Effects of evolution on egg development time
Using a global data set on egg hatch times in zooplanktonic and nektonic ectotherms from marine waters, the combined effects of body size, temperature and life-history attributes on development times […]
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Read more of: Effects of evolution on egg development time
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Stress gradient damping of thermoviscous ice flow instabilities
Read more of: Stress gradient damping of thermoviscous ice flow instabilitiesCalculations of thermomechanically coupled ice sheet evolution using the shallow ice approximation exhibit the development of fingering instabilities in velocity, temperature, and thickness, which have been argued to resemble and […]
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Polar stratification: A critical view from the Southern Ocean
Read more of: Polar stratification: A critical view from the Southern OceanOceanic stratification represents an effective mechanism to reduce vertical mixing of the water column, thereby locking up carbon dioxide (CO2) in the deep sea and preventing air–sea exchange of CO2. […]
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Modelling Southern Ocean ecosystems: krill, the food-web, and the impacts of harvesting
Read more of: Modelling Southern Ocean ecosystems: krill, the food-web, and the impacts of harvestingThe ecosystem approach to fisheries recognises the interdependence between harvested species and other ecosystem components. It aims to account for the propagation of the effects of harvesting through the food-web. […]
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Habitat temperature and the temporal scaling of cold hardening in the high Arctic collembolan, Hypogastrura tullbergi (Schäffer)
Read more of: Habitat temperature and the temporal scaling of cold hardening in the high Arctic collembolan, Hypogastrura tullbergi (Schäffer)1. Cold tolerance is a fundamental adaptation of insects to high latitudes. Flexibility in the cold hardening process, in turn, provides a useful indicator of the extent to which polar […]
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Ecologically realistic modalities in arthropod supercooling point distributions
Read more of: Ecologically realistic modalities in arthropod supercooling point distributionsModality in the supercooling points of cold tolerant but freezing intolerant terrestrial arthropods has proved a pragmatically reliable means of distinguishing between summer and winter cold hardiness in such species. […]
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The role of the atmospheric circulation in the record minimum extent of open water in the Ross Sea in the 2003 austral summer
Read more of: The role of the atmospheric circulation in the record minimum extent of open water in the Ross Sea in the 2003 austral summerThe contribution of the atmospheric circulation to a record minimum extent of open water in the polar Ross Sea (RS) region in the 2003 austral summer is examined. Two major […]
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A new automated logging gateway to study the demographics of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia: testing the reliability of the system using radio telemetry
Read more of: A new automated logging gateway to study the demographics of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia: testing the reliability of the system using radio telemetryThe use of automated systems to record the identity of individual penguins and their movements in and out of a colony can provide an effective means of studying penguin biology […]
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Population abundance, structure and turnover estimates for leopard seals during winter dispersal combining tagging and photo-identification data
Read more of: Population abundance, structure and turnover estimates for leopard seals during winter dispersal combining tagging and photo-identification dataWinter dispersal in leopard seals is poorly understood because of its low density in most of its range. By combining photo-identification and tagging data from Bird Island, South Georgia, in […]
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One-to-one coupling of glacial climate variability in Greenland and Antarctica
Read more of: One-to-one coupling of glacial climate variability in Greenland and AntarcticaPrecise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth’s climate dynamics. For the last glacial period, ice core studies1, […]
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Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 2. High-latitude circulation and interplanetary magnetic field dependence
Read more of: Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 2. High-latitude circulation and interplanetary magnetic field dependenceWe analyze upper thermospheric (∼250 km) nighttime horizontal neutral wind patterns, during geomagnetically quiet (Kp < 3) conditions, over the following locations: South Pole (90°S), Halley (76°S, 27°W), Millstone Hill […]
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Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 1. Local time, latitudinal, seasonal, and solar cycle dependence
Read more of: Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 1. Local time, latitudinal, seasonal, and solar cycle dependenceWe analyze ground-based Fabry-Perot interferometer observations of upper thermospheric (∼250 km) horizontal neutral winds derived from Doppler shifts in the 630.0 nm (red line) nightglow. The winds were measured over […]