Publications database

Abstract The diet of pinnipeds is most commonly … inferred from morphologically diagnostic remains of prey … in their scats. Although this method can generate quantitative … estimates of diet simply, important prey types may not … always be detected.

Antarctic coastal polynyas are important areas of high sea ice production and dense water … formation, and thus their detection including an estimate of thin ice thickness is essential.

Snow depth on sea ice plays a critical role in the heat exchange between ocean and … atmosphere because of its thermal insulation, which is almost an order of magnitude … greater than the thermal insulation of sea ice. Furthermore…

Long-range forecasts of Antarctic sea ice are tery much in demand, not only because of … the potential importance of sea ice in global climate, but also for the practical purpose of … exploring the Antarctic continent. Unfortunately…

Thicknesses of sea ice and snow are key variables in ice-ocean-atmosphere interactions. Sea ice insulates the warm ocean from polar air and controls the heat exchange, which is … determined by its thickness. Also, sea ice thicknesses, together with sea ice extent…

Using steel pins inserted into growing moss … colonies near Casey Station, Wilkes Land, continental … Antarctica, we have measured the growth rate of three … moss species: Bryum pseudotriquetrum and Schistidium … antarctici over 20 years and Ceratodon purpureus … over 10 years.

Earthward injections of energetic ions and electrons … mark the onset of magnetospheric substorms. In the inner … magnetosphere (L4), the energetic ions drift westward … and the electrons eastward, thereby enhancing the equatorial … ring current.

Although huddling was shown to be the key by which emperor penguins (Aptenodytes forsteri) save energy and sustain their breeding fast … during the Antarctic winter, the intricacies of this social behavior have been poorly studied.

PILOT (Pathfnder for an International Large Optical Tele- … scope) is a proposed 2 m class optical/infrared telescope to be sited … at Dome C on the Antarctic plateau. Recent site testing results from … Dome C have shown remarkable ground level seeing, a large isoplanatic … angle…

The process of marking otherwise indistinguishable animals … as individuals (and following them through subsequent … phases of their lives) has been central to numerous advances … in animal ecology, management, and conservation (Caughley … and Gunn 1996). Indeed…

Abstract : Well sorted, fine lithic sandstone within the Drygalski Formation at Cape Lockyer on the … southern tip of Heard Island, preserves a diverse terrestrial palynoflora as well as marine diatoms and a few … foraminifera. A combination of these elements suggests a Late Miocene age (10–5 Ma).

Landforms of Marine Plain in the Vestfold Hills contrast with those of most in the Vestfold Hills. They include consistent land surfaces at 40+ m and 25 m, characteristics controlled by orientation of rock … features, and imprints of phases of glaciation…

Wandering Albatrosses (Diomedea exulans) are globally threatened owing to declines in populations, and the breeding population of Macquarie Island is particularly vulnerable as it comprises fewer than 20 breeding … pairs.

HPLC-pigment measurements, Production vs Irradiance and daily primary production experiments were carried out on the Kerguelen Plateau during the KEOPS cruise in January and February 2005. The respective contribution of three phytoplankton size classes, namely micro- (> twenty micron)…

Vertical temperature profiles collected by king penguins and elephant seals are used to map … oceanographic fronts south of Australia and New Zealand. Independently, the Southern … Ocean front locations are derived using satellite synoptic maps of sea surface height (SSH).

Reduced reproductive success in flipper-banded King Penguins compared to unbanded … penguins has been reported but differences in survival were not found. The “worst-case” survival analysis done by previous researchers assumed that death occurred at the beginning … of the tail chain of absences.

For the first time, the cyanobacterial diversity from microbial mats in lakes of … Eastern Antarctica was investigated using microscopic and molecular approaches. The present study assessed the biogeographical distribution of cyanobacteria in … Antarctica.

1. Microbial plankton dynamics in an ultra-oligotrophic epishelf lake (Beaver Lake, Antarctica) were investigated over an austral summer (December 2002 to January 2003). The aim was to characterise carbon cycling in an environmentally extreme lake. 2.

The depth distributions of eight groups of phytoplankton were determined along eight north-south transects between longitudes 80„aE and 150„aE, from 63„aS to the sea ice edge or beyond.

Concentrations of dimethylsulphoniopropionate (DMSP) were measured in seven pack ice cores from three sites in eastern Antarctica to determine their relation to algal pigments, nutrients (nitrate, silicate and phosphate) and bulk salinity. The algal groups haptophytes…

Methanesulphonic acid (MSA) measured along ice cores was largely used as a marker of … past marine biogenic activity because of it is formed by atmospheric oxidation of … dimethylsulphyde (DMS), emitted by metabolic processes of marine biota.

The efforts of Patterson and co-workers (Murozumi et al., 1969) to accurately measure Pb … concentrations in Greenland and Antarctic snow and ice produced the first reliable … determination of Pb pollution of the Earth’s polar ice sheets. Since then…