Publications

7309 to 7320 of 13980 results

1. Atmospheric methane variability: Centennial-scale signals in the Last Glacial Period

   In order to understand atmospheric methane (CH4) biogeochemistry now and in the future, we must apprehend its natural variability, without anthropogenic influence. Samples of ancient air trapped within ice cores […]

   Read more of: Atmospheric methane variability: Centennial-scale signals in the Last Glacial Period

2. Population genetics of three sympatric springtail species (Hexapoda: Collembola) from the South Shetland Islands: evidence for a common biogeographic pattern

   Three sympatric springtail species, from the South Shetland Islands archipelago in the maritime Antarctic, are analysed here in a common biogeographic and evolutionary framework. This study was designed to compare […]

   Read more of: Population genetics of three sympatric springtail species (Hexapoda: Collembola) from the South Shetland Islands: evidence for a common biogeographic pattern

3. Multi-colony tracking reveals spatio-temporal variation in carry-over effects between breeding success and winter movements in a pelagic seabird

   Carry-over effects, whereby events in one season have consequences in subsequent seasons, have important demographic implications. Although most studies examine carry-over effects across 2 seasons in single populations, the effects […]

   Read more of: Multi-colony tracking reveals spatio-temporal variation in carry-over effects between breeding success and winter movements in a pelagic seabird

4. A new heat flux model for the Antarctic Peninsula incorporating spatially variable upper crustal radiogenic heat production

   A new method for modelling heat flux shows the upper crust contributes up to 70% of the Antarctic Peninsula’s subglacial heat flux, and that heat flux values are more variable […]

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5. Identification of C 25 highly branched isoprenoid (HBI) alkenes in diatoms of the genus Rhizosolenia in polar and sub-polar marine phytoplankton.

   We report the identification of a range of C25 highly branched isoprenoid (HBI) alkenes and certain sterols in filtered phytoplankton samples obtained from western Svalbard (Arctic) and near South Georgia […]

   Read more of: Identification of C 25 highly branched isoprenoid (HBI) alkenes in diatoms of the genus Rhizosolenia in polar and sub-polar marine phytoplankton.

6. Conservation and management of Antarctic silverfish Pleuragramma Antarctica populations and habitats

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7. Using super-high resolution satellite imagery to census threatened albatrosses

   This study is the first to utilize 30-cm resolution imagery from the WorldView-3 (WV-3) satellite to count wildlife directly. We test the accuracy of the satellite method for directly counting […]

   Read more of: Using super-high resolution satellite imagery to census threatened albatrosses

8. Subglacial sediment pathways and deglacial chronology of the northern Barents Sea Ice Sheet

   New information is presented on the configuration of the northern Barents Sea Ice Sheet (BSIS) during the last glacial and deglaciation (21–11.5 ka). The glacial dynamics of the BSIS that […]

   Read more of: Subglacial sediment pathways and deglacial chronology of the northern Barents Sea Ice Sheet

9. How accurate are estimates of glacier ice thickness? Results from ITMIX, the Ice Thickness Models Intercomparison eXperiment

   Knowledge of the ice thickness distribution of glaciers and ice caps is an important prerequisite for many glaciological and hydrological investigations. A wealth of approaches has recently been presented for […]

   Read more of: How accurate are estimates of glacier ice thickness? Results from ITMIX, the Ice Thickness Models Intercomparison eXperiment

10. Multi-model study of mercury dispersion in the atmosphere: atmospheric processes and model evaluation

    Current understanding of mercury (Hg) behavior in the atmosphere contains significant gaps. Some key characteristics of Hg processes, including anthropogenic and geogenic emissions, atmospheric chemistry, and air–surface exchange, are still […]

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11. Multifrequency Radar Imagery and Characterization of Hazardous and Noxious Substances at Sea

    The increase in maritime traffic, particularly the transport of hazardous and noxious substances (HNSs), requires advanced methods of identification and characterization in environmental chemical spills. Knowledge about HNS monitoring using […]

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12. Using globally threatened pelagic birds to identify priority sites for marine conservation in the South Atlantic Ocean

    The Convention on Biological Diversity aspires to designate 10% of the global oceans as Marine Protected Areas (MPAs), but so far, few MPAs protect pelagic species in the high seas. […]

    Read more of: Using globally threatened pelagic birds to identify priority sites for marine conservation in the South Atlantic Ocean