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Background: Prey DNA from diet samples can be used as a dietary marker; yet current methods for prey detection require a … priori diet knowledge and/or are designed ad hoc, limiting their scope. I present a general approach to detect diverse prey … in the feces or gut contents of predators.
Compared to temperate and tropical relatives, some high-latitude marine species are large-bodied, a phenomenon known as polar gigantism. A leading hypothesis on the physiological basis of gigantism … posits that, in polar water…
ABSTRACT. The PLATeau Observatory (PLATO) is an automated self-powered astrophysical observatory that … was deployed to Dome A, the highest point on the Antarctic plateau, in 2008 January.
Filter fractionated picophytoplankton from … Antarctic coastal waters (summer 2001) represented only … 7–33% of total phytoplankton, even though total stocks … were low (average Chl a = 0.32 g l¡1, range = 0.13– 1.03 g l¡1). Though all cells passed a 2 m Wlter…
We report on long-term surface elevation changes of the central Amery Ice Shelf … (AIS) by comparing elevation records spanning 4 decades (1968–2007). We use elevation … records acquired with the following methods: optical leveling (1968–1969); ERS … radar altimetry (1992–2003); GPS (1995–2006)…
Emperor penguins Aptenodytes forsteri are endemic to Antarctica. Their breeding colonies are located … in the coastal areas of the continent. The precise number of breeding locations is uncertain.
DNA-based techniques have proven useful for defining trophic links in a variety of … ecosystems and recently developed sequencing technologies provide new opportunities … for dietary studies. We investigated the diet of Australian fur seals (Arctocephalus pusillus … doriferus)…
We present a computational model of the largescale … cumulative light exposure of sea ice in the Southern … Ocean off East Antarctica (30E–150E). The model uses … remotely sensed or modelled sea ice concentration, snow … depth over sea ice, and solar irradiance data…
Source regions for the westward propagating zonal … wavenumber one and three components of the semidiurnal … tide observed in the summer mesosphere and lower … thermosphere over Antarctica are identified by correlating … local tidal variations with global planetary wave one activity … in the…
Satellite remote sensing observations of three break-up events in 2008 for the Wilkins Ice Shelf (28 February … to 6 March, 27 May to 31 May, and 28 June to mid-July) provide unprecedented detail of ice shelf calving … during rapid break-up.
Antarctic fast ice is of key climatic and ecological importance, yet its distribution and … variability are poorly understood. We present a detailed analysis of fast ice along the Adélie Land coast … (East Antarctica) using satellite data from 1992 to 1999.
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…
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 effects of starvation on ultrastructure of … digestive gland cells were studied in furcilia larvae of Antarctic … krill (Euphausia superba: hereafter krill). Under laboratory … conditions, larvae were starved for 0, 5, 10, 15, 20 … and 25 days…
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.