12073 to 12084 of 14026 results
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Saturation characteristic of electromagnetic ion cyclotron waves
Read more of: Saturation characteristic of electromagnetic ion cyclotron wavesElectromagnetic ion cyclotron (EMIC) waves are an integral component of the Earth’s dynamic space environment. In order to quantify their effect, it is necessary to know their saturation amplitude, but […]
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Changes in micronutrient supply to the surface Southern Ocean (Atlantic Sector) across the glacial termination
Read more of: Changes in micronutrient supply to the surface Southern Ocean (Atlantic Sector) across the glacial terminationMajor deepwater masses upwell and reach the surface in the Southern Ocean, forming an important conduit supplying nutrients and micronutrients to the surface and playing a key role in the […]
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Overfishing of small pelagic fishes increases trophic overlap between immature and mature striped dolphins in the Mediterranean Sea
Read more of: Overfishing of small pelagic fishes increases trophic overlap between immature and mature striped dolphins in the Mediterranean SeaThe interactions among diet, ecology, physiology, and biochemistry affect N and C stable isotope signatures in animal tissues. Here, we examined if ecological segregation among animals in relation to sex […]
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Potential seaways across West Antarctica
Read more of: Potential seaways across West AntarcticaThe West Antarctic ice sheet (WAIS) has long been considered vulnerable to rapid retreat and today parts are rapidly losing ice. Projection of future change in WAIS is, however, hampered […]
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Contemporary and historical separation of transequatorial migration between genetically distinct seabird populations
Read more of: Contemporary and historical separation of transequatorial migration between genetically distinct seabird populationsPelagic seabirds are highly mobile, reducing the likelihood of allopatric speciation where disruption of gene flow between populations is caused by physically insurmountable, extrinsic barriers. Spatial segregation during the non-breeding […]
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Holocene stability of the Amundsen-Weddell ice divide, West Antarctica
Read more of: Holocene stability of the Amundsen-Weddell ice divide, West AntarcticaWe analyze Holocene ice flow using global positioning system and radio-echo sounding data acquired near the Amundsen-Weddell ice divide, between Pine Island Glacier and the Institute Ice Stream, West Antarctica. […]
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Phase transitions of wax esters adjust buoyancy in diapausing Calanoides acutus
Read more of: Phase transitions of wax esters adjust buoyancy in diapausing Calanoides acutusWe study the composition and biophysical properties of wax esters extracted from the Antarctic copepod, Calanoides acutus, to explore if these factors adjust buoyancy in diapausing copepods. Levels of wax […]
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Seabed foraging by Antarctic krill: Implications for stock assessment, bentho-pelagic coupling, and the vertical transfer of iron
Read more of: Seabed foraging by Antarctic krill: Implications for stock assessment, bentho-pelagic coupling, and the vertical transfer of ironA compilation of more than 30 studies shows that adult Antarctic krill (Euphausia superba) may frequent benthic habitats year-round, in shelf as well as oceanic waters and throughout their circumpolar […]
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Crenarchaea and phytoplankton coupling in sedimentary archives: Common trigger or metabolic dependence?
Read more of: Crenarchaea and phytoplankton coupling in sedimentary archives: Common trigger or metabolic dependence?The concentrations of chlorins (chlorophyll transformation products indicative of phytoplankton production) and crenarchaeol (a marker for Crenarchaea abundance) are significantly positively correlated (Spearman’s rank correlation coefficient r(s) > 0.75) in […]
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The multi-seasonal NOy budget in coastal Antarctica and its link with surface snow and ice core nitrate: results from the CHABLIS campaign
Read more of: The multi-seasonal NOy budget in coastal Antarctica and its link with surface snow and ice core nitrate: results from the CHABLIS campaignMeasurements of a suite of individual NOy components were carried out at Halley station in coastal Antarctica as part of the CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and […]
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Nitric acid enhancements in the mesosphere during the January 2005 and December 2006 solar proton events
Read more of: Nitric acid enhancements in the mesosphere during the January 2005 and December 2006 solar proton eventsWe investigate enhancements of mesospheric nitric acid (HNO(3)) in the Northern Hemisphere polar night regions during the January 2005 and December 2006 solar proton events (SPEs). The enhancements are caused […]