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Thin blood smears prepared from 125 South Polar skuas (Catharacta maccormicki) at breeding islands and feeding sites in the Vestfold Hills region of Antarctica between December 1999 and Janurary 2000 did not contain hematozoa.
The Wind-mode of the ERS Active Microwave Instrument [AMI] provides frequent measurements of the microwave backscatter of the Antarctic region in an almost continuous sequence which commenced in August 1991.
Monitoring of background atmospheric CO2 concentration in recent decades has revealed interannual growth rate variations (IAV) that are linked to the El Nino Southern Oscillation (ENSO). However, the nature of this link is not well understood.
Monitoring of background atmospheric CO2 concentration in recent decades has revealed interannual growth rate variations (IAV) that are linked to the El Nino Southern Oscillation (ENSO). However, the nature of this link is not well understood.
Subantarctic Southern Ocean surface waters in the austral summer and autumn are characterized by high concentrations of nitrate and phosphate but low concentrations of dissolved iron (Fe, ~0.05nM) and silicic acid (Si, <1µM).
To determine the foraging space of Emperor penguins Aptenodytes forsteri in winter 12 females from Auster colony (13 400 pairs) were equipped with satellite transmitters and time-depth recorders before departing on their 77 ± 8 d winter (June-August) foraging trip.
The RAPD technique (Random Amplified Polymorphic DNA) was used to assess the level of genetic diversity in Bryum pseudotriquetrum from Southern Victoria Land, Antarctica. Isolates were collected from two transects…
A detailed study was made of the extent of genetic variation within populations of two moss species, Bryum argenteum and Henediella heimii, from the Garwood Valley in Southern Victoria Land, Antarctica. RAPD technology was used to analyse over 30 clumps of each species…
Weddell seals (Leptonychotes weddelli) are the most southerly breeding of all mammals and breed on the fast-ice around the shores of the Antarctic continent. Weddell seals display a polygynous mating system, with operational sex ratios (OSR) ranging from 3:1 to 8:1.
For a copy of the Abstract, please contact authors.
The diet composition of King penguins Aptenodytes patagonicus at Heard Island (53°05S; 73°30E) was determined from stomach contents of 98 adults captured as they returned to the island throughout 1992. During the two growth seasons…
The RAPD technique (Random Amplified Polymorphic DNA) was used to assess the level of genetic diversity in Bryum argenteum from Ross Island and Southern Victoria Land, Antarctica. Samples were collected from three transects at different sites…
Beaufort Island, Ross Sea, Antarctica, is a Specially Protected Area originally designated on account of, and still supporting, a small winter sea ice breeding colony of Emperor penguins, a large summer breeding colony of Adélie penguins, and several colonies of Skuas. A substantial area of moss…
We are using molecular genetics techniques to investigate (a) the overall level of genetic diversity in Antarctic mosses, (b) the spatial arrangement and mutation levels within populations, (c) their taxonomic relationships and origins, (d) the effect of climate change on mutation levels, and (e)…
Slant column amounts of NO2 have been measured at twilight at MacQuarie Island using differential absorption spectroscopy. The data show a large seasonal cycle and diurnal variations. These changes are dominated by photochemistry.