The retreat of Jones Ice Shelf, Antarctic Peninsula
In recent decades, several ice shelves along the Antarctic Peninsula have diminished in size as a result of climate warming. Using aerial photographic, satellite and survey data we document a […]
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Read more of: The retreat of Jones Ice Shelf, Antarctic Peninsula
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Anomalous winter hydroxyl temperatures at 69°S during 2002 in a multiyear context
Read more of: Anomalous winter hydroxyl temperatures at 69°S during 2002 in a multiyear contextHydroxyl airglow temperatures measured over Davis station, Antarctica (68°S, 78°E) in 2002 are compared to an 8-year climatological mean. The 2002 winter average temperature was 5.1 ± 0.8K warmer than […]
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Biological invasions in the Antarctic: extent, impacts and implications
Read more of: Biological invasions in the Antarctic: extent, impacts and implicationsAlien microbes, fungi, plants and animals occur on most of the sub-Antarctic islands and some parts of the Antarctic continent. These have arrived over approximately the last two centuries, coincident […]
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Reproductive biology and biochemical composition of the brooding echinoid Amphipneustes lorioli on the Antarctic continental shelf
Read more of: Reproductive biology and biochemical composition of the brooding echinoid Amphipneustes lorioli on the Antarctic continental shelfThe bathyal West Antarctic Peninsula (WAP) shelf experiences intense seasonal variability in primary production, with summer phytoplankton blooms yielding intense pulse of phytodetritus to shelf sediments. Echinoderms form a conspicuous […]
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A new species of Placopsis (Agyriaceae: Ascomycota) from Antarctica
Read more of: A new species of Placopsis (Agyriaceae: Ascomycota) from AntarcticaPlacopsis antarctica, which is apparently endemic to antarctic regions south of lat. 60°S (South Orkney Is, South Shetland Is and the Antarctic Peninsula), is described. Details of its morphology, anatomy, […]
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Description of Vahlkampfia signyensis n. sp. (Heterolobosea), based on morphological, ultrastructural and molecular characteristics
Read more of: Description of Vahlkampfia signyensis n. sp. (Heterolobosea), based on morphological, ultrastructural and molecular characteristicsVahlkampfia signyensis n. sp. was isolated from two soil sites at Signy Island, South Orkney Islands, maritime Antarctic. Trophozoites of the species had a typical vahlkampfiid morphology, showed eruptive movement […]
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Calculation of pitch angle and energy diffusion coefficients with the PADIE code
Read more of: Calculation of pitch angle and energy diffusion coefficients with the PADIE codeWe present a new computer code (PADIE) that calculates fully relativistic quasi-linear pitch angle and energy diffusion coefficients for resonant wave-particle interactions in a magnetized plasma. Unlike previous codes, the […]
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Do seasonal changes in metabolic rate facilitate changes in diving behaviour?
Read more of: Do seasonal changes in metabolic rate facilitate changes in diving behaviour?Macaroni penguins were implanted with data loggers to record heart rate (fH), abdominal temperature (Tab) and diving depth during their pre-moult trip (summer) and winter migration. The penguins showed substantial […]
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Behavioural flexibility during year-round foraging in macaroni penguins
Read more of: Behavioural flexibility during year-round foraging in macaroni penguinsPenguins are major consumers in the marine environment. However, like many top predators, very little information exists on their foraging behaviour outside the breeding season. We investigated the foraging behaviour […]
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The climate of the future: clues from three million years ago
Read more of: The climate of the future: clues from three million years agoIn the eighteenth century, James Hutton came up with a theory that revolutionized the science of geology, ‘The present is a key to the past’. But could the past also […]
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