Location Dictates Snow Aerodynamic Roughness
We conducted an experiment comparing wind speeds and aerodynamic roughness length (z0) values over three snow surface conditions, including a flat smooth surface, a wavy smooth surface, and a wavy […]
1309 to 1320 of 14129 results
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Read more of: Location Dictates Snow Aerodynamic Roughness
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Testing the resilience, physiological plasticity and mechanisms underlying upper temperature limits of Antarctic marine ecto-therms
Read more of: Testing the resilience, physiological plasticity and mechanisms underlying upper temperature limits of Antarctic marine ecto-thermsAntarctic marine ectotherms live in the constant cold and are characterised by limited resilience to elevated temperature. Here we tested three of the central paradigms underlying this resilience. Firstly, we […]
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Lessons learned from shallow subglacial bedrock drilling campaigns in Antarctica
Read more of: Lessons learned from shallow subglacial bedrock drilling campaigns in AntarcticaWe review successes and challenges from five recent subglacial bedrock drilling campaigns intended to find evidence for Antarctic Ice Sheet retreat during warm periods in the geologic past. Insights into […]
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The demise of large tropical brachiopods and the Mesozoic Marine Revolution
Read more of: The demise of large tropical brachiopods and the Mesozoic Marine RevolutionChanges in predator–prey interactions are often implicated as drivers of major evolutionary change. A prominent example is the dramatic changes in shallow marine assemblages during the Mesozoic Marine Revolution (MMR) […]
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A temporal control on the isotopic compositions of the Antarctic Peninsula arc
Read more of: A temporal control on the isotopic compositions of the Antarctic Peninsula arcRadiogenic isotopic compositions of arc magmas are a key tool for studying active margin evolution. They have two isotopic end-members: melts formed mostly from juvenile asthenosphere and melts sourced from […]
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Evolution of Antarctic Sea Ice Ahead of the Record Low Annual Maximum Extent in September 2023
Read more of: Evolution of Antarctic Sea Ice Ahead of the Record Low Annual Maximum Extent in September 2023The 2023 Antarctic sea ice extent (SIE) maximum on 7 September was the lowest annual maximum in the satellite era (16.98 × 106 km2), with the largest contributions to the […]
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Circumpolar deep water upwelling is a primary source of 10Be in Antarctic continental shelf sediments
Read more of: Circumpolar deep water upwelling is a primary source of 10Be in Antarctic continental shelf sedimentsBeryllium-10 (10Be) is proposed to be a potential proxy for investigating ice shelf presence and absence, or meltwater discharge in coastal polar environments. However, the sources and distribution of atmospherically […]
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Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica)
Read more of: Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica)It is generally acknowledged that microplastic pollutants are prevalent in ocean waters and sediments across a range of tropical, temperate, subpolar, and polar regions. The waters surrounding King George Island […]
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Diversity and enzymatic, biosurfactant and phytotoxic activities of culturable Ascomycota fungi present in marine sediments obtained near the South Shetland Islands, maritime Antarctica
Read more of: Diversity and enzymatic, biosurfactant and phytotoxic activities of culturable Ascomycota fungi present in marine sediments obtained near the South Shetland Islands, maritime AntarcticaWe studied the culturable fungal community recovered from deep marine sediments in the maritime Antarctic, and assessed their capabilities to produce exoenzymes, emulsifiers and metabolites with phytotoxic activity. Sixty-eight Ascomycota […]
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No evidence for a role of MHC class II genotype in the chemical encoding of heterozygosity and relatedness in Antarctic fur seals
Read more of: No evidence for a role of MHC class II genotype in the chemical encoding of heterozygosity and relatedness in Antarctic fur sealsDespite decades of research, surprisingly little is known about the mechanism(s) by which an individual’s genotype is encoded in odour. Many studies have focused on the role of the major […]
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Assessing aerial biodiversity over Keller Peninsula, King George Island, maritime Antarctica, using DNA metabarcoding
Read more of: Assessing aerial biodiversity over Keller Peninsula, King George Island, maritime Antarctica, using DNA metabarcodingAntarctic ice-free areas are dominated by wind-dispersed organisms. However, which organisms arrive and circulate in Antarctica and how remain poorly understood. Due to their proximity to South America and less […]