10513 to 10524 of 14084 results
Winter ranges have been identified for most neotropical migrant bird species, those that spend the winter months in Central and South America and summer months in North America. Published accounts […]
The consolidation and bond strength of rafted sea ice were investigated through a series of experiments undertaken in the Ice Physics Laboratory at the UCL. To simulate a section of […]
Extra-pair paternity (EPP) in monogamous birds may result from either extra-pair copulations (EPCs) or mate switching. In this study of King Penguins in South Georgia, we observed no EPCs at […]
Air monitoring stations Were set up at 2 sites in the southern hemisphere – Moody Brook, Falkland Islands (51 ~ 25′ S, 57 ~ 56’W) and Halley, Research Station, Antarctica […]
Sediment cores from the continentalrise west of the AntarcticPeninsula and the northern Weddell and ScotiaSeas were investigated for their ice-rafted debris (IRD) content by lithofacies logging and counting of particles […]
Antarctic notothenioid early life history strategies are examined in general and then for common species at South Georgia. Channichthyids, bathydraconids, artedidraconids and some nototheniids have large eggs 3·0–4·9 mm whereas […]
The physical characteristics of surface sediments from a suite of pristine lakes on Signy Island, maritime Antarctic, were used to develop a quantitative link between catchment ice-extent and lake-sediment response. […]
We have made oceanographic measurements at two sites beneath the southern Filchner-Ronne Ice Shelf. Hot-water drilled access holes were made during January 1999, allowing conductivity-temperature-depth (CTD) profiling and the deployment […]
The Earth’s magnetic field varies over many time scales. Whilst the slow secular variation of the strength and direction of the field over years to centuries is governed by processes […]
Between 34 and 15 million years (Myr) ago, when planetary temperatures were 3–4 °C warmer than at present and atmospheric CO2 concentrations were twice as high as today1, the Antarctic […]
Variability is a key feature of the pelagic ecosystems of the Southern Ocean and an important aspect of the variation is fluctuation in the abundance of krill Euphausia superba Dana, […]