8305 to 8316 of 13838 results
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Antarctic palynology and palaeoclimate – a review
Read more of: Antarctic palynology and palaeoclimate – a reviewThe first exciting clues that Antarctica had not always been ice-covered were the leaf fossils of Glossopteris plants that Scott’s party brought back from the Beardmore Glacier region in 1912. […]
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Not poles apart: Antarctic soil fungal communities show similarities to those of the distant Arctic
Read more of: Not poles apart: Antarctic soil fungal communities show similarities to those of the distant ArcticAntarctica’s extreme environment and geographical isolation offers a useful platform for testing the relative roles of environmental selection and dispersal barriers influencing fungal communities. The former process should lead to […]
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Measurement of ammonia emissions from temperate and sub-polar seabird colonies
Read more of: Measurement of ammonia emissions from temperate and sub-polar seabird coloniesThe chemical breakdown of marine derived reactive nitrogen transported to the land as seabird guano represents a significant source of ammonia (NH3) in areas far from other NH3 sources. Measurements […]
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Key Questions in Marine Megafauna Movement Ecology
Read more of: Key Questions in Marine Megafauna Movement EcologyIt is a golden age for animal movement studies and so an opportune time to assess priorities for future work. We assembled 40 experts to identify key questions in this […]
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Impact of melt water on high latitude early Last Interglacial climate
Read more of: Impact of melt water on high latitude early Last Interglacial climateRecent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the […]
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Population structure and phylogeography of the Gentoo Penguin (Pygoscelis papua) across the Scotia Arc
Read more of: Population structure and phylogeography of the Gentoo Penguin (Pygoscelis papua) across the Scotia ArcClimate change, fisheries’ pressure on penguin prey, and direct human disturbance of wildlife have all been implicated in causing large shifts in the abundance and distribution of penguins in the […]
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Biogeography of bacteriophages at four hydrothermal vent sites in the Antarctic based on gp23 sequence diversity
Read more of: Biogeography of bacteriophages at four hydrothermal vent sites in the Antarctic based on gp23 sequence diversityIn this study, which was carried out within the ChEsSO consortium project (Chemosynthetically driven ecosystems south of the Polar Front), we sampled two hydrothermal vent sites on the East Scotia […]
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Connectivity in the cold: the comparative population genetics of vent-endemic fauna in the Scotia Sea, Southern Ocean
Read more of: Connectivity in the cold: the comparative population genetics of vent-endemic fauna in the Scotia Sea, Southern OceanWe report the first comparative population genetics study for vent fauna in the Southern Ocean using cytochrome C oxidase I and microsatellite markers. Three species are examined: the kiwaid squat […]
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Glacial lake drainage in Patagonia (13-8 kyr) and response of the adjacent Pacific Ocean
Read more of: Glacial lake drainage in Patagonia (13-8 kyr) and response of the adjacent Pacific OceanLarge freshwater lakes formed in North America and Europe during deglaciation following the Last Glacial Maximum. Rapid drainage of these lakes into the Oceans resulted in abrupt perturbations in climate, […]
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Macrofossil evidence for a rapid and severe Cretaceous-Paleogene mass extinction in Antarctica
Read more of: Macrofossil evidence for a rapid and severe Cretaceous-Paleogene mass extinction in AntarcticaDebate continues about the nature of the Cretaceous–Paleogene (K–Pg) mass extinction event. An abrupt crisis triggered by a bolide impact contrasts with ideas of a more gradual extinction involving flood […]
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Ice stream retreat following the LGM and onset of the west Greenland current in Uummannaq Trough, west Greenland
Read more of: Ice stream retreat following the LGM and onset of the west Greenland current in Uummannaq Trough, west GreenlandThe deglacial history and oceanography of Uummannaq Trough, central West Greenland continental shelf, was investigated using foraminiferal, sedimentological, and bathymetric records together with a radiocarbon chronology, providing a timeline for […]