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For Emperor penguins (Aptenodytes forsteri), huddling is the key to survival during the Antarctic winter. Penguins in a … huddle are packed so tightly that individual movements become impossible, reminiscent of a jamming transition in … compacted colloids. It is crucial, however…
Simultaneous effects of ocean acidification and temperature change in Antarctic environments warrant investigation as little is known about the synergistic consequences of these factors on Antarctic benthic species.
Effects of ocean acidification in conjunction with temperature change warrants investigation as little is known about potential interactive effects of these parameters on Antarctic benthic species.
The Antarctic has experienced major changes in temperature, wind speed and stratospheric ozone levels during the last 50 years. However until recently continental Antarctica appeared to be little impacted by climate warming, thus biological changes were predicted to be relatively slow.
The determination of the conservation status for a species at risk of extinction is based … largely upon consistent change in the population size. In long-lived species, such as seabirds…
Simulations of the ocean dynamics in the cavity under the Amery Ice Shelf, Antarctica, were carried out using a three-dimensional numerical ocean model. Two different boundary conditions were used to describe the open ocean barotropic exchange at the ice front.
Observations and modelling described by Becker and Fritts [Ann Geophys, 24, 1175-1188, 2006] suggests that wintertime planetary wave activity, and the gravity-wave filtering … associated with it…
In 2001 and 2003 small-scale acoustic surveys of Antarctic krill (Euphausia superba) distribution and abundance were conducted … offshore from an East Antarctic colony of Adelie penguins on Bechervaise Island (671350S, 621490E) that has been monitored for … 15 years.
The basis of using isotopic measurements to study trophic structure lies in documenting a regular and consistent pattern of isotopic enrichment with increasing trophic level. Nitrogen isotope ratios (δ 15N) in consumers become enriched in 15N by 3-4 % relative to their food…
In this talk we describe the intra- and inter-annual variability in the timing of breeding phenology over a 16 year period for the Adélie penguin (Pygoscelis adeliae) colony at Béchervaise Island, East Antarctica.
A 5 yr field experiment was carried out comparing the effects of Special Antarctic Blend (SAB) diesel, synthetic lubricant (Mobil 0W40), used synthetic lubricant (used Mobil 0W40) and a biodegradable lubricant (Titan GT1) on Antarctic benthic microbial communities.
The 2007 Antarctic ozone hole is reviewed from a variety of … perspectives, making use of various Australian data and analyses. The 2007 ozone hole was relatively modest, particularly … in comparison to that of 2006…
The distribution of Sphagnum cuspidatum has been subject to controversy. Although historically reported from all continents except Antarctica recent authors consider S. cuspidatum to be endemic to Europe and eastern North America.
Continuous high-resolution oxygen isotope measurements (¥ä18Oice) have been made along the … entire length of the Dome Summit South (DSS) ice core from Law Dome (LD), Antarctica, spanning the past 90ky.
Black carbon (BC), the primary light-absorbing aerosol in the atmosphere, is emitted by the incomplete combustion of biomass and fossil fuels affecting the radiative balance of the atmosphere. As a contributor to climate change, BC may rival greenhouse gases such as methane.
The Dome Summit South ice core from Law Dome, East Antarctica is 1200 m long and reveals an unusually high accumulation rate for Late Holocene precipitation (640 kg m2/a), dating to 90,000 years before present (BP) at its base.