6181 to 6192 of 14011 results
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Annual variation in the timing of reproduction in Antarctic fur seals,Arctocephalus gazella, at Bird Island, South Georgia
Read more of: Annual variation in the timing of reproduction in Antarctic fur seals,Arctocephalus gazella, at Bird Island, South GeorgiaThe arrival of Antarctic fur seals at a breeding beach on Bird Island, South Georgia, was studied over five consecutive breeding seasons, 1983 to 1987. Experienced bulls arrived first and […]
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Seasonal and temporal variations of field-aligned currents and ground magnetic deflections during substorms
Read more of: Seasonal and temporal variations of field-aligned currents and ground magnetic deflections during substormsField‐aligned currents (FACs), also known as Birkeland currents, are the agents by which energy and momentum are transferred to the ionosphere from the magnetosphere and solar wind. This coupling is […]
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Statistical properties of plasmaspheric hiss from Van Allen Probes observations
Read more of: Statistical properties of plasmaspheric hiss from Van Allen Probes observationsVan Allen Probes observations are used to statistically investigate plasmaspheric hiss wave properties. This analysis shows that the wave normal direction of plasmaspheric hiss is predominantly field aligned at larger […]
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Geographic variation in the foraging behaviour of South American fur seals
Read more of: Geographic variation in the foraging behaviour of South American fur sealsThe implicit assumption of many ecological studies is that animal behaviour and resource use are geographically uniform. However, central place foraging species often have geographically isolated breeding colonies that are […]
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High benthic methane flux in low sulfate oceans: Evidence from carbon isotopes in Late Cretaceous Antarctic bivalves
Read more of: High benthic methane flux in low sulfate oceans: Evidence from carbon isotopes in Late Cretaceous Antarctic bivalvesThe shell material of marine benthic bivalves provides a sensitive archive of water chemistry immediately above the sediment–water interface, which in turn is affected by sedimentary geochemistry and redox reactions. […]
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The South Sandwich Islands – a community of meta-populations across all trophic levels
Read more of: The South Sandwich Islands – a community of meta-populations across all trophic levelsThe South Sandwich Islands are a relatively pristine volcanic archipelago in the Southern Ocean that experience high levels of natural disturbance. The archipelago spans the biological transition between the sub-Antarctic […]
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Global model of plasmaspheric hiss from multiple satellite observations
Read more of: Global model of plasmaspheric hiss from multiple satellite observationsWe present a global model of plasmaspheric hiss, using data from eight satellites, extending the coverage and improving the statistics of existing models. We use geomagnetic activity dependent templates to […]
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Microplastics in marine sediments near Rothera Research Station, Antarctica
Read more of: Microplastics in marine sediments near Rothera Research Station, AntarcticaAntarctica and surrounding waters are often considered pristine, but may be subject to local pollution from tourism, fishing and governmental research programme activities. In particular, the quantification of microplastic pollution […]
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Variability of the Ross Gyre, Southern Ocean: drivers and responses revealed by satellite altimetry
Read more of: Variability of the Ross Gyre, Southern Ocean: drivers and responses revealed by satellite altimetryYear‐round variability in the Ross Gyre (RG), Antarctica, during 2011‐2015, is derived using radar altimetry. The RG is characterized by a bounded recirculating component, and a westward ‘throughflow’ to the […]