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The susceptibility of three East Antarctic moss species to UV-B radiation was examined by measuring accumulation of cyclobutane pyrimidine dimers under natural sunlight during the austral summer season of 2002/03.
Living in a frozen desert, Antarctic mosses are characterised by the ability to survive desiccation and can tolerate multiple desiccation-rehydration events over the summer growing season. As a result of recent ozone depletion…
Ice-core records of methanesulphonic acid (MSA) provide a potentially powerful tool for … producing proxy records of sea ice, a critical but poorly understood component of the Earth’s climate … system. However, MSA is able to diffuse through solid ice…
When ice sheets melt, and reduce the load on the surface of the Earth, the … land areas beneath them bounce back up. New, accurate observations are … needed to investigate this uplift and its implications effectively.
A newsurfacewave seismic tomography model of Australia is presented which provides a means of investigating … the lithospheric structure beneath the Proterozoic regions in the west, north and centre of the … continent with improved resolution and reliability.
This paper traces the Soviet responses to initiatives of international scientific institutions for collaborative … research in the Antarctic dating from the International Geophysical Year (IGY) through to the formation of the Special … Committee for Antarctic Research (SCAR)…
The Network for the Detection of Mesopause Change (NDMC) is a global program with the … mission to promote international cooperation among research groups active in studying the … mesopause region (80-100km) with the goal of early identification of changing climate signals.
Adding carbon dioxide (CO2) to the ocean alters the carbonate chemistry and lowers pH, making surface waters more acidic and decreasing the carbonate ions available to calcifiers for calcite and aragonite production.
Anthropogenic carbon dioxide has been accumulating in the … oceans, lowering both the concentration of carbonate ions … and the pH (ref. 1), resulting in the acidification of sea … water.
Zooplankton and benthic invertebrates are important components of polar lakes and often form the highest trophic level in the aquatic food web. Their biodiversity decreases towards high latitudes…
Paratrochammina minutissima n. sp. is described from … Abraxas and Ace Lakes in the Vestfold Hills, East … Antarctica. The species is characterized by very small size … (120 mm diameter), 4K chambers in the final whorl…
Evidence is provided from a sediment core from saline Abraxas Lake, Vestfold Hills, that indicates that the lake existed through the Last Glacial Maximum. It can therefore be concluded that at least part of the Vestfold Hills also remained ice-free through the Last Glacial Maximum…
Bacterial community structures in soils collected … from eight sites around Casey Station, Antarctica, were … investigated using denaturing gradient gel electrophoresis … (DGGE) of ampliWed 16S rRNA gene fragments.