchemelanophris Black-browed Albatross. (A) Phoebetriapalpebrata Light-mantled Albatross. (A) Diomedea exulans WanderingAlbatross. (A) Phoebastriaimmutabilis Laysan Albatross. Phoebastrianigripes Black-lootedAlbatross. Phoebastriaalbatrus Short-tailedAlbatross. (N) PROCELLARIIDAE Fulmarus glacialis Northern Fulmar. Pterodroma neglecta KermadecPetrel. (A) Pterodroma
    [Show full text]
  • Of Extinct Rebuilding the Socorro Dove Population by Peter Shannon, Rio Grande Zoo Curator of Birds
    B BIO VIEW Curator Notes From the Brink of Extinct Rebuilding the Socorro Dove Population by Peter Shannon, Rio Grande Zoo Curator of Birds In terms of conservation efforts, the Rio Grande Zoo is a rare breed in its own right, using its expertise to preserve and breed species whose numbers have dwindled to almost nothing both in the wild and in captivity. Recently, we took charge of a little over one-tenth of the entire world’s population of Socorro doves which have been officially extinct in the wild since 1978 and are now represented by only 100 genetically pure captive individuals that have been carefully preserved in European institutions. Of these 100 unique birds, 13 of them are now here at RGZ, making us the only holding facility in North America for this species and the beginning of this continent’s population for them. After spending a month in quarantine, the birds arrived safe and sound on November 18 from the Edinburgh and Paignton Zoos in England. Other doves have been kept in private aviaries in California, but have been hybridized with the closely related mourning dove, so are not genetically pure. History and Background Socorro doves were once common on Socorro Island, the largest of the four islands making up the Revillagigedo Archipelago in the East- ern Pacific ocean about 430 miles due west of Manzanillo, Mexico and 290 miles south of the tip of Baja, California. Although the doves were first described by 19th century American naturalist Andrew Jackson Grayson, virtually nothing is known about their breeding behavior in the wild.
    [Show full text]
  • New Records for GASTROPODA Class of Species Found in the Rocky Intertidal Zone of the Marine Priority Region 32, Guerrero, Mexico
    Open Journal of Marine Science, 2014, 4, 221-237 Published Online July 2014 in SciRes. http://www.scirp.org/journal/ojms http://dx.doi.org/10.4236/ojms.2014.43021 New Records for GASTROPODA Class of Species Found in the Rocky Intertidal Zone of the Marine Priority Region 32, Guerrero, Mexico Carmina Torreblanca-Ramírez1, Rafael Flores-Garza2, Jesús Emilio Michel-Morfin3, José Luis Rosas-Acevedo1, Pedro Flores-Rodríguez2, Sergio García-Ibáñez2 1Unidad de Ciencias de Desarrollo Regional, Universidad Autónoma de Guerrero, Acapulco, Mexico 2Laboratorio de Ecología Costera y Sustentabilidad, Unidad Académica de Ecología Marina, Universidad Autónoma de Guerrero, Acapulco, Mexico 3Departamento de Estudios para el Desarrollo Sustentable de Zonas Costeras, Universidad de Guadalajara, Melaque, Mexico Email: [email protected], [email protected], [email protected] Received 15 May 2014; revised 22 June 2014; accepted 3 July 2014 Copyright © 2014 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract The GASTROPODA class, one of the best known marine environments, is formed by a large number of species and the shape of their shell structure varies greatly. These mollusks are distributed from the intertidal zone all the way to the abyssal zone, and there are also swimming and floating species. This research was conducted at seven sites, located in the Marina Priority Region 32 (MPR 32), located in the State of Guerrero, Mexico. The aim of this report is to document the scope of the geographic distribution of the 34 species of GASTROPODA class.
    [Show full text]
  • Final Corals Supplemental Information Report
    Supplemental Information Report on Status Review Report And Draft Management Report For 82 Coral Candidate Species November 2012 Southeast and Pacific Islands Regional Offices National Marine Fisheries Service National Oceanic and Atmospheric Administration Department of Commerce Table of Contents INTRODUCTION ............................................................................................................................................. 1 Background ............................................................................................................................................... 1 Methods .................................................................................................................................................... 1 Purpose ..................................................................................................................................................... 2 MISCELLANEOUS COMMENTS RECEIVED ...................................................................................................... 3 SRR EXECUTIVE SUMMARY ........................................................................................................................... 4 1. Introduction ........................................................................................................................................... 4 2. General Background on Corals and Coral Reefs .................................................................................... 4 2.1 Taxonomy & Distribution .............................................................................................................
    [Show full text]
  • Ii \ T MEXICAN GRASSES in the UNITED STATES NATIONAL
    ■ . ~+j-,r?7-w- - i i - . \ t MEXICAN GRASSES IN THE UNITED STATES NATIONAL HERBARIUM. By A. S, Hitchcock INTRODUCTION. The following list of grasses, based entirely upon specimens in the United States National Herbarium, is a preliminary paper, in which the scattered data upon Mexican grasses have been brought together and arranged in a convenient form. The species included have been accepted, for the most part, in their traditional sense. It has been impracticable to examine the types of many of the earlier described species since these specimens are located in European herbaria. For this reason the synonymy has been confined mostly to those names that could be fixed by an examination of American types, or concerning the application of which there was little doubt. The largest number of unidentified names are found in Fournier's work on Mexican grasses.1 This results from the incomplete or unsatis- factory descriptions and from the fact that the specimens cited under a given species either may not agree with the diagnosis, or may belong to two or more species, at least in different herbaria. An examination of the original specimens will undoubtedly lead to the identification of the greater part of these names. There are several specimens that have been omitted from the list because they have not been identified and are apparently unde- scribed species. They belong to genera, however, that are much in need of critical revision and further study of them is deferred for the present. In subsequent articles it is hoped to work out the classifi- cation of the tropical American grasses upon a type basis KEY TO THE GENEBA.
    [Show full text]
  • FINAL DRAFT Technical Summary IPCC SR Ocean and Cryosphere
    FINAL DRAFT Technical Summary IPCC SR Ocean and Cryosphere Technical Summary Editorial Team): Hans-Otto Pörtner (Germany), Debra Roberts (South Africa), Valerie Masson-Delmotte (France), Panmao Zhai (China), Elvira Poloczanska (UK/Australia), Katja Mintenbeck (Germany), Melinda Tignor (USA), Jan Petzold (Germany), Nora Weyer (Germany), Andrew Okem (Nigeria), Marlies Craig (South Africa), Maike Nicolai (Germany), Andrés Alegría (Honduras), Stefanie Langsdorf (Germany), Bard Rama (Kosovo), Anka Freund (Germany) Authors: Amro Abd-Elgawad (Egypt), Nerilie Abram (Australia), Carolina Adler (Switzerland/Australia), Andrés Alegría (Honduras), Javier Arístegui (Spain), Nathaniel L. Bindoff (Australia), Laurens Bouwer (Netherlands), Bolívar Cáceres (Ecuador), Rongshuo Cai (China), Sandra Cassotta (Denmark), Lijing Cheng (China), So-Min Cheong (Republic of Korea), William W. L. Cheung (Canada), Maria Paz Chidichimo (Argentina), Miguel Cifuentes-Jara (Costa Rica), Matthew Collins (UK), Susan Crate (USA), Rob Deconto (USA), Chris Derksen (Canada), Alexey Ekaykin (Russian Federation), Hiroyuki Enomoto (Japan), Thomas Frölicher (Switzerland), Matthias Garschagen (Germany), Jean-Pierre Gattuso (France), Tuhin Ghosh (India), Bruce Glavovic (New Zealand), Nicolas Gruber (Switzerland), Stephan Gruber (Canada/Germany), Valeria A. Guinder (Argentina), Robert Hallberg (USA), Sherilee Harper (Canada), John Hay (Cook Islands), Nathalie Hilmi (France), Jochen Hinkel (Germany), Yukiko Hirabayashi (Japan), Regine Hock (USA), Elisabeth Holland (Fiji), Anne Hollowed
    [Show full text]
  • Aqua Safari and Living Underwater, Cozumel +
    The Private, Exclusive Guide for Serious Divers June 2015 Vol. 30, No. 6 Aqua Safari and Living Underwater, Cozumel Two different dive operators, two different views IN THIS ISSUE: Aqua Safari and Living These days, I get many reader queries about two dive Underwater, Cozumel . 1. destinations in particular -- Raja Ampat and Cozumel. While we periodically cover Raja Ampat, it has been a Your Fellow Divers Need Your while since we’ve written about Cozumel, and because two Reader Reports . 3. of our long-time correspondents were heading there just weeks apart, I decided to run stories with contrasting Dehydration and Diving . 4. views about two different dive operators. I think this can be extremely helpful for divers who have never vis- Could This Diver’s Death Have ited Cozumel, and for those who have, perhaps our writers Been Prevented? . .6 . will offer you new options. Now, go get wet! Little Cayman, Cocos, Palau . 9. -- Ben Davison They Left Without the Dead * * * * * Diver’s Body . 11. Murder of Stuart Cove’s Dock listening for splendid toadfish Manager . 12. Dear Fellow Diver: Rarest Dive Watch Ever? . 13. One of my favorite fish is Cozumel’s endemic splen- Starving Underwater did toadfish, which I look for under low-ceiling recesses Photographers: Part I . 14. on the sand. The vibrant yellow fin borders and gray-, blue- and white-striped body pop out, making its discovery Dive Your Golf Course . 15. a real treat. As a repeat diver with Aqua Safari, I was Bubbles Up . 16. fortunate on this trip to be guided by Mariano, a Yucatan native who has been Bad Night on the Wind Dancer 17 with Aqua Safari for 20 years.
    [Show full text]
  • Radiocarbon Ages of Lacustrine Deposits in Volcanic Sequences of the Lomas Coloradas Area, Socorro Island, Mexico
    Radiocarbon Ages of Lacustrine Deposits in Volcanic Sequences of the Lomas Coloradas Area, Socorro Island, Mexico Item Type Article; text Authors Farmer, Jack D.; Farmer, Maria C.; Berger, Rainer Citation Farmer, J. D., Farmer, M. C., & Berger, R. (1993). Radiocarbon ages of lacustrine deposits in volcanic sequences of the Lomas Coloradas area, Socorro Island, Mexico. Radiocarbon, 35(2), 253-262. DOI 10.1017/S0033822200064924 Publisher Department of Geosciences, The University of Arizona Journal Radiocarbon Rights Copyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved. Download date 28/09/2021 10:52:25 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/653375 [RADIOCARBON, VOL. 35, No. 2, 1993, P. 253-262] RADIOCARBON AGES OF LACUSTRINE DEPOSITS IN VOLCANIC SEQUENCES OF THE LOMAS COLORADAS AREA, SOCORRO ISLAND, MEXICO JACK D. FARMERI, MARIA C. FARMER2 and RAINER BERGER3 ABSTRACT. Extensive eruptions of alkalic basalt from low-elevation fissures and vents on the southern flank of the dormant volcano, Cerro Evermann, accompanied the most recent phase of volcanic activity on Socorro Island, and created 14C the Lomas Coloradas, a broad, gently sloping terrain comprising the southern part of the island. We obtained ages of 4690 ± 270 BP (5000-5700 cal BP) and 5040 ± 460 BP (5300-6300 cal BP) from lacustrine deposits that occur within volcanic sequences of the lower Lomas Coloradas. Apparently, the sediments accumulated within a topographic depression between two scoria cones shortly after they formed. The lacustrine environment was destroyed when the cones were breached by headward erosion of adjacent stream drainages.
    [Show full text]
  • Parque Nacional Revillagigedo
    EVALUATION REPORT Parque Nacional Revillagigedo Location: Revillagigedo Archipelago, Mexico, Eastern Pacific Ocean Blue Park Status: Nominated (2020), Evaluated (2021) MPAtlas.org ID: 68808404 Manager(s): Comisión Nacional de Áreas Naturales Protegidas (CONANP) MAPS 2 1. ELIGIBILITY CRITERIA 1.1 Biodiversity Value 4 1.2 Implementation 8 2. AWARD STATUS CRITERIA 2.1 Regulations 11 2.2 Design, Management, and Compliance 13 3. SYSTEM PRIORITIES 3.1 Ecosystem Representation 18 3.2 Ecological Spatial Connectivity 18 SUPPLEMENTAL INFORMATION: Evidence of MPA Effects 19 Figure 1: Revillagigedo National Park, located 400 km south of Mexico’s Baja peninsula, covers 148,087 km2 and includes 3 zone types – Research (solid blue), Tourism (dotted), and Traditional Use/Naval (lined) – all of which ban all extractive activities. It is partially surrounded by the Deep Mexican Pacific Biosphere Reserve (grey) which protects the water column below 800 m. All 3 zones of the National Park are shown in the same shade of dark blue, reflecting that they all have Regulations Based Classification scores ≤ 3, corresponding with a fully protected status (see Section 2.1 for more information about the regulations associated with these zones). (Source: MPAtlas, Marine Conservation Institute) 2 Figure 2: Three-dimensional map of the Revillagigedo Marine National Park shows the bathymetry around Revillagigedo’s islands. (Source: Comisión Nacional de Áreas Naturales Protegidas, 2018) 3 1.1 Eligibility Criteria: Biodiversity Value (must satisfy at least one) 1.1.1. Includes rare, unique, or representative ecosystems. The Revillagigedo Archipelago is comprised of a variety of unique ecosystems, due in part to its proximity to the convergence of five tectonic plates.
    [Show full text]