Climate change in the polar regions
The polar regions have experienced some remarkable environmental changes in recent decades, such as the Antarctic ozone hole, the loss of large amounts of sea ice from the Arctic Ocean […]
11281 to 11292 of 14037 results
-
Read more of: Climate change in the polar regions
-
-
Winter distribution and haul-out behaviour of female Antarctic fur seals from South Georgia
Read more of: Winter distribution and haul-out behaviour of female Antarctic fur seals from South GeorgiaTelemetry-based techniques have revealed the foraging patterns of many land breeding marine predators, especially during the summer breeding season. However, during the winter, when freed from the constraints of provisioning […]
-
A horizon scan of global conservation issues for 2012
Read more of: A horizon scan of global conservation issues for 2012Our aim in conducting annual horizon scans is to identify issues that, although currently receiving little attention, may be of increasing importance to the conservation of biological diversity in the […]
-
The 8200 yr BP cold event in stable isotope records from the North Atlantic region
Read more of: The 8200 yr BP cold event in stable isotope records from the North Atlantic regionAn abrupt cold event ca. 8200 cal. yr BP, is believed to have been caused by the catastrophic release of ice-dammed meltwater from Lake Agassiz and associated disruption of the […]
-
Late Quaternary sediments from deep-sea sediment drifts on the Antarctic Peninsula Pacific margin: Climatic control on provenance of minerals
Read more of: Late Quaternary sediments from deep-sea sediment drifts on the Antarctic Peninsula Pacific margin: Climatic control on provenance of mineralsWe present results of detailed paleomagnetic investigations on deep-sea cores from sediment drifts located along the Pacific continental margin of the Antarctic Peninsula. High-resolution magnetic measurements on u channel samples […]
-
Plastics in the Antarctic environment: Are we looking only at the tip of the iceberg?
Read more of: Plastics in the Antarctic environment: Are we looking only at the tip of the iceberg?The available literature on marine debris and its impacts in the sub-Antarctic Islands, the Antarctic Peninsula and on the coasts of Antarctica was organized and interpreted here. A total of […]
-
Bayesian inference of a historical bottleneck in a heavily exploited marine mammal
Read more of: Bayesian inference of a historical bottleneck in a heavily exploited marine mammalEmerging Bayesian analytical approaches offer increasingly sophisticated means of reconstructing historical population dynamics from genetic data, but have been little applied to scenarios involving demographic bottlenecks. Consequently, we analysed a […]
-
Exploring uncertainties in the relationship between temperature, ice volume, and sea level over the past 50 million years
Read more of: Exploring uncertainties in the relationship between temperature, ice volume, and sea level over the past 50 million yearsand sea level for the past 50 Ma have increased. In parallel, efforts to model ice sheet changes during this period have been ongoing. We review published paleodata and modeling […]
-
Exotic Collembola on subantarctic islands: pathways, origins and biology
Read more of: Exotic Collembola on subantarctic islands: pathways, origins and biologyThree exotic species of Collembola are here identified in collections made during surveys on subantarctic South Georgia in the summers of 2005/2006 and 2009/2010. Previously, only two exotic species of […]
-
Ice stream or not? Radio-echo sounding of Carlson Inlet, West Antarctica
Read more of: Ice stream or not? Radio-echo sounding of Carlson Inlet, West AntarcticaThe Antarctic Ice Sheet loses mass to the surrounding ocean mainly by drainage through a network of ice streams: fast-flowing glaciers bounded on either side by ice flowing one or […]
-
The neodymium isotopic composition of waters masses in the eastern Pacific sector of the Southern Ocean
Read more of: The neodymium isotopic composition of waters masses in the eastern Pacific sector of the Southern OceanThe Antarctic Circumpolar Current is one of the key components of ocean circulation, and a knowledge of its isotopic composition is essential to the use of neodymium (Nd) isotopes to […]