Rapid cold hardening: a gut feeling
This study examined the rate of cold hardening of a field population of Antarctic springtails and the effect of eating food with particular levels of ice nucleating activity on the […]
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Read more of: Rapid cold hardening: a gut feeling
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Survival of Heleomyza borealis (Diptera, Heleomyzidae) larvae down to -60oC
Read more of: Survival of Heleomyza borealis (Diptera, Heleomyzidae) larvae down to -60oCHeleomyza borealis Boh. (Diptera, Heleomyzidae) overwinters as larvae in Arctic habitats, where they may experience winter temperatures below − 15°C. The larvae freeze at c.− 7°C but in acclimation experiments 80% survived […]
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The effect of feeding on specific soil algae on the cold-hardiness of two Antarctic micro-arthropods (Alaskozetes antarcticus and Cryptopygus antarcticus)
Read more of: The effect of feeding on specific soil algae on the cold-hardiness of two Antarctic micro-arthropods (Alaskozetes antarcticus and Cryptopygus antarcticus)The effect of consuming terrestrial algae on the cold tolerance of two Antarctic micro-arthropods was examined. From the results of preferential feeding experiments, seven species of Antarctic terrestrial micro-algae were […]
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Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
Read more of: Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locationsWe develop a new approach to quantifying habitat use within the foraging ranges of satellite-tracked seabirds. We applied kernel estimation techniques to 167 days (3738 locations) of data from Black-browed […]
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History of the atmosphere from ice cores
Read more of: History of the atmosphere from ice coresIce cores are an excellent way of finding out how the atmosphere has changed because climate signals and many forcing factors for climate are present in the same core. Their […]
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Detection and attribution of Antarctic climate change
Read more of: Detection and attribution of Antarctic climate changeThe current understanding of climate changes that have occurred in the last 50 years over Antarctica is presented with a focus on: (i) a summer warming of the eastern Antarctic […]
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Efficient flowline simulations of ice-shelf/ocean interactions: Sensitivity studies with a fully coupled model
Read more of: Efficient flowline simulations of ice-shelf/ocean interactions: Sensitivity studies with a fully coupled modelThermodynamic flowline and plume models for the ice-shelf/ocean system simplify the ice and ocean dynamics sufficiently to allow extensive exploration of parameters affecting ice-sheet stability while including key physical processes. […]
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East Antarctica’s Achilles heel
Read more of: East Antarctica’s Achilles heelThe East Antarctic ice sheet is believed to be Earth’s most stable ice sheet. Changes in geochemical composition of offshore sediments suggest that its margin repeatedly retreated by at least […]
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Corticosterone mediated costs of reproduction link current to future breeding
Read more of: Corticosterone mediated costs of reproduction link current to future breedingLife-history theory predicts that costs are associated with reproduction. One possible mediator of costs involves the secretion of glucocorticoid hormones, which in birds can be measured in feathers grown during […]
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The search for seismic signatures of movement at the glacier bed in a polythermal valley glacier
Read more of: The search for seismic signatures of movement at the glacier bed in a polythermal valley glacierA passive seismology experiment was conducted across the main overdeepening of Storglaciaren in the Tarfala valley, northern Sweden, to investigate the spatial and temporal distribution of basal microseismic waveforms in […]