Found 13253 items
1 January, 1983
The role of the sexes in incubation, their changes in body weight and associated energy costs were studied in the Wandering Albatross at South Georgia. Males incubate significantly more than…Read more on Energy costs of incubation in the Wandering Albatross Diomedea exulans
1 January, 1983
A multi-isotope approach has been applied to the origin of one of the largest and latest Newer Granite complexes of the Scottish Caledonides. Contributions from both mantle and unexposed late…1 January, 1983 by Alistair Crame
Malayomaorica malayomaorica is an important Upper Jurassic bivalve in the southern hemisphere: widely distributed in strata of Early - Middle Kimmeridgian age, it is a zone fossil of considerable potential…1 January, 1983
Age-specific fecundity data are presented for 17 yr of tagging and recapture of Leptonychotes weddelli at Signy Island, South Orkney Islands. Minimum age of first pupping was 2 yr, mean…Read more on Fecundity, survival and site fidelity in Weddell seals, Leptonychotes weddelli
1 January, 1983
Water turnover rates were measured in gentoo and macaroni penguins breeding sympatrically on South Georgia Island. At the time of this study, adult male macaronis were attending the nest while…1 January, 1983
The techniques for estimating hmF2 from M(3000)F2 are reviewed with particular stress put upon those in which the effects of underlying ionization are accounted for by a correction (ΔM) to…1 January, 1983
Case studies of the equatorward movement of the main F region trough are presented, using data recorded by a digital ionospheric sounder located at Halley Bay (76°S, 27°W; Λ =…Read more on Radio studies of the main F region trough in Antarctica
1 January, 1983
This series of papers comprises contributions to a symposium on the geography of the Falkland Islands, held at the Royal Geographical Society on 18 May 1982, with Lord Shackleton in…1 January, 1983
Certain Antarctic moss communities often have a pattern of concentric arcs or rings on their surfaces which can be up to 5 m in diameter. These are caused by fungal…Read more on Concentric fungal rings in antarctic moss communities
1 January, 1983
The lifetime of whistler ducts is determined in view of whistler data recorded over a 3-hour period at Sanae and Halley (L = 3.98 and 4.24, respectively) in South Africa,…1 January, 1983
Seasonal changes in nutrient concentrations, phytoplankton biomass and nutritional state were followed in two contrasting Antarctic lakes. Oligotrophic Sombre Lake receives little phosphate from its catchment and this limits the…1 January, 1983
My short note in an earlier issue of Polar Record [21(133): 394–95 (1983)] outlined events in the Falkland Islands Dependencies arising from the Argentinian attack and occupation of April 1982,…Read more on Hostilities in the Falkland Islands Dependencies March–June 1982
1 January, 1983
Giant petrels are the chief scavenging seabirds in the Southern Ocean. Quantitatively analysed regurgitations from chicks of both Macronectes halli and M. giganteus at Bird Island, South Georgia throughout the…1 January, 1983
The McAuliffe (1971) multiple equilibration technique has been used to measure the Henry's Law constants (H) for a variety of low molecular weight halocarbon gases in distilled and sea waters…1 January, 1983
Mucor hiemalis was frequently isolated from the litter of Poa flabellata where it apparently grows as a secondary sugar fungus in association with Chrysosporium pannorum.Read more on Association between Chrysosporium pannorum and Mucor hiemalis in Poa flabellata litter
1 January, 1983
1. The relationship between heart ventricle weight and body weight has been determined for three species of Antarctic fish with respiratory pigments (Notothenia gibberifrons, Notothenia neglecta and Notothenia rossii) and…1 January, 1983
The Voyager 1 and 2 flybys of Saturn revealed the presence of a variety of plasma waves associated with Saturn's magnetosphere1,2, some electrostatic in nature, others apparently electromagnetic. Possibly the…1 January, 1983
Natural VLF emissions received by a single antenna can be characterised at each point in the emissions' frequency-time domain by a power and a phase. Emissions received at a single…Read more on Characteristics of VLF emissions manifested by their cross-spectral phase information
1 January, 1983
VLF waves at 3.85 kHz from the Siple, Antarctica, transmitter were continuously measured by electric and magnetic receivers on a sounding rocket as the waves propagated through the neutral atmosphere…Read more on In situ measurements of transionospheric VLF wave injection
1 January, 1983
The Cumberland Bay Formation is a deformed Late Jurassic-Early Cretaceous volcaniclastic turbidite formation several kilometers thick. It has been interpreted as the fill of a back-arc basin which was active…1 January, 1983
Elephant seals, Mirounga leonina, of both sexes undergo a prolonged fast during the breeding season when they rely on their reserves of blubber for energy. Activity patterns were observed in…1 January, 1983 by Andrew Clarke, Peter Ward
The interaction between feeding activity, swarming behaviour and vertical migration in Antarctic krill, Euphausia superba Dana, was examined by a combination of laboratory physiology studies and intensive field sampling of…Read more on Some aspects of feeding in the Antarctic krill, Euphausia superba
1 January, 1983
Approximately 70 K-Ar whole-rock ages for low-K tholeiitic and andesitic volcanic and intrusive rocks from the South Shetland Islands, Antarctica, including about 50 not previously published, are reviewed. Activity mainly…1 January, 1983
The Antarctic limpet Nacella (Patingera) concinna (Strebel, 1908) forms temporary “stacks” before spawning, a behaviour which ensures that gametes are released in close proximity. This promotes the fertilization of a…1 January, 1983
The possibility of a global warming induced by increasing levels of atmospheric carbon dioxide has led to increased interest in monitoring global temperatures. Polar regions are of particular interest because…Read more on Recent temperature changes in the Arctic and Antarctic
1 January, 1983
Seismic, radio-echo, TWERLE balloon and oceanographic data of the Filchner-Ronne ice shelves are analysed. A large thin area in the central Ronne Ice Shelf is found to differ from the…Read more on Regime of the Filchner–Ronne ice shelves, Antarctica
1 January, 1983
The occurrence of sporadic E (ES) under the main F region trough has been established using ionograms from a vertical incidence ionosonde at Halley Bay, Antarctica (76°S, 27°W; L =…Read more on Studies of sporadic E (Es) associated with the main ionospheric trough