scholarly journals Lichens from the Admiralty Bay region, King George Island (South Shetland Islands, Antarctica)

2014 ◽  
Vol 58 (3) ◽  
pp. 493-512 ◽  
Author(s):  
Maria Olech
Keyword(s):  
Southern Hemisphere ◽  
South Shetland Islands ◽  
King George Island ◽  
The South ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
New Localities ◽  
The Antarctic

61 Species new to the Admiralty Bay region are reported. Among them 51 are new to King George Island, 35 to the South Shetland archipelago, 15 to the Antarctic zone, and 6 to the Southern Hemisphere. A further 49 species were found at new localities.

scholarly journals New records of isopod species of the Antarctic Specially Managed Area No. 1, Admiralty Bay, South Shetland Islands

2017 ◽  
Vol 38 (3) ◽  
pp. 409-419
Author(s):  
Karol Zemko ◽  
Krzysztof Pabis ◽  
Jacek Siciński ◽  
Magdalena Błażewicz
Keyword(s):  
Southern Ocean ◽  
New Records ◽  
South Shetland Islands ◽  
Small Scale ◽  
King George Island ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
The Antarctic ◽  
First Time ◽  
Marine Basins

AbstractAdmiralty Bay (King George Island) is an Antarctic Specially Managed Area and one the most thoroughly studied small-scale marine basins in the Southern Ocean. Our study provides new data on the isopod fauna in this glacially affected fjord. Twelve species of isopods were recorded in this basin for the first time. Six of them were found for the first time in the region of the South Shetland Islands. The highest number of species new for Admiralty Bay were found in the families Munnopsidae (4 species) and Munnidae (3 species).

scholarly journals Two additions to the moss flora of the South Shetland Islands in the maritime Antarctic

2018 ◽  
Vol 87 (4) ◽  
Author(s):  
Mariusz Wierzgoń ◽  
Tomasz Suchan ◽  
Michał Ronikier
Keyword(s):  
South Shetland Islands ◽  
King George Island ◽  
Maritime Antarctic ◽  
The South ◽  
Shetland Islands ◽  
Bay Area ◽  
Leading Position ◽  
Glacial Cover ◽  
The Antarctic ◽  
First Time

<em>Tortella fragilis</em> (Drumm.) Limpr. (Pottiaceae) and <em>Bryum nivale</em> Müll. Hal. (Bryaceae) are recorded for the first time from the South Shetland Islands in the northern maritime Antarctic. They were discovered in the Admiralty Bay area on King George Island, the largest island of this archipelago. The two species are briefly characterized morphologically, their habitats are described, and their distribution in the Antarctic is mapped. Discovery of these species has increased the documented moss flora of King George Island to 67 species, strengthening it in the leading position among individual areas with the richest diversity of moss flora in Antarctica. Likewise, <em>T. fragilis</em> and <em>B. nivale</em> represent remarkable additions to the moss flora of the South Shetland Islands, which currently consists of 92 species and one variety, making this archipelago by far the richest bryofloristically amongst large geographic regions of the Antarctic. Comparison of recent (2018) and old (1985) photographs revealed a significant retreat of glacial cover and suggests that the collection site was likely opened for colonization only within the last several decades. The record of <em>T. fragilis</em> is biogeographically relevant, and constitutes an intermediate site between the species’ occurrences in the Antarctic Peninsula and southern South America. The present record of <em>B. nivale</em> is the fourth discovery of the species worldwide, which may be helpful for the future designation of the distribution of this extremely rare species.

scholarly journals Southern elephant seal movements and Antarctic sea ice

2000 ◽  
Vol 12 (1) ◽  
pp. 3-15 ◽  
Author(s):  
H. Bornemann ◽  
M. Kreyscher ◽  
S. Ramdohr ◽  
T. Martin ◽  
A. Carlini ◽  
...  
Keyword(s):  
Sea Ice ◽  
Antarctic Peninsula ◽  
South Shetland Islands ◽  
Mirounga Leonina ◽  
King George Island ◽  
The South ◽  
Elephant Seals ◽  
Shetland Islands ◽  
Pack Ice ◽  
The Antarctic

Weaned pups and post-moult female elephant seals (Mirounga leonina) were fitted with satellite transmitters at King George Island (South Shetland Islands) between December 1996 and February 1997. Of the nine adult females tracked for more than two months, three stayed in a localized area between the South Shetland Islands and the South Orkney Islands. The other six females travelled south-west along the coast of the Antarctic Peninsula up to the Bellingshausen Sea. Two of them then moved north-east and hauled out on South Georgia in October. One female was last located north of the South Shetland Islands in March 1998. In total, eight females were again sighted on King George Island and six of the transmitters removed. The tracks of the weaners contrasted with those of the adults. In January, five juveniles left King George Island for the Pacific sector spending about four weeks in the open sea west of the De Gerlache Seamounts. Three of them returned to the tip of the Antarctic Peninsula in June, of which one was last located on the Patagonian Shelf in November 1997. The juveniles avoided sea ice while the adults did not. The latter displayed behavioural differences in using the pack ice habitat during winter. Some females adjusted their movement patterns to the pulsating sea ice fringe in distant foraging areas while others ranged in closed pack ice of up to 100%. The feeding grounds of adult female elephant seals are more closely associated with the pack ice zone than previously assumed. The significance of the midwater fish Pleuragramma antarcticum as a potential food resource is discussed.

scholarly journals First documented record of barn swallow (Hirundo rustica) in the Antarctic

2011 ◽  
Vol 32 (4) ◽  
pp. 355-360 ◽  
Author(s):  
Małgorzata Korczak-Abshire ◽  
Alexander Lees ◽  
Agata Jojczyk
Keyword(s):  
Passerine Bird ◽  
Hirundo Rustica ◽  
South Shetland Islands ◽  
King George Island ◽  
The South ◽  
Barn Swallow ◽  
Shetland Islands ◽  
Antarctic Convergence ◽  
The World ◽  
The Antarctic

First documented record of barn swallow (Hirundo rustica) in the Antarctic Here we report a photo-documented record of a barn swallow (Hirundo rustica) from the South Shetland Islands. We also review previous records of passerine vagrants in the Antarctic (south of the Antarctic Convergence Zone). This barn swallow is the first recorded member of the Hirundinidae family on King George Island and is only the second passerine recorded in the South Shetland Islands. This sighting, along with previous records of austral negrito and austral trush represent the southernmost sightings of any passerine bird anywhere in the world.

scholarly journals Detecção de Mudanças Ambientais na Antártica através de Dados de Sensoriamento Remoto e Mapas Históricos

2001 ◽  
Vol 28 (2) ◽  
pp. 337
Author(s):  
JORGE ARIGONY NETO ◽  
JEFERSON CARDIA SIMÕES ◽  
ULISSES FRANZ BREMER ◽  
FRANCISCO ELISEU AQUINO
Keyword(s):  
Ice Cover ◽  
South Shetland Islands ◽  
King George Island ◽  
Ice Shelves ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
Climatic Variations ◽  
Glacier System ◽  
Ice Retreat ◽  
The Antarctic

Ice masses in the South Shetland Islands, Antarctica, are relatively thin and near or at the melting pressure point. They are, therefore, very sensitive to climatic variations. This work discusses glaciers retreat observed since 1950s in the Antarctic Specially Managed Area (ASMA) of Admiralty Bay in King George Island. From 1956 to 1979 this area lost 4.3 km2 (2%) of its ice cover. Further 4.9 km2 disappeared (10% of the original ice cover, i.e. in 1956). The ice retreat magnitude in this period cannot be attributed to in-built variations of the glacier system. Further, it is associated to similar glaciers retractions and ice shelves collapses in the northern most part of the Antarctic Peninsula. Probably this general ice retreat results from or is enhanced by the atmospheric warming recorded for the region since 1940s.

scholarly journals Changes in acanthocephalan infection of the Antarctic fish Notothenia coriiceps in Admiralty Bay, King George Island, over 29 years

2012 ◽  
Vol 33 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Zdzisław Laskowski ◽  
Małgorzata Korczak-Abshire ◽  
Krzysztof Zdzitowiecki
Keyword(s):  
Dominant Species ◽  
Antarctic Fish ◽  
Common Species ◽  
South Shetland Islands ◽  
King George Island ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
Notothenia Coriiceps ◽  
The Antarctic ◽  
Subdominant Species

Changes in acanthocephalan infection of the Antarctic fishNotothenia coriicepsin Admiralty Bay, King George Island, over 29 yearsA comparison between the levels of infection with Acanthocephala of the fishNotothenia coriicepsin Admiralty Bay (South Shetland Islands, Antarctic) in 1978/79 and 2007/08 is presented. The same eight acanthocephalan species, three echinorhynchids maturing in fish,Aspersentis megarhynchus(dominant species),Metacanthocephalus johnstoni(subdominant species) andM. dalmori(common species), and five polymorphids maturing in mammals and birds,Corynosoma hamanni, C. pseudohamanni(both co-dominant species),C. arctocephaliandC. bullosum(both common species), andC. shackletoni(rare species), were found. Echinorhynchids were more numerous in 2007/08 (mean abundance 46.54 versus 35.35 in 1978/79), whereas polymorphids more numerous in 1978/79 (mean abundance 74.35versus36.40 in 2007/08). The overall results therefore demonstrated that echinorhynchids were more numerous than polymorphids in 2007/08 and the reverse was true in 1978/79. This situation is dependent mainly upon the decreased infections withC. hamanni, C. pseudohamanniandC. bullosum, and to a lesser degree upon the increasing of infections withM. johnstoni.The decrease of the threeCorynosomaspp. is possibly associated with the decreasing of populations of final hosts, seals, on the shore of Admiralty Bay in the vicinity ofArctowskiStation.

A new Antarctic foraminiferal species for detecting climate change in sub-Recent glacier-proximal sediments

2009 ◽  
Vol 21 (5) ◽  
pp. 439-448 ◽  
Author(s):  
Wojciech Majewski ◽  
Andrzej Tatur
Keyword(s):  
Climate Change ◽  
Climate Warming ◽  
The Arctic ◽  
South Shetland Islands ◽  
King George Island ◽  
Tidewater Glaciers ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
Foraminiferal Species ◽  
Water Depths

AbstractCribroelphidium webbi sp. nov. is the only adequately described sub-Recent elphidiid foraminifer from Antarctica. In Admiralty Bay (King George Island, South Shetland Islands), it is found at several locations within inner fiord setting at water depths between 33 and 165 m, but most commonly shallower than 100 m. In outer basins this foraminifer is absent. In the cores analysed, C. webbi sp. nov. is present in well-constrained sub-Recent horizons that are clearly related to climate warming and deglaciation. These horizons represent a diachronous facies marker rather than a single stratigraphic layer. Cribroelphidium webbi sp. nov. shows clear association with retreating tidewater glaciers, therefore it is an important sensitive glacier-proximal indicator. It appears that it shares similar ecologic affinities with Cribroelphidium excavatum clavatum, which is widely distributed throughout the Arctic.

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