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S41467-020-18361-4.Pdf
ARTICLE https://doi.org/10.1038/s41467-020-18361-4 OPEN Seafloor evidence for pre-shield volcanism above the Tristan da Cunha mantle plume ✉ Wolfram H. Geissler 1 , Paul Wintersteller 2,3, Marcia Maia4, Anne Strack3, Janina Kammann5, Graeme Eagles 1, Marion Jegen6, Antje Schloemer1,7 & Wilfried Jokat 1,2 Tristan da Cunha is assumed to be the youngest subaerial expression of the Walvis Ridge hot spot. Based on new hydroacoustic data, we propose that the most recent hot spot volcanic 1234567890():,; activity occurs west of the island. We surveyed relatively young intraplate volcanic fields and scattered, probably monogenetic, submarine volcanoes with multibeam echosounders and sub-bottom profilers. Structural and zonal GIS analysis of bathymetric and backscatter results, based on habitat mapping algorithms to discriminate seafloor features, revealed numerous previously-unknown volcanic structures. South of Tristan da Cunha, we discovered two large seamounts. One of them, Isolde Seamount, is most likely the source of a 2004 submarine eruption known from a pumice stranding event and seismological analysis. An oceanic core complex, identified at the intersection of the Tristan da Cunha Transform and Fracture Zone System with the Mid-Atlantic Ridge, might indicate reduced magma supply and, therefore, weak plume-ridge interaction at present times. 1 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany. 2 Faculty of Geosciences, University of Bremen, Klagenfurter Str. 4, 28359 Bremen, Germany. 3 MARUM—Center of Marine Environmental Sciences, University of Bremen, Leobener Str. 8, 28359 Bremen, Germany. 4 CNRS-UBO Laboratoire Domaines Océaniques, Institut Universitaire Européen de la Mer, 29280 Plouzané, France. -
Beetles of the Tristan Da Cunha Islands
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Koleopterologische Rundschau Jahr/Year: 2013 Band/Volume: 83_2013 Autor(en)/Author(s): Hänel Christine, Jäch Manfred A. Artikel/Article: Beetles of the Tristan da Cunha Islands: Poignant new findings, and checklist of the archipelagos species, mapping an exponential increase in alien composition (Coleoptera). 257-282 ©Wiener Coleopterologenverein (WCV), download unter www.biologiezentrum.at Koleopterologische Rundschau 83 257–282 Wien, September 2013 Beetles of the Tristan da Cunha Islands: Dr. Hildegard Winkler Poignant new findings, and checklist of the archipelagos species, mapping an exponential Fachgeschäft & Buchhandlung für Entomologie increase in alien composition (Coleoptera) C. HÄNEL & M.A. JÄCH Abstract Results of a Coleoptera collection from the Tristan da Cunha Islands (Tristan and Nightingale) made in 2005 are presented, revealing 16 new records: Eleven species from eight families are new records for Tristan Island, and five species from four families are new records for Nightingale Island. Two families (Anthribidae, Corylophidae), five genera (Bisnius STEPHENS, Bledius LEACH, Homoe- odera WOLLASTON, Micrambe THOMSON, Sericoderus STEPHENS) and seven species Homoeodera pumilio WOLLASTON, 1877 (Anthribidae), Sericoderus sp. (Corylophidae), Micrambe gracilipes WOLLASTON, 1871 (Cryptophagidae), Cryptolestes ferrugineus (STEPHENS, 1831) (Laemophloeidae), Cartodere ? constricta (GYLLENHAL, -
Biodiversity: the UK Overseas Territories. Peterborough, Joint Nature Conservation Committee
Biodiversity: the UK Overseas Territories Compiled by S. Oldfield Edited by D. Procter and L.V. Fleming ISBN: 1 86107 502 2 © Copyright Joint Nature Conservation Committee 1999 Illustrations and layout by Barry Larking Cover design Tracey Weeks Printed by CLE Citation. Procter, D., & Fleming, L.V., eds. 1999. Biodiversity: the UK Overseas Territories. Peterborough, Joint Nature Conservation Committee. Disclaimer: reference to legislation and convention texts in this document are correct to the best of our knowledge but must not be taken to infer definitive legal obligation. Cover photographs Front cover: Top right: Southern rockhopper penguin Eudyptes chrysocome chrysocome (Richard White/JNCC). The world’s largest concentrations of southern rockhopper penguin are found on the Falkland Islands. Centre left: Down Rope, Pitcairn Island, South Pacific (Deborah Procter/JNCC). The introduced rat population of Pitcairn Island has successfully been eradicated in a programme funded by the UK Government. Centre right: Male Anegada rock iguana Cyclura pinguis (Glen Gerber/FFI). The Anegada rock iguana has been the subject of a successful breeding and re-introduction programme funded by FCO and FFI in collaboration with the National Parks Trust of the British Virgin Islands. Back cover: Black-browed albatross Diomedea melanophris (Richard White/JNCC). Of the global breeding population of black-browed albatross, 80 % is found on the Falkland Islands and 10% on South Georgia. Background image on front and back cover: Shoal of fish (Charles Sheppard/Warwick -
UK Overseas Territories
INFORMATION PAPER United Kingdom Overseas Territories - Toponymic Information United Kingdom Overseas Territories (UKOTs), also known as British Overseas Territories (BOTs), have constitutional and historical links with the United Kingdom, but do not form part of the United Kingdom itself. The Queen is the Head of State of all the UKOTs, and she is represented by a Governor or Commissioner (apart from the UK Sovereign Base Areas that are administered by MOD). Each Territory has its own Constitution, its own Government and its own local laws. The 14 territories are: Anguilla; Bermuda; British Antarctic Territory (BAT); British Indian Ocean Territory (BIOT); British Virgin Islands; Cayman Islands; Falkland Islands; Gibraltar; Montserrat; Pitcairn, Henderson, Ducie and Oeno Islands; Saint Helena, Ascension and Tristan da Cunha; South Georgia and the South Sandwich Islands; Turks and Caicos Islands; UK Sovereign Base Areas. PCGN recommend the term ‘British Overseas Territory Capital’ for the administrative centres of UKOTs. Production of mapping over the UKOTs does not take place systematically in the UK. Maps produced by the relevant territory, preferably by official bodies such as the local government or tourism authority, should be used for current geographical names. National government websites could also be used as an additional reference. Additionally, FCDO and MOD briefing maps may be used as a source for names in UKOTs. See the FCDO White Paper for more information about the UKOTs. ANGUILLA The territory, situated in the Caribbean, consists of the main island of Anguilla plus some smaller, mostly uninhabited islands. It is separated from the island of Saint Martin (split between Saint-Martin (France) and Sint Maarten (Netherlands)), 17km to the south, by the Anguilla Channel. -
Population Trends of Spectacled Petrels Procellaria Conspicillata and Other Seabirds at Inaccessible Island
Ryan et al.: Population trends for Spectacled Petrels at Inaccessible Island 257 POPULATION TRENDS OF SPECTACLED PETRELS PROCELLARIA CONSPICILLATA AND OTHER SEABIRDS AT INACCESSIBLE ISLAND PETER G. RYAN1*, BEN J. DILLEY1 & ROBERT A. RONCONI2 1FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa *([email protected]) 2Canadian Wildlife Service, Environment and Climate Change Canada, 45 Alderney Dr., Dartmouth, NS B2Y 2N6, Canada Received 21 March 2019, accepted 29 July 2019 ABSTRACT RYAN, P.G., DILLEY, B.J. & RONCONI, R.A. 2019. Population trends of Spectacled Petrels Procellaria conspicillata and other seabirds at Inaccessible Island. Marine Ornithology 47: 257–265. Inaccessible Island, in the Tristan da Cunha archipelago, is the sole breeding site of the Spectacled Petrel Procellaria conspicillata. The island also supports globally important populations of four threatened seabirds, as well as populations of other seabird species. A seabird monitoring protocol was established in 2004, following baseline surveys of most surface-breeding species in 1999. For the species monitored, we report population trends that are based on visits in 2009 and 2018. Populations of most monitored species appear to be stable or increasing, including three albatross species currently listed as Endangered or Critically Endangered. However, numbers of Northern Rockhopper Penguin Eudyptes moseleyi may have decreased slightly since 1999, and numbers of Antarctic Tern Sterna vittata have decreased since 1982. The population of Spectacled Petrels is estimated to be at least 30 000 pairs and continues to increase since feral pigs Sus scrofa died out on the island in the early 20th century. -
Tristan Da Cunha
Tristan da Cunha Biodiversity Action Plan Enquiries relating to this plan: Simon Glass Conservation Officer Tristan [email protected] James Glass Head of Tristan Natural Resources Department Tristan [email protected] Sarah Sanders Country Programmes Manager UK Overseas Territories RSPB [email protected] Cover photograph: Atlantic Yellow-nosed albatross on Nightingale Island with Tristan in the background All photos by: Paul Tyler, Alison Rothwell, Erica Sommer and James Glass Foreword by Lewis Glass Acting Administrator, Tristan da Cunha From the moment Tristão d’Acunha first sighted the islands in 1506, Tristan da Cunha has been recognised as a unique place, with an assemblage of wildlife found nowhere else on the globe. Our very way of life on Tristan has always been dependant on the sustainable harvest of the natural resources of the island, and careful management has protected this resource for future generations. For the first time the Tristan islanders are now fully involved in the conservation of our unique natural heritage, not only for the economy of the islands, but also for the enlightenment and enjoyment of current and future generations. This plan will guide and encourage our efforts to protect our unique islands. Lewis Glass Acting Administrator Tristan da Cunha October 2005 2 By Mike Hentley Administrator, Tristan da Cunha Residents on Tristan, the world’s most isolated island community, well understand the need to live in harmony with nature. Their livelihoods depend on using natural resources wisely, and they take seriously their responsibilities for preserving a healthy environment on Tristan and it’s neighbouring islands. -
Rep Octs South Atlantic 2007.Pdf 732.41 KB
European Commission EuropeAid Cooperation Office Framework contract Beneficiaries LOT 6 - Environment Country: Overseas Countries and Territories Project title: OCT Environmental Profiles Request for services no. 2006/12146 Final Report Part 2 - Detailed Report Section E - South Atlantic Region January 2007 Consulting Engineers and Planners A/S, Denmark PINSISI Consortium Partners PA Consulting Group, UK IIDMA, Spain ICON Institute, Germany Scanagri, Denmark NEPCon, Denmark INVESTprojekt NNC, Czech SOFRECO, France OVERSEAS COUNTRIES AND TERRITORIES ENVIRONMENTAL PROFILE PART 2 - Detailed Report Section A - South Atlantic region This study was financed by the European Commission and executed by the Joint-Venture of NIRAS PINSISI Consortium partners. The opinions expressed are those of the consultants and do not represent any official view of the European Commission nor the Governments of any of the overseas countries and territories or associated member states of the European Union. Prepared by: Jonathan Pearse Helena Berends Page 2 / 74 LIST OF ABBREVIATIONS AND ACRONYMS USED ACAP Agreement on Conservation of Albatrosses and Petrels ACOR Association Française pour les Récifs Coralliens ACS Association of Caribbean States AEPS Arctic Environmental Protection Strategy AFL Aruba guilders AI Ascension Island AIG Ascension Island Government AIWSA Ascension Island Works & Services Agency AMAP Arctic Monitoring and Assessment Programme ANG Anguilla ANRD Agricultural & Natural Resources Department AOSIS Alliance of Small Island States APEC Asia–Pacific -
Subspecies of Hypolepis Rugosula (Dennstaedtiaceae; Pteridophyta) Around the World: Morphological and Biogeographic Perspectives
Acta Botanica Brasilica 28(2): 206-226. 2014. Subspecies of Hypolepis rugosula (Dennstaedtiaceae; Pteridophyta) around the world: morphological and biogeographic perspectives Pedro Bond Schwartsburd1,3 and Jefferson Prado2 Received: 20 February, 2013. Accepted: 5 November, 2013 ABSTRACT The “Hypolepis rugosula complex” has been the subject of great debate among pteridologists: some have considered H. rugosula a single subcosmopolitan (or circum-Antarctic) species, whereas others have considered it a species- -complex, encompassing several species. In the 1920s and 1930s, four geographically distinct varieties of H. rugosula were recognized. In this work, we present a new taxonomy (with new combinations and statuses, as well as typifica- tion and full synonymy), together with complete distribution data for the species, with an infraspecific classification based on morphological and biogeographic perspectives. Hypolepis rugosula occurs in southern temperate regions and high-elevation tropical regions of the Americas, Africa (including Madagascar), Oceania and the Philippines, as well as in some isolated oceanic volcanic islands (e.g., Saint Helena and Tristan da Cunha). Here, 15 geographically distinct subspecies are recognized. All subspecies are geographically segregated from each other, except in New Ze- aland, where two occur sympatrically—possibly due to two different arrival and colonization times. Four patterns of “indument” (referring to catenate and glandular hairs collectively) are distinguished. Different lineages are successful in their respective habitats; we observed two lineages with different ploidy levels (tetraploid and octoploid). Although long-distance dispersal is the best explanation for the extant distribution of H. rugosula; we do not exclude vicariance as a possible explanation for their occurrence on the land masses that were once united as Gondwana. -
Oil Spill Response in Low Level Planning and Preparedness Areas: a Case Study
Oil spill response in low level planning and preparedness areas: a case study Franck Laruelle - ITOPF Nightingale Islands is a small (3.2 km2) uninhabited island which is part of the Tristan da Cunha (TdC) group in the South Atlantic. Tristan da Cunha is part of the British overseas territory of Saint Helena, Ascension and Tristan da Cunha. It is formed of four main islands, Tristan da Cunha, Inaccessible, Gough and Nightingale. Adjacent to Nightingale Island are two small islets, Middle Island and Stoltenhoff Island. Tristan da Cunha Island is approximately 18nm North of Nightingale and has a settlement, Edinburgh of the Seven Seas, of 262 inhabitants. Inaccessible Island is approximately 10 nautical miles to the North West of Nightingale and is part of a UNESCO World Heritage site. Gough is located 206 nautical miles in the South-Southeast of Nightingale Island. Nightingale is seabird sanctuary hosting many endemic and endangered species in large numbers (more than 2 million birds) and it is rodent-free. Nightingale is, in particular, home of a significant proportion (13-18%) of the world breeding population of Northern Rockhopper penguin. The other colonies are located on other islands of the Tristan da Cunha group (on Gough in particular with 30 to 43% of the world breeding population) and on Amsterdam and Saint Paul Islands in the South Indian Ocean. Overall, 68 to 77% of the estimated breeding population is found on islands of the Tristan da Cunha group. INCIDENT On Wednesday 16th March 2011, bulk carrier MS OLIVA (GT 40,170) laden with a cargo of 65,000 tons of soya beans on transit from Brazil to Singapore grounded early in the morning on Nightingale Island. -
BEST Ecosystem Profile of the South Atlantic Region
EUROPEAN OVERSEAS REGIONAL ECOSYSTEM PROFILE South Atlantic Ascension Island Saint Helena Tristan da Cunha Falkland Islands (Malvinas) This document has been developed as part of the project ‘Measures towards Sustaining the BEST Preparatory Action to promote the conservation and sustainable use of biodiversity and ecosystem services in EU Outermost EU Outermost Regions and Overseas Countries and Territories’. The document does not represent an official, formal position of the European Commission. JUNE2016 2016 Service contract 07.0307.2013/666363/SER/B2 Prepared by: South Atlantic Environmental Research Institute (SAERI) And with the technical support of: IUCN CEPF Drafted by the BEST team of the South Atlantic hub: Maria Taylor Under the coordination of: Dr Paul Brickle and Tara Pelembe Assisted by individual experts and contributors from the following institutions: Ascension Island: Ascension Island Government Conservation Department Dr Sam Weber Dr Judith Brown Dr Andy Richardson Dr Nicola Weber Emma Nolan Kate Downes University of Exeter Dr Annette Broderick Dr Brendon Godley St Helena: St Helena Government Isabel Peters Samantha Cherrett Annalea Beard Elizabeth Clingham Derek Henry Mike Jervois Lourens Malan Dr Jill Keys Ross Towers Paul Cherrett St Helena National Trust Jeremy Harris Rebecca Cairn-Wicks David Pryce Dennis Leo Acting Governor Sean Burns Independent Dr Andre Aptroot Dr Phil Lambdon Ben Sansom Tristan da Cunha: Tristan da Cunha Government Trevor Glass James Glass Katrine Herian Falkland Islands: Falkland Island Government -
The Overseas Territories Security, Success and Sustainability
The Overseas Territories Security, Success and Sustainability www.fco.gov.uk The Overseas Territories Security, Success and Sustainability Presented to Parliament by the Secretary of State for Foreign and Commonwealth Affairs by Command of Her Majesty June 2012 Cm 8374 £29.75 © Crown copyright 2012 You may re-use this information (excluding logos) free of charge in any format or medium, under the terms of the Open Government Licence. To view this licence, visit http://www.nationalarchives.gov.uk/doc/open-government-licence/ or e-mail: [email protected]. Where we have identified any third party copyright information you will need to obtain permission from the copyright holders concerned. Any enquiries regarding this publication should be sent to us at Overseas Territories Directorate, Foreign and Commonwealth Office King Charles Street London SW1A 2AH e-mail: [email protected] This publication is available for download at www.official-documents.gov.uk This document is also available from our website at www.fco.gov.uk ISBN: 9780101837422 Printed in the UK by The Stationery Office Limited on behalf of the Controller of Her Majesty’s Stationery Office 2474732 06/12 Printed on paper containing 75% recycled fibre content minimum. Contents Forewords By the Prime Minister and Foreign Secretary ...............................................5 Executive Summary ........................................................................8 Map of the Overseas Territories ............................................ 10 Introduction -
Report on the United Kingdom and Its Overseas Entities
Review of the Status of Implementation of the Convention on Biological Diversity and of Biodiversity Action Plans in the European Union Overseas Entities REPORT ON THE UNITED KINGDOM AND ITS OVERSEAS ENTITIES A report to the International Union for Conservation of Nature (IUCN) December 2010 Gillian Cooper, Consultant TABLE OF CONTENTS ACRONYMS ................................................................................................................................................................3 EXECUTIVE SUMMARY ...........................................................................................................................................5 1. INTRODUCTION ................................................................................................................................................8 2. CURRENT STATUS ..........................................................................................................................................9 2.1. THE UKOT S ................................................................................................................................................9 2.2. UK TO UKOT RELATIONSHIP AND ENGAGEMENT IN THE CBD ................................................................11 2.3. NATIONAL BIODIVERSITY ACTION PLANS ...................................................................................................12 2.4. LOCAL BIODIVERSITY STRATEGIES AND ACTION PLANS AND POLICY AND PLANNING INSTRUMENTS RELEVANT TO BIODIVERSITY ...................................................................................................................................12