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VLF, magnetic and Pi2 substorm signatures
1 January, 2000 by Mervyn Freeman
We carried out a superposed epoch analysis, using a database of substorm chorus events observed at Halley, Antarctica, within an hour of magnetic midnight, to define a set of 123…Plants of extreme habitats in Antarctica
1 January, 2000
An account is given of phanerogams and cryptogams(bryophytes and lichens) growing in extreme habitats in Antarctica. These include high altitude and far southern sites, geothermal sites in volcanic areas, and…I.M. Lamb’s unpublished contribution to Antarctic lichenology
1 January, 2000
An account is given of the unpublished work of Ivan Mackenzie Lamb, who spent almost 35 years working on the taxonomy and ecology of Antarctic lichens. Much of his meticulous…Read more on I.M. Lamb’s unpublished contribution to Antarctic lichenology
Glacio-chemical study spanning the past 2 kyr on three ice cores from Dronning Maud Land, Antarctica: 1. Annually resolved accumulation rates
1 January, 2000 by Robert Mulvaney
For the first time, annually resolved accumulation rates have been determined in central Antarctica by means of counting seasonal signals of ammonium, calcium, and sodium. All records, obtained from three…Glacio-chemical study spanning the past 2 kyr on three ice cores from Dronning Maud Land, Antarctica: 2. Seasonally resolved chemical records
1 January, 2000 by Robert Mulvaney
The ammonium, calcium, and sodium concentrations from three intermediate depth ice cores drilled in the area of Dronning Maud Land, East Antarctica, have been investigated. Since all measurements were performed…Investigations into an unknown organism on the martian meteorite Allan Hills 84001
1 January, 2000
Examination of fracture surfaces near the fusion crust of the martian meteorite Allan Hills (ALH) 84001 have been conducted using scanning electron microscopy (SEM) and atomic force microscopy (AFM) and…Read more on Investigations into an unknown organism on the martian meteorite Allan Hills 84001
A potent greenhouse gas identified in the atmosphere: SF5CF3
1 January, 2000 by Robert Mulvaney
We detected a compound previously unreported in the atmosphere, trifluoromethyl sulfur pentafluoride (SF5CF3). Measurements of its infrared absorption cross section show SF5CF3 to have a radiative forcing of 0.57 watt…Read more on A potent greenhouse gas identified in the atmosphere: SF5CF3
Analytical determination of power-law index for the Chapman et al. sandpile (FSOC) analog for magnetospheric activity – a renormalization-group analysis
1 January, 2000
Recent suggestion and experimental indications that the magnetotail dynamics exhibit self-organized critical behavior have re-motivated interest in sandpile (avalanche) models. Some examples of specific interest for geomagnetic activity have the…Renormalization-group study of a sandpile (FSOC)analog for magnetospheric activity
1 January, 2000
It has been suggested that the dynamics of the magnetotail may exhibit forced and/or self-organized critical behaviour. Recent analysis of experimental data seem to be in concert with this idea.…Read more on Renormalization-group study of a sandpile (FSOC)analog for magnetospheric activity
Macrofossils from CRP-2/2A, Victoria Land Basin, Antarctica
1 January, 2000
CRP-2/2A hole, drilled at 77.006oS and 163.719oE, about 14 km east of Cape Roberts, in the Ross Sea, reached 624 metres below sea floor and recovered a thick Miocene-Oligocene succession…Read more on Macrofossils from CRP-2/2A, Victoria Land Basin, Antarctica
Solar cycle changes in daytime VLF subionospheric attenuation
1 January, 2000 by Mark Clilverd
Observations of field strengths of signals from a number of VLF transmitters, after propagation over long paths in the Earth–ionosphere waveguide, have been used to examine changes in the daytime…Read more on Solar cycle changes in daytime VLF subionospheric attenuation
Modeling the consequences of Antarctic krill harvesting on Antarctic fur seals
1 January, 2000
In terms of the convention governing the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), management advice for the Antarctic krill (Euphausia superba) fishery should take the needs…Read more on Modeling the consequences of Antarctic krill harvesting on Antarctic fur seals
Transport and structure within the Antarctic Circumpolar Current to the north of South Georgia
1 January, 2000 by Eugene Murphy, Philip Trathan, Sally Thorpe
The Antarctic Circumpolar Current (ACC) crosses rugged topography to the north of South Georgia. In this region the subsurface expression of the Polar Front (PF) is generally thought to occur…A surface acoustic wave frost-point hygrometer for measurements of stratospheric water vapour
1 January, 2000 by Howard Roscoe
Conventional frost-point hygrometers observe frost on their cold point by optical means [1,2,3], thereby requiring several micrometres of ice to form. We have developed a new hygrometer which uses surface…Report on the First International Symposium on Operational Weather Forecasting in Antarctica
1 January, 2000 by John Turner
The First International Symposium on Operational Weather Forecasting in Antarctica was held in Hobart, Australia, from 31 August to 3 September 1998. There were 40 attendees at the meeting from…Temperature and pressure tolerances of embryos and larvae of the Antarctic sea urchin Sterechinus neumayeri (Echinodermata:Echinoidea):potential for deep-sea invasion from high latitudes
1 January, 2000 by Andrew Clarke
Early embryos, blastulae, prisms and 4-arm plutei of the Antarctic shallow-water echinoid Sterechinus neumayeri were subjected to a temperature/pressure regime from -1.2 to +2.5°C and from 1 to 250 atm.…Holocene electrical and chemical measurements from the EPICA–Dome C ice core
1 January, 2000 by Eric Wolff, Robert Mulvaney
The comparison between electric (electric-conductivity measurement (ECM) and dielectric profiling (DEP)) and chemical (sulphate and chloride) depth profiles along the first 400 m of the EPICA-Dome C ice core revealed…Read more on Holocene electrical and chemical measurements from the EPICA–Dome C ice core
A seasonally varying biotope at Signy Island, Antarctic: implications for meiofaunal structure
1 January, 2000
Under the typical high-latitude conditions of temperature, productivity and settlement of chlorophyll and phaeophytin to the sediment, many benthic organisms in the Antarctic show strong seasonal variation. Although meiofauna comprise…The eastern Palmer Land shear zone: a new terrane accretion model for the Mesozoic development of the Antarctic Peninsula
1 January, 2000
A major ductile fault zone, the eastern Palmer Land shear zone, has been identified east of the spine of the southern Antarctic Peninsula. This shear zone separates newly identified geological…Lévy flights in random searches
1 January, 2000 by Vsevolod Afanasyev
We review the general search problem of how to find randomly located objects that can only be detected in the limited vicinity of a forager, and discuss its quantitative description…The ionospheric response to interplanetary magnetic field variations: Evidence for rapid global change and the role of preconditioning in the magnetosphere
1 January, 2000 by Michael Pinnock
We have found observational evidence for a rapid communication of interplanetary magnetic field (IMF) changes to the global ionosphere and evidence for the state of the magnetosphere in the previous…Contrasting strategies of provisioning and chick growth in two sympatrically breeding albatrosses at Campbell Island, New Zealand
1 January, 2000
The provisioning strategies of two closely related species of albatross breeding sympatrically were studied at Campbell Island, New Zealand. Black-browed Albatrosses (Diomedea melanophrys) had a higher provisioning rate of chicks…Chick provisioning by the Yellow-nosed Albatross Diomedea chlororhynchos: response of foraging effort to experimentally increased costs and demands
1 January, 2000
We examined the provisioning strategy of a long-lived seabird to test the prediction from life-history theory that adults should preferentially allocate resources towards their own needs rather than towards their…Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic
1 January, 2000
The effects of growth temperature on soluble carbohydrate and lipid content of Humicola marvinii, Geomyces pannorum and Mortierella elongata isolated from the Antarctic (Signy Island; 60° 43′S, 45°38′W) were investigated.…Cold acclimation and cryoprotectants in a freeze-tolerant Antarctic nematode, Panagrolaimus davidi
1 January, 2000 by Roger Worland
Panagrolaimus davidi is a freeze-tolerant Antarctic nematode which survives extensive intracellular freezing. This paper describes the development of culture techniques which provide clean samples, with a high degree of freeze…Diversity of thermal responses of lipid composition in the membranes of the dominant culturable members of an Antarctic fellfield soil bacterial community
1 January, 2000
The eight dominant culturable members of an Antarctic fellfield soil bacterial community were four Arthrobacter species, Sanguibacter suarezii, Aureobacterium testaceum, a Bacillus sp., and a Pseudomonas sp.. All of the…Chlorophyll/nutrient characteristics in the water masses to the north of South Georgia, Southern Ocean
1 January, 2000
Chlorophyll a and nutrient concentrations along with temperature and salinity values were measured at 22 CTD stations along a 735-km transect running to the northwest of the island of South…Transmission electron microscope analysis of virus-like particles in the freshwater lakes of Signy Island, Antarctica
1 January, 2000 by David Pearce
Water samples from a range of fresh-water Antarctic lakes on Signy Island (South Orkney Islands: 60°45′S, 45 °38′W) were examined for the presence of virus-like particles (VLPs) during the 1998/1999 field…History of the atmosphere from ice cores
1 January, 2000 by Eric Wolff
Ice cores are an excellent way of finding out how the atmosphere has changed because climate signals and many forcing factors for climate are present in the same core. Their…Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
1 January, 2000 by Andrew Wood
We develop a new approach to quantifying habitat use within the foraging ranges of satellite-tracked seabirds. We applied kernel estimation techniques to 167 days (3738 locations) of data from Black-browed…Laser-derived, particle size data from CRP-2/2A: implications for sequence and seismic stratigraphy
1 January, 2000
Gravel-free, high-resolution (1-metre spacing, 32 channel) particle size data from the CRP-2/2A drill core indicate that many of the diamictites were likely deposited from floating ice. Textural dislocations occur at…Survival of Heleomyza borealis (Diptera, Heleomyzidae) larvae down to -60oC
1 January, 2000 by Roger Worland, William Block
Heleomyza borealis Boh. (Diptera, Heleomyzidae) overwinters as larvae in Arctic habitats, where they may experience winter temperatures below − 15°C. The larvae freeze at c.− 7°C but in acclimation experiments 80% survived…Read more on Survival of Heleomyza borealis (Diptera, Heleomyzidae) larvae down to -60oC
Rapid cold hardening: a gut feeling
1 January, 2000 by Roger Worland, Peter Convey
This study examined the rate of cold hardening of a field population of Antarctic springtails and the effect of eating food with particular levels of ice nucleating activity on the…The effect of feeding on specific soil algae on the cold-hardiness of two Antarctic micro-arthropods (Alaskozetes antarcticus and Cryptopygus antarcticus)
1 January, 2000 by Roger Worland
The effect of consuming terrestrial algae on the cold tolerance of two Antarctic micro-arthropods was examined. From the results of preferential feeding experiments, seven species of Antarctic terrestrial micro-algae were…Space Plasma Exploration by Active Radar (SPEAR): an overview of a future radar facility
1 January, 2000 by Richard Horne
SPEAR is a new polar cap HF radar facility which is to be deployed on Svalbard. The principal capabilities of SPEAR will include the generation of artificial plasma irregularities, operation…Postsealing genetic variation and population structure of two species of fur seal (Arctocephalus gazella and A. tropicalis)
1 January, 2000
Commercial sealing in the 18th and 19th centuries had a major impact on the Antarctic and subantarctic fur seal populations (Arctocephalus gazella and A. tropicalis) in the Southern Ocean. The…Cyanobacteria in deserts — life at the limit?
1 January, 2000
Cyanobacteria are primitive phototrophic prokaryotes whose long evolutionary history dates back to the Proterozoic era. Their ubiquity on the planet and dominance in hot and cold deserts is a measure…Antarctic ecosystems as models for extraterrestrial surface habitats
1 January, 2000
Surface habitats in Antarctic deserts are near the limits of life on Earth and resemble those hypothesized for early Mars. Cyanobacteria dominate the transient riverbeds, stromatolitic sediments in ice-covered lakes,…Read more on Antarctic ecosystems as models for extraterrestrial surface habitats
Proximal analysis of regolith habitats and protective biomolecules in situ by laser Raman spectroscopy: Overview of terrestrial Antarctic habitats and Mars analogs
1 January, 2000
Fourier-transform laser Raman spectroscopy in the near infrared (1064 nm) has been used to characterize a variety of key pigments and biomolecules produced by cyanobacteria and other stress-tolerant microbes in…Lichens at the limits of life: past perspectives and modern technology
1 January, 2000
Lichens are found at the limits of polar life in the Antarctic Dry Valleys under extreme conditions of UVB radiation, desiccation and low temperature. They may even have evolved in…Read more on Lichens at the limits of life: past perspectives and modern technology
Commensalism between a liparid fish (Careproctus sp.) and stone crabs (Lithodidae) photographed in situ using a baited camera
1 January, 2000 by Martin Collins
The commensal relationship between a snailfish, tentatively identified as Careproctus sp. (Osteichthyes: Liparidae), and the lithodid crab Paralomis formosa (Crustacea: Lithodidae) was photographed in situ using a baited camera vehicle,…From model intercomparison toward benchmark UV spectra for six real atmospheric cases
1 January, 2000
The validity of a radiative transfer model can be checked either by comparing its results with measurements or with solutions for artificial cases. Unfortunately, neither type of comparison can guarantee…Read more on From model intercomparison toward benchmark UV spectra for six real atmospheric cases
Bacterial growth and grazing loss in contrasting areas of North and South Atlantic
1 January, 2000
Samples were collected from the top 200 m of the water column at 50 stations during two cruises in different, near equinoctial seasons on an Atlantic transect near the 20°W…Read more on Bacterial growth and grazing loss in contrasting areas of North and South Atlantic
Quantitative analysis and interpretation of dot echoes observed with a Doppler sodar
1 December, 1999
While some people involved in the acoustic remote sensing field are aware of the possibility of receiving dot echoes from nonatmospheric targets, most of the papers available in the scientific…Read more on Quantitative analysis and interpretation of dot echoes observed with a Doppler sodar
An assessment of operational Antarctic analyses based on data from the FROST Project
1 December, 1999 by Gareth Marshall, John Turner
The quality of the Antarctic operational analyses that were distributed over the Global Telecommunications System during the First Regional Observing Study of the Troposphere project special observing period of July…Read more on An assessment of operational Antarctic analyses based on data from the FROST Project
Investigating possible causes of the observed diurnal variability in Antarctic NOy
1 September, 1999 by Anna Jones, Eric Wolff
The occurence of a diurnal variability in measured total oxidised nitrogen (NOy) was observed at Neumayer, Antarctica, (70 degrees 39'8, 8 degrees 15'W) during a recent summer measurement campaign. Minima…Read more on Investigating possible causes of the observed diurnal variability in Antarctic NOy
Implications of the oceanic thermal skin temperature deviation at high wind speed
1 August, 1999 by John Turner
Extensive oceanographic and atmospheric observations obtained during three independent experiments in the Atlantic Ocean are used to demonstrate the relationship between wind speed and the temperature deviation ΔT, which is…Read more on Implications of the oceanic thermal skin temperature deviation at high wind speed
Exactly solvable sandpile with fractal avalanching
1 June, 1999
A simple one-dimensional sandpile model is constructed which possesses exact analytical solvability while displaying both scale-free behavior and fractal properties. The sandpile grows by avalanching on all scales, yet its…Read more on Exactly solvable sandpile with fractal avalanching
‘Pancake’ electron distributions in the outer radiation belts
1 June, 1999 by Richard Horne
Electron pitch angle distributions sharply peaked at 90 degrees pitch angle were first recorded in the energy range 50 eV < E < 500 eV by the GEOS1 and GEOS2…Read more on ‘Pancake’ electron distributions in the outer radiation belts
Possible latitudinal clines in Antarctic intertidal and subtidal zone communities encrusting ephemeral hard substrata
1 March, 1999 by David Barnes, Rod Arnold
Aim Encrusting faunal communities on rocks were examined from Southern Ocean intertidal and subtidal (6 m) zones to investigate potential change with latitude. Location The site locations were South Georgia…Highly polymorphic microsatellite loci of the heavily fished squid genus Illex (Ommastrephidae).
1 January, 1999 by Paul Rodhouse
Ommastrephid squid of the genus Illex form an important trophic component of large areas of the Atlantic ocean, both as prey for fish, seabirds, whales and other cephalopods, and as…Microsatellite analysis of genetic diversity in the squid Illex argentinus during a period of intensive fishing
1 January, 1999 by Paul Rodhouse
Levels of genetic diversity and population differentiation were examined in temporally (1990 to 1997) and geographically separated samples of the argentine short-finned squid Illex argentines using 7 microsatellite loci. Number…On the SuperDARN autocorrelation function observed in the ionospheric cusp
1 January, 1999 by Michael Pinnock
The SuperDARN radars are proving to be a very powerful experimental tool for exploring solar wind-magnetosphere-ionosphere interactions. They measure the autocorrelation function (ACF) of the transmitted signal backscattered from the…Read more on On the SuperDARN autocorrelation function observed in the ionospheric cusp
Krill-copepod interactions at South Georgia, Antarctica, II. Euphausia superba as a major control on copepod abundance
1 January, 1999 by Peter Ward
Euphausia superba (hereafter 'krill') and copepods are major zooplankton taxa in the Southern Ocean, but there is little information on how they interact. This paper investigates their coincidence across a…Comparative thermal tolerance of herbivorous and predatory beetles on South Georgia, Sub-Antarctic
1 January, 1999 by Roger Worland, William Block
On the sub-Antarctic island of South Georgia the field distributions of two herbivorous perimyloid beetles Hydromedion sparsutum and Perimylops antarcticus overlap with the latter occurring at higher altitudes. An introduced…Localized structure in the cusp and high-latitude ionosphere: a modelling study
1 January, 1999
The ionospheric signature of a flux transfer event (FTE) seen in EISCAT radar data has been used as the basis for a modelling study using a new numerical model of…Read more on Localized structure in the cusp and high-latitude ionosphere: a modelling study
Solution geochemistry and behaviour of major and trace elements during summer in a moss community at Edmonson Point, Victoria Land, Antarctica
1 January, 1999
Physical and chemical characteristics and solution geochemistry of major and trace elements were investigated in an area of volcanic soil colonized by mosses at Edmonson Point (central Victoria Land) during…Evidence for a volcanic rifted margin and oceanic crustal structure for the Falkland Plateau Basin
1 January, 1999
Marine geophysical data from the western Falkland Plateau show strongly lineated magnetic anomalies and a coincident linear gravity high that identify the southeastern margin of a Falkland Islands block as…Falkland Plateau evolution and a mobile southernmost South America
1 January, 1999
Assessment of southwest Gondwana break-up and its implications for regional hydrocarbon prospectivity must now take into account the origin of the southeast margin of the Falkland Islands as a volcanic…Read more on Falkland Plateau evolution and a mobile southernmost South America
Antarctic glacial history from numerical models and continental margin sediments
1 January, 1999
The climate record of glacially transported sediments in prograded wedges around the Antarctic outer continental shelf, and their derivatives in continental rise drifts, may be combined to produce an Antarctic…Read more on Antarctic glacial history from numerical models and continental margin sediments
Do life patterns differ between two Scotia Arc localities? A preliminary investigation of three erect Antarctic bryozoan species
1 January, 1999 by David Barnes
Erect bryozoans are extremely abundant and diverse in polar waters and individual species may span a wide range in latitude and bathymetry. A number of aspects of lifestyle, including polypide…The influence of ice on polar nearshore benthos
1 January, 1999 by David Barnes
Polar benthic communities are subject to a range of disturbance levels from a variety of sources, principal amongst which is ice. This occurs in four main forms: the ice-foot, ice…Read more on The influence of ice on polar nearshore benthos
Annual plankton dynamics in an Antarctic saline lake
1 January, 1999
Summary 1. The plankton dynamics of Ace Lake, a saline, meromictic basin in the Vestfold Hills, eastern Antarctica was studied between December 1995 and February 1997. 2. The lake supported two distinct…Read more on Annual plankton dynamics in an Antarctic saline lake
Wing and primary growth of the Wandering Albatross
1 January, 1999
We investigated the relationship between body mass and the rate and pattern of feather growth of the four outermost primaries of Wandering Albatross (Diomedea exulans) chicks. Maximum growth rates were…Read more on Wing and primary growth of the Wandering Albatross
The diet of white-chinned petrels Procellaria aequinoctialis, Linnaeus 1758, in years of contrasting prey availability at South Georgia
1 January, 1999
The diet of breeding white-chinned petrels was studied during the summers of 1996 and 1998 at South Georgia. Krill abundance/availability was high throughout 1996 but apparently low at the beginning…Influence of sampling protocol on diet determination of gentoo penguins Pygoscelis papua and Antarctic fur seals Arctocephalus gazella
1 January, 1999
The influence of two sampling protocols on diet determination of two marine predators, the gentoo penguin (Pygoscelis papua) and Antarctic fur seal (Arctocephalus gazella), was investigated. The collection of diet…Rhynchonellid brachiopods from the Oligocene of King George Island, West Antarctica
1 January, 1999
Rhynchonellid brachiopods are reported for the first time from the Oberek Cliff Member of the Oligocene Polonez Cove Formation of King George Island, South Shetland Islands, West Antarctica. Rhynchonellids are…Read more on Rhynchonellid brachiopods from the Oligocene of King George Island, West Antarctica
Nitrogenous excretion in the Antarctic plunderfish
1 January, 1999
The nitrogenous excretion rates (total ammonia nitrogen, urea, and primary amines) of plunderfish Harpagifer antarcticus were related significantly to length and to wet mass (mass exponents of 0·94, 1·01, 1·07…Read more on Nitrogenous excretion in the Antarctic plunderfish
Foraging and provisioning in Antarctic fur seals: interannual variability in time-energy budgets
1 January, 1999
This study examined three competing hypotheses to explain how lactating Antarctic fur seals (Arctocephalus gazella) respond to changes in the level of resource availability. Antarctic fur seals have episodic bouts…Heart rate and behaviour of fur seals: implications for measurement of field energetics
1 January, 1999
Archival data loggers were used to collect information about depth, swimming speed, and heart rate in 23 free-ranging antarctic fur seals. Deployments averaged 9.6 ± 5.6 days (SD) and totaled…Read more on Heart rate and behaviour of fur seals: implications for measurement of field energetics
Spatial dynamics of two introduced species of carabid beetles on the sub-Antarctic island of South Georgia
1 January, 1999 by William Block
On the sub-Antarctic island of South Georgia two species of predatory beetle, Trechisibus antarcticus and Oopterus soledadinus (Coleoptera, Carabidae), were accidentally introduced. The colonisation process offers unique opportunities for testing…The shelf break front to the east of the sub-Antarctic island of South Georgia
1 January, 1999 by Eugene Murphy, Philip Trathan
The sub-Antarctic island of South Georgia lies in polar waters to the south of the Polar Front and is influenced by the Weddell Scotia Confluence whose waters reach the island’s…Read more on The shelf break front to the east of the sub-Antarctic island of South Georgia
Late Jurassic tethyan ancestry of Recent southern high-latitude marine isopods (Crustacea, Malacostraca)
1 January, 1999 by Alistair Crame
Isopods are one of the key marine groups that radiated extensively in the southern high-latitude regions, and it is widely assumed that they did so essentially through the Cenozoic era.…Potential for long-distance dispersal of Euphausia crystallorophias in fast current jets
1 January, 1999
The euphausiid Euphausia crystallorophias Holt and Tattersall, 1906 is considered to be a neritic species. It has been found in greatest abundance along the Antarctic continental margins, often in association…Concordance of interannual fluctuations in acoustically estimated densities of Antarctic krill around South Georgia and Elephant Island: biological evidence of same-year teleconnections across the Scotia Sea
1 January, 1999 by Jonathan Watkins
Acoustic estimates of the densities of Antarctic krill, Euphausia superba, in areas around South Georgia (SG) and Elephant Island (EI) were compared for seven austral summers between 1981 and 1997.…Acoustic estimates of krill density at South Georgia, 1981 to 1998
1 January, 1999 by Jonathan Watkins
Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia during 11 austral summers between 1981 and 1998 are presented. Krill density at the island fluctuated widely from…Read more on Acoustic estimates of krill density at South Georgia, 1981 to 1998
A comparison of Antarctic euphausiids sampled by net and from geothermally heated waters: insights into sampling bias
1 January, 1999
The Antarctic euphausiids Euphausia superba and E. crystallorophias were sampled using an 8 m2 rectangular midwater trawl inside the caldera of Deception Island. Specimens of the same species were collected on…Geochronology, structural geology and petrology of the northwestern Lagrange Nunataks, Shackleton Range, Antarctica
1 January, 1999
The metamorphic rocks of the La Grange Nunataks, northwestern Shackleton Range, have a complex structural and metamorphic history, involving Mid-Proterozoic and Ross- (Cambro-Ordovician) aged events. The protolith of the Stratton…Fatty acid signature analysis from the milk of Antarctic fur seals and Southern elephant seals from South Georgia:implications for diet determination
1 January, 1999
Fatty acid signature analysis (FASA) makes use of specific fatty acids, as well as entire profiles, to study dietary relationships at different trophic levels. Previously, FASA has been used in…Seasonal dynamics of the planktonic microbial community in a maritime Antarctic lake undergoing eutrophication
1 January, 1999
The abundance, biomass and community structure of phytoplankton, bacterioplankton and protozooplankton in a maritime Antarctic lake were determined at approximately monthly intervals from December 1994 to February 1996 and compared…Temporal plankton dynamics in a maritime Antarctic Lake
1 January, 1999
Changes in abundance, diversity and productivity of plankton in a maritime Antarctic lake were studied between December 1994 and February 1996. There were large intra- and inter-annual fluctuations in population…Read more on Temporal plankton dynamics in a maritime Antarctic Lake