8605 to 8616 of 13722 results
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Exploration of a simple model for ice ages
Read more of: Exploration of a simple model for ice agesWe argue that, while Milanković variations in solar radiation undoubtedly have a major influence on the timing of the Quaternary ice ages, they are partly incidental to their underlying causes. […]
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The Nabitah fault zone, Saudi Arabia: A Pan-African suture separating juvenile oceanic arcs
Read more of: The Nabitah fault zone, Saudi Arabia: A Pan-African suture separating juvenile oceanic arcsU-Pb zircon ion-microprobe geochronology, whole rock geochemistry and feldspar Pb and Sm-Nd isotopic analyses carried out on granitoid rocks along a transect across the Nabitah fault zone suggest that it […]
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Antarctic Thresholds – Ecosystem Resilience and Adaptation” (AnT-ERA), a new SCAR-biology programme
Read more of: Antarctic Thresholds – Ecosystem Resilience and Adaptation” (AnT-ERA), a new SCAR-biology programmeStresses on Antarctic ecosystems result from environmental change, including extreme events, and from (other) human impacts. Consequently, Antarctic habitats are changing, some at a rapid pace while others are relatively […]
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Emperors in hiding: When ice-breakers and satellites complement each other in Antarctic exploration
Read more of: Emperors in hiding: When ice-breakers and satellites complement each other in Antarctic explorationEvaluating the demographic trends of marine top predators is critical to understanding the processes involved in the ongoing rapid changes in Antarctic ecosystems. However, the remoteness and logistical complexity of […]
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Influence of fasting during moult on the faecal microbiota of penguins
Read more of: Influence of fasting during moult on the faecal microbiota of penguinsMany seabirds including penguins are adapted to long periods of fasting, particularly during parts of the reproductive cycle and during moult. However, the influence of fasting on the gastrointestinal (GI) […]
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An assessment of deep hot-water drilling as a means to undertake direct measurement and sampling of Antarctic subglacial lakes: experience and lessons learned from the Lake Ellsworth field season 2012/13
Read more of: An assessment of deep hot-water drilling as a means to undertake direct measurement and sampling of Antarctic subglacial lakes: experience and lessons learned from the Lake Ellsworth field season 2012/13In the early hours of 25 December 2012, an attempt to explore Subglacial Lake Ellsworth, West Antarctica, using a specially designed hot-water drill, was halted. This UK project, involving several […]
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Inter-annual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
Read more of: Inter-annual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems, maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall structure and functioning […]
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Precipitation pathways for five new ice core sites in Ellsworth Land, West Antarctica
Read more of: Precipitation pathways for five new ice core sites in Ellsworth Land, West AntarcticaIce cores provide a wealth of information about past climate and atmospheric circulation however a good understanding of the precipitation patterns, potential source regions and transport pathways is essential in […]
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Cyclone-induced rapid creation of extreme Antarctic sea ice conditions
Read more of: Cyclone-induced rapid creation of extreme Antarctic sea ice conditionsTwo polar vessels, Akademik Shokalskiy and Xuelong, were trapped by thick sea ice in the Antarctic coastal region just to the west of 144°E and between 66.5°S and 67°S in […]