4045 to 4056 of 14011 results
The cold tolerance mechanism of the Antarctic terrestrial mite Alaskozetes antarcticus (Michael) was investigated in cultured animals. Freezing is fatal in this species and winter survival occurs by means of […]
1. Determinations of live weight-specific oxygen consumption (metabolic rate) in adults of the Antarctic terrestrial mite Alaskozetes antarcticus (Michael) showed that starvation resulted in metabolic suppression. 2. Food materials were […]
The temperate cryptostigmatid mite Humerobates rostrolamellatus Grandjean tolerates temperatures below -20°C by supercooling. Glycerol is present in these animals after acclimation at 0°C. The significance of these findings is briefly […]
The Signy Island terrestrial reference sites epitomize unpolluted maritime Antarctic tundra. The extreme transition from the harsh Antarctic winter to the milder summer facilitates studies of the effects of freeze-thaw […]
During winter (1973), a very pure natural population of the diatom Navicula glaciei Van Heurck occurred in dense concentrations (up to 244 mg·m−2 chlorophyll a) in the sea ice at […]
The high-latitude atmosphere is a dynamic region with processes that respond to forcing from the Sun, magnetosphere, neutral atmosphere, and ionosphere. Historically, the dominance of magnetosphere–ionosphere interactions has motivated upper […]
Climate change at the Western Antarctic Peninsula (WAP) is predicted to cause major changes in phytoplankton community composition, however, detailed seasonal field data remain limited and it is largely unknown […]
The nitrogen stable isotopic composition in nitrate (δ15N-NO−3) measured in ice cores from low-snow-accumulation regions in East Antarctica has the potential to provide constraints on past ultraviolet (UV) radiation and […]