The last glacial termination was characterised by millennial-scale episodes of warming and cooling that appear offset between the hemispheres. It has been proposed that this bi-polar seesaw is the result of climate system feedbacks. A key debate, which remains unresolved…

Iron plays a pivotal role in regulating ocean primary productivity. Iron is supplied from diverse sources such as the atmosphere and the geosphere, and hence iron biogeochemical research has focused on identifying and quantifying such sources of "new" iron. However…

Polar marine invertebrates serve as bellwethers for species vulnerabilities in the face of changing climate at high latitudes of the Earth. Ocean acidification, warming/heatwaves, freshening, sea ice … retreat and productivity change are challenges for polar species.

The Southern Ocean, its ecosystem, and inhabitants are vulnerable to climate-mediated shifts in habitat conditions. These changes can affect marine predators in the long term through changes in the distribution, density, and quality of prey.

Following open, competitive Calls for Proposals in 2016/17, 2018/19 and 2019/20 a total of £144,058 GBP, £489,154 GBP and £129,955 GBP, respectively, were allocated from the IWC-Southern Ocean Research Partnership (IWC-SORP) Research Fund to 31 research projects in total. In addition…

The SCAR Krill Action Group (SKAG) provides a conduit for science to feed into the management of the Antarctic krill fishery, as well a more general forum to promote collaboration, help early career researchers, improve understanding of krill biology and ecology, and facilitate information exchange.

Ecosystem dynamics at the northwest Antarctic Peninsula are driven by interactions between physical and biological processes. For example, baleen whale populations are recovering from commercial harvesting against the backdrop of rapid climate change…

The availability of iron (Fe) to marine microbial communities is enhanced through complexation by ligands. In Fe limited environments, measuring the distribution and identifying the likely sources of ligands is therefore central to understanding the drivers of marine productivity.

The analysis of trophically complex mathematical ecosystem models is typically carried out … using numerical techniques because it is considered that the number and nonlinear nature of the equations … involved makes the use of analytic techniques virtually impossible. In particular…

Major stratospheric warmings (MSWs) are one of the most important phenomena of wintertime Arctic stratospheric variability. They consist of a warming of the Arctic stratosphere and a deceleration of the polar night jet…

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.

When resources are limited or patchy, a species may develop some degree of resource … partitioning to reduce intra-specific competition. Development of intra-specific resource partitioning … is more pronounced in species with clear phenotypic variation among individuals (e.g. age or sex).

1. In terrestrially breeding phocid seals males are significantly larger than females with their large … size conferring advantage in male–male competition, and increasing their ability to fast during the … breeding season, prolonging tenure and hence mating opportunities. 2.

Knowledge of penguin abundance at regional and circumpolar scales across the Southern Ocean is important … for the development of ecosystem models and to estimate prey consumption by penguins to assess potential competition … with fisheries’ operations.

1. Estimates of penguin abundance are important for developing marine ecosystem models and … assessing potential competition between penguins and fisheries operations. 2. Most shipboard surveys of penguins use strip transect (ST) or conventional distance sampling … (CDS)…

Remote acoustic moorings can be used to investigate baleen whales at vastly different temporal and spatial scales. On one end of the spectrum…

We report a long-term study of offspring sex … ratios in the cooperatively breeding superb fairy-wren … Malurus cyaneus. Detailed study of this species had … revealed a suite of potentially strong selection pressures … on the sex ratio. First…

Understanding and characterising the variability of ozone in the lower atmosphere is a key aspect of … regional and global climate assessment. Tropospheric ozone influences climate by absorbing outgoing … longwave terrestrial radiation, thereby acting as a greenhouse gas…

Growth conditions in Antarctica are extreme, and the few plants that can … grow there are exposed to a highly seasonal, rapidly variable and often … extreme climate. In recent decades, these plants have also been exposed to … increased levels of UV-B radiation (UV-BR)…

Fresnel transform meteor speed estimation is … investigated. A spectral based technique is developed allowing the transform to be applied at low temporal sampling rates. Simulations are used to compare meteoroid … speeds determined using the Fresnel transform and alternative techniques…