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In most species daily and seasonal changes in the light-dark cycle are the most important synchronisers (zeitgebers) of daily and seasonal rhythms. In humans only bright light (2500 lux) appears […]
Six working groups were set up at the joint IUCN/SCAR Symposium on the scientific requirements for Antarctic conservation. These were charged with (i) identifying gaps in the scientific understanding of […]
James Cook in his voyage of 1774–1775 is generally credited with the discovery of the Antarctic. He was soon followed by fur sealers who by the end of the first […]
Overwintering Delia radicum (L.) in a field of swedes (Brassica napus L.) near Ascot, Berks., England, were exposed to soil temperatures below 10°C on 176 days from 21 October 1983 […]
Major glaciations or ‘ice ages’ are known to have affected the Earth’s surface over the past three billion years. The best preserved records of these glaciations are often found in […]
In a recent Article, Cristofari et al.1 discuss the impact that movements of the Antarctic Polar Front have had on historical king penguin populations, and make future projections based on […]