Salvesen Range Expedition 2018
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Sub-Antarctic Islands – Sentinels of Change
SCAR OPEN SCIENCE CONFERENCE 2020 SESSION 29 SUB-ANTARCTIC ISLANDS – SENTINELS OF CHANGE Christel Hansen Craig Cary, Justine Shaw, Mia Wege ABSTRACTS SUBMITTED TO THE (CANCELLED) SCAR 2020 OSC IN HOBART 1726 Ecological consequences of a single introduced species to the Antarctic: the invasive midge Eretmoptera murphyi on Signy Island Jesamine C Bartlett1, Pete Convey1, Kevin K Newsham1, Kevin A Hughes1, Scott AL Hayward1 1Norwegian Institute For Nature Research, Trondheim, Norway The nutrient-poor soils of Antarctica are sensitive to change. Ongoing increase in anthropogenically assisted non-native species introductions means that understanding the impact of such species on these soil systems is urgent, and essential for developing future risk assessments and management actions. Through comparative baseline characterisation of vegetation, microbes, soil biochemistry, substrate composition and micro-arthropod abundance, this study explores the impacts that have resulted from the 1960s introduction of the invasive chironomid midge Eretmoptera murphyi to Signy Island in maritime Antarctica. The key finding is that where E. murphyi occurs there has been an increase in inorganic nitrogen availability within the nutrient-poor soils. Concentration of available nitrate is increased three- to five-fold relative to uncolonised soils, and that the soil ecosystem may be impacted through changes in the C:N ratio which can influence decomposition rates and the mircoarthropod community. We also measured the levels of inorganic nitrogen in soils influenced by native marine vertebrate aggregations and found the increase in nitrate availability associated with E. murphyi to be similar to that from seals. We suggest that these changes will only have greater impacts over time, potentially benefitting currently limited vascular plant populations and altering plant and invertebrate communities. -
South Georgia and Antarctic Odyssey
South Georgia and Antarctic Odyssey 30 November – 18 December 2019 | Greg Mortimer About Us Aurora Expeditions embodies the spirit of adventure, travelling to some of the most wild opportunity for adventure and discovery. Our highly experienced expedition team of and remote places on our planet. With over 28 years’ experience, our small group voyages naturalists, historians and destination specialists are passionate and knowledgeable – they allow for a truly intimate experience with nature. are the secret to a fulfilling and successful voyage. Our expeditions push the boundaries with flexible and innovative itineraries, exciting Whilst we are dedicated to providing a ‘trip of a lifetime’, we are also deeply committed to wildlife experiences and fascinating lectures. You’ll share your adventure with a group education and preservation of the environment. Our aim is to travel respectfully, creating of like-minded souls in a relaxed, casual atmosphere while making the most of every lifelong ambassadors for the protection of our destinations. DAY 1 | Saturday 30 November 2019 Ushuaia, Beagle Channel Position: 20:00 hours Course: 83° Wind Speed: 20 knots Barometer: 991 hPa & steady Latitude: 54°49’ S Wind Direction: W Air Temp: 6° C Longitude: 68°18’ W Sea Temp: 5° C Explore. Dream. Discover. —Mark Twain in the soft afternoon light. The wildlife bonanza was off to a good start with a plethora of seabirds circling the ship as we departed. Finally we are here on the Beagle Channel aboard our sparkling new ice-strengthened vessel. This afternoon in the wharf in Ushuaia we were treated to a true polar welcome, with On our port side stretched the beech forested slopes of Argentina, while Chile, its mountain an invigorating breeze sweeping the cobwebs of travel away. -
Antarctica, South Georgia & the Falkland Islands
Antarctica, South Georgia & the Falkland Islands January 5 - 26, 2017 ARGENTINA Saunders Island Fortuna Bay Steeple Jason Island Stromness Bay Grytviken Tierra del Fuego FALKLAND SOUTH Gold Harbour ISLANDS GEORGIA CHILE SCOTIA SEA Drygalski Fjord Ushuaia Elephant Island DRAKE Livingston Island Deception PASSAGE Island LEMAIRE CHANNEL Cuverville Island ANTARCTIC PENINSULA Friday & Saturday, January 6 & 7, 2017 Ushuaia, Argentina / Beagle Channel / Embark Ocean Diamond Ushuaia, ‘Fin del Mundo,’ at the southernmost tip of Argentina was where we gathered for the start of our Antarctic adventure, and after a night’s rest, we set out on various excursions to explore the neighborhood of the end of the world. The keen birders were the first away, on their mission to the Tierra del Fuego National Park in search of the Magellanic woodpecker. They were rewarded with sightings of both male and female woodpeckers, Andean condors, flocks of Austral parakeets, and a wonderful view of an Austral pygmy owl, as well as a wide variety of other birds to check off their lists. The majority of our group went off on a catamaran tour of the Beagle Channel, where we saw South American sea lions on offshore islands before sailing on to the national park for a walk along the shore and an enjoyable Argentinian BBQ lunch. Others chose to hike in the deciduous beech forests of Reserva Natural Cerro Alarkén around the Arakur Resort & Spa. After only a few minutes of hiking, we saw an Andean condor soar above us and watched as a stunning red and black Magellanic woodpecker flew towards us and perched on the trunk of a nearby tree. -
Holocene Glacier Fluctuations and Environmental Changes in Sub-Antarctic South
Manuscript 1 Holocene glacier fluctuations and environmental changes in sub-Antarctic South 2 Georgia inferred from a sediment record from a coastal inlet 3 4 Sonja Berg, Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, 5 Germany Duanne A. White, Institute for Applied Ecology, University of Canberra, ACT, Australia, 2601. 6 Sandra Jivcov, Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, 7 Germany Martin Melles, Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, Germany 8 Melanie J. Leng, NERC Isotopes Geosciences Facilities, British Geological Survey, 9 Keyworth, Nottingham NG12 5GG, UK & School of Biosciences, Centre for Environmental 10 Geochemistry, The University of Nottingham, Sutton Bonington Campus, Leicestershire 11 LE12 5RD, UK 12 Janet Rethemeyer, Institute of Geology and Mineralogy, University of Cologne, 50674 13 Cologne, Germany 14 Claire Allen (BAS) British Antarctic Survey, High Cross, Madinley Road, Cambrige UK 15 Bianca Perren (BAS) British Antarctic Survey, High Cross, Madinley Road, Cambrige UK 16 Ole Bennike, Geological Survey of Denmark and Greenland, Copenhagen, Denmark. 17 Finn Viehberg, Institute of Geology and Mineralogy, University of Cologne, 50674 Cologne, 18 Germany Corresponding Author: 19 Sonja Berg, 20 Institute of Geology and Mineralogy, University of Cologne 21 Zuelpicher Strasse 49a, 50674 Cologne, Germany Email: [email protected]; Phone ++49 221 470 2540 1 22 Abstract 23 The sub-Antarctic island of South Georgia provides terrestrial and coastal marine records of 24 climate variability, which are crucial for the understanding of the drivers of Holocene climate 25 changes in the sub-Antarctic region. Here we investigate a sediment core (Co1305) from a 26 coastal inlet on South Georgia using elemental, lipid biomarker, diatom and stable isotope 27 data to infer changes in environmental conditions and to constrain the timing of Late glacial 28 and Holocene glacier fluctuations. -
Operational Plan for the Eradication of Rodents from South Georgia: Phase 1
1 Operational Plan for the eradication of rodents from South Georgia: Phase 1 South Georgia Heritage Trust 21 December 2010 Rodent eradication on South Georgia, Phase 1: Operational Plan, version 4. 21 Dec 2010 2 Table of Contents RELATED DOCUMENTS .................................................................................................................................. 4 ACKNOWLEDGMENTS .................................................................................................................................... 4 NON-TECHNICAL SUMMARY ........................................................................................................................ 5 Background .................................................................................................................................................... 5 This project..................................................................................................................................................... 6 Eradication methodology & timing ................................................................................................................ 6 Project management & staffing ...................................................................................................................... 8 Risk management............................................................................................................................................ 8 Project and Operational Plan development .................................................................................................. -
Origin and Evolution of the Sub-Antarctic Islands: the Foundation
Papersnd a Proceedings of the Royal Society of Tasmania, Volume 141 (1), 2007 35 ORIGIN AND EVOLUTION OF THE SUB-ANTARCTIC ISLANDS: THE FOUNDATION by Patrick G. Quilty (with 23 text-figures and two tables) Quilty, P.G. 2007 (23:xi): Origin and evolution of the sub-Antarctic islands: the foundation.Papers and Proceedings of the Royal Society of Tasmania 141 (1): 35-58. https://doi.org/10.26749/rstpp.141.1.35 ISSN 0080-4703. School of Earth Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001, Australia. Email: P.Quil [email protected] Sub-Antarctic islands have a diversity of origins in detail but most are volcanic and very young suggesting that they are short-lived and that the distribution would have been very differenta few million years ago. 'They contrast with the common tourist brochure concept of oceanic islands. As the Antarctic Plate is virtually static, the islands seldom show signs of association with long-lived linear island chains and most thus stand alone. Longer-lived islands are either on submarine plateaux or are continental remnants of the dispersion of Gondwana. The islands are classified in relation to raised sea-floor, transform fault, triple junction, subduction zone, submarine plateau, submerged continent or continental. Many are difficult of access and poorly known geologically. Their geological history controls their many other roles such as sites as observatories, or for study of colonisation, evolution and speciation rates. Key Words: Sub-Antarctic islands, geological evolution, Macquarie Island, Balleny Islands, Scott Island, Campbell Island, Antipodes Island, Auckland Islands, Enderby Island, Peter I Island, Islas Diego Ramirez, South Georgia, South Sandwich Islands, Bouvetoya, Gough Island, Marion Island, Prince Edward Island, Iles Crozet, Amsterdam Island, St Paul Island, Kerguelen Plateau, Iles Kerguelen, Heard Island, McDonald Island. -
In South Georgia
Pacific Insects 14 (3) : 615-625 20 November 1972 DISTRIBUTION PATTERNS OF CRYPTOSTIGMATID MITES (Arachnida: Acari) IN SOUTH GEORGIA By John A. Wallwork1 INTRODUCTION During the years 1962-64 extensive collections of cryptostigmatid mites were made in South Georgia by H. B. Clagg. A preliminary taxonomic report on some of these collec tions has already been published (Wallwork 1970) and this, together with an earlier survey (Wallwork 1966) based on material provided by the British Antarctic Survey, allows us to compile a list of 19 species from this locality. The Clagg collections, which have now been examined in detail, comprise just over 300 samples, although not all of these contained cryptostigmatid mites, and some yielded only juvenile specimens which could not be identified to species with any certainty. These samples originate from three different geographical localities, namely the main island of South Georgia, Bird Island and Willis Island, and from a range of microhabitats, so that they provide an opportunity to analyse the effects of geographical and ecological factors on distribution patterns of the mites in this area. All of the species encountered in this latest study have been recorded previously, and this indicates that a representative picture of the faunal com position has been obtained. The purposes of the present paper are to interpret distribution patterns in terms of geographical and ecological factors, and to discuss the affinities of the South Georgia cryptostigmatid fauna with that of neighbouring areas in the subantarctic, maritime An tarctic and South American regions. The collections were made available through the kindness of Professor J. -
Durham E-Theses
Durham E-Theses Late Holocene records of Antarctic fur Seal (Arctocephalus gazella) population variation on South Georgia, sub Antarctic Foster, Victoria A. How to cite: Foster, Victoria A. (2005) Late Holocene records of Antarctic fur Seal (Arctocephalus gazella) population variation on South Georgia, sub Antarctic, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/3934/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk 2 Late Holocene records of Antarctic Fur Seal {Arctocephalus gazella) population variation on South Georgia, sub Antarctic Victoria A Foster MSc by Research University of Durham Department of Geography 2005 Tbe copyright of this thesis rests with the author or the university to which it was submitted. No quotation from it, or information derived from it may be published without the prior written consent of the author or university, and any information derived from it should be acknowledged. -
The Onset of Deglaciation of Cumberland Bay and Stromness Bay, South Georgia N
Antarctic Science 17 (1): 29–32 (2005) © Antarctic Science Ltd Printed in the UK DOI: 10.1017/S0954102005002397 The onset of deglaciation of Cumberland Bay and Stromness Bay, South Georgia N. VAN DER PUTTEN* and C. VERBRUGGEN Laboratory for Palaeoecology and Landscape Genesis, Ghent University, Department of Geography, S8/B2, Krijgslaan, 281, B-9000 Gent, Belgium *Corresponding author: [email protected] Abstract: Carbon dating of basal peat deposits in Cumberland Bay and Stromness Bay and sediments from a lake in Stromness Bay, South Georgia indicates deglaciation at the very beginning of the Holocene before c. 9500 14C yr BP. This post-dates the deglaciation of one local lake which has been ice-free since at least 15 700 14C yr BP on account of its atypical geomorphological location. The latter indicates the likely presence of floristic refugia on South Georgia during the Last Glacial Maximum from which newly exposed terrestrial and aquatic habitats were rapidly colonized. Received 20 July 2004, accepted 19 September 2004 Key words: Early Holocene deglaciation, geomorphology, glacial refugia, palaeoecology, radiocarbon dates, sub-Antarctic Introduction der Putten et al. 2004). Geomorphological (Clapperton 1971, 1990, Clapperton et al. 1978, 1989), palaeoecological (Barrow 1977, 1983, Review of the existing data on deglaciation Barrow & Smith 1983, Clapperton et al. 1989, Van der Putten et al. 2004) and lithological-chemical investigation Based on research in Cumberland East Bay, Cumberland (Rosqvist et al. 1999, Rosqvist & Schuber 2003) of organic West Bay and Stromness Bay Clapperton (1971, 1990) and lake and terrestrial sediments around Stromness Bay and Clapperton et al. (1978, 1989), presented a model of Cumberland Bay (Fig. -
Introduction
South Georgia-plan for progress 9/27/06 5:48 PM Page 8 Salvesen Range from Drygalski Fjord David Nicholls South Georgia-plan for progress 9/27/06 5:48 PM Page 1 Introduction Aims and purpose of the plan This current Plan is not intended to replace the 2000 version, but to complement it. The policies have been updated and are presented in a readable and The Environmental Management Plan accessible format with clear commitments and for South Georgia, published in 2000, objectives. It is set out in seven chapters comprising gives comprehensive background an introduction and sections on natural environ- ment, heritage, visiting South Georgia, human information on the islands and sets impacts, fisheries and research. Each chapter con- out management policies. The tains articles and feature boxes, with a focus on intention was to review these recent activities designed to provide accessible background information to the policies. The policies policies after a period of five years. are presented at the end of each chapter. During 2005, a review was undertaken taking into consideration information gathered since the last South Georgia – at a glance Plan was produced, including Government com- missioned environmental reports. A comprehen- South Georgia is a long, narrow island situated in sive questionnaire survey was undertaken to the rough and windswept Southern Ocean. engage stakeholders in the policy revisions. The Spectacular mountains rise from the sea to almost revised policies are presented in this Plan. 3000m, forming a central ridge running from The Plan is intended to cover the five year period north-west to south-east. -
Report on South Georgia Crossing
Metolius South Georgia Expedition November–December 2006 Flag 69 A Report Prepared for the Government of South Georgia and the South Sandwich Islands and the Explorer’s Club By Tor Lundgren Acknowledgements! 1 Summary! 2 Background! 2 Team Roster! 3 Overland Group! 3 Ship"s Crew! 4 Objectives! 5 Findings! 5 Route! 5 Weather! 5 Equipment! 6 General! 6 Expedition Log! 7 Getting There! 7 Elsehul! 10 King Haakon Bay! 13 Shackleton Crossing! 14 Grytviken and the East Coast! 18 Larsen Harbor! 21 Husvik & Salisbury Plain! 24 Back to Stanley! 26 Bibliography! 27 Acknowledgements The expedition would like to thank: Skip Novak and the excellent crew of the Pelagic Australis; Dave Hahn and John Race for their superb mountaineering support; Skye Fitzgerald for his steady hand on the camera in all conditions; the Government of South Georgia for a providing permits and access to the island, and for their continued effort to maintain its pristine environment; the Explorers Club for the privilege of carrying Flag 69 on our expedition; the staff of the British Antarctic Survey at Grytviken for their reception and support; the staff of the museum at Grytviken for their generosity and a good cup of tea; and finally, the Stanley Golf club for the present of a round of golf and excellent signs marking the hazards peculiar to that course. 1 Summary The Metolius South Georgia Expedition traversed the overland passage of South Georgia first made by Shackleton in 1917. It also explored the area around Larsen Harbor, including the approaches to Mt. Sabatier and several of the smaller peaks in the vicinity. -
A Spring Expedition to the Sub-Antarctic Island of South Georgia
SOUTH GEORGIA EXPEDITION 2018 Stephen Venables in association with Pelagic Expeditions A spring expedition to the sub-Antarctic island of South Georgia September 8 – October 13 2018 Sailing, wildlife and polar heritage Ski-mountaineering with the possibility of first ascents !1 SOUTH GEORGIA EXPEDITION 2018 Stephen Venables in association with Pelagic Expeditions BACKGROUND I first went to South Georgia during the austral summer of 1989-90. At the end of that expedition, when we made first ascents of Mt Kling and Mt Carse, I assumed that this was a one-off trip. How wrong I was. I have now been back six times and each time I leave the island I am even keener to return to that magical combination of ocean, glaciers and mountains, inhabited by some of the most prolific wildlife anywhere in the world. Three of my seven expeditions have been to the Salvesen Range at the little-visited southern end of the island. The most recent, in 2016, achieved several first ascents, including the spectacular Starbuck Peak. However, there is still unfinished business. Several stunning peaks remain unclimbed; regardless of summits, the route we perfected from Trolhul, at the southern tip of the island, to the immense penguin colony at St Andrew’s Bay, is a magnificent ski tour. That is our Plan A for 2018. If conditions are unsuitable, Plan B is to explore the more accessible – and slightly less weather-dependent – northwest end of the island. As usual, we also plan many other delights for the non-mountaineering sailing support team. ANTARCTICA FALKLANDS Shackleton 1916 Allardyce Range 100 miles N Salvesen !2 SOUTH GEORGIA EXPEDITION 2018 Stephen Venables in association with Pelagic Expeditions EXPEDITION LEADERS The 2018 expedition, like four previous ventures, will be led by me and the owner of the Pelagic fleet, Skip Novak, who has been sailing to remote mountains in and around Antarctica for over 25 years.