Our publications
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Temporal and spatial components of variability in benthic recruitment, a 5-year temperate example
1 January, 2004 by David Barnes
Deployment of artificial substrata is a common method of investigating early community development and recruitment, but rarely are such experiments of long enough duration to include even year time scales.…Quantifying assemblage distinctness with time: an example using temperate epibenthos
1 January, 2004 by David Barnes
Artificial substrata are an often-used tool in assessing community development; here we quantify the changing presence of functional groups of benthos with replicate, depth, site, and time in order to…Read more on Quantifying assemblage distinctness with time: an example using temperate epibenthos
Cooling process recorded in subglacially erupted rhyolite glasses: rapid quenching, thermal buffering, and the formation of meltwater
1 January, 2004
The thermal histories of two subglacial rhyolite glasses from Torfajokull complex of south central Iceland have been determined from changes in the relaxation of enthalpy in the calorimetric glass transition…A Carboniferous necrophagous myodocopid ostracod from Derbyshire, England
1 January, 2004
A monospecific population of cypridinid ostracods (Myodocopida) has been recovered from an ammonoid-bearing concretion of Namurian (Kindescoutian, R1a-b) age in the Bowland Shale Formation of Central England. These deposits represent…Read more on A Carboniferous necrophagous myodocopid ostracod from Derbyshire, England
Structural variations in derivatives of the bacteriochlorophylls of Chlorobiaceae: impact of stratigraphic resolution on depth profiles as revealed by methanolysis
1 January, 2004 by Dominic Hodgson
Bacteriochlorophylls c and d, recovered from two sedimentary sequences, were converted to bacteriophaeophorbide methyl esters by methanolysis and analysed by atmospheric pressure chemical ionisation liquid chromatography-multi-stage mass spectrometry (APCI LC-MSn).…A customised GIS to aid Gondwana research
1 January, 2004
Geographical information Systems (GIS) provide tools for manipulating and analysing the large thematic datasets associated with Gondwana research. We have used a customised version of Environmental Systems Research Institute's ArcGIS,…Revealing Antarctica’s secrets
1 January, 2004 by Eric Wolff
In the clamour of predictions about future climate changes, it can be difficult to get hold of facts. However, by drilling ice cores from polar ice sheets and analysing them,…The EPICA challenge to the Earth system modeling community
1 January, 2004 by Eric Wolff
One of our major aims as Earth systems scientists is to predict how the Earth will behave in the future, particularly in the face of changes imposed upon it as…Read more on The EPICA challenge to the Earth system modeling community
Intracellular freezing and survival in the freeze tolerant alpine cockroach Celatoblatta quinquemaculata
1 January, 2004
The alpine cockroach Celatoblatta quinquemaculata is common at altitudes of around 1500 m on the Rock and Pillar range of Central Otago, New Zealand where it experiences freezing conditions in…Foraging ecology and interactions with fisheries of wandering albatrosses (Diomedea exulans) breeding at South Georgia
1 January, 2004 by Paul Rodhouse, Philip Trathan
Knowledge about the areas used by the foraging wandering albatross, Diomedea exulans, its prey and overlap with longline fisheries is important information not only for the conservation of this species…Two-dimensional structure of long-period pulsations at polar latitudes in Antarctica
1 January, 2004
Two-dimensional (2-D) statistical distributions of spectral power and coherence of polar geomagnetic variations with quasi-periods about 10 min are analyzed using data from magnetometer arrays in Antarctica. Examination of the…Read more on Two-dimensional structure of long-period pulsations at polar latitudes in Antarctica
Polymetamorphism in the NE Shackleton Range, Antarctica : constraints from petrology and U-Pb, Sm-Nd, Rb-Sr TIMS and in situ U-Pb LA-PIMMS dating
1 January, 2004
Metapelitic rock samples from the NE Shackleton Range, Antarctica, include garnet with contrasting zonation patterns and two age spectra. Garnet porphyroblasts in K-rich kyanite-sillimanite- staurolite-garnet-muscovite-biotite schists from Lord Nunatak show…Precipitation, sublimation, and snow drift in the Antarctic Peninsula region from a regional atmospheric model
1 January, 2004 by John King, Thomas Lachlan-Cope
A regional atmospheric model, with a horizontal grid spacing (Deltax) of 14 km, is used to study the surface mass balance components ( precipitation, sublimation, and snow drift) in the…The near-surface wind field over the Antarctic continent
1 January, 2004 by John Turner, Steve Colwell
A 14 year integration with a regional atmospheric model has been used to determine the near-Surface climatological wind field over the Antarctic ice sheet at a horizontal grid spacing of…Read more on The near-surface wind field over the Antarctic continent
Additions and corrections to the lichens of Antarctica and South Georgia
1 January, 2004
The taxonomic listing given in Lichens of Antarctica and South Georgia (Øvstedal & Lewis Smith 2001) has been updated. 17 additional taxa of lichenised fungi are described, including several nomenclatural…Read more on Additions and corrections to the lichens of Antarctica and South Georgia
Marine ice beneath the Filchner–Ronne Ice Shelf, Antarctica: a comparison of estimated thickness distributions
1 January, 2004 by David Vaughan
In an earlier study, melt/freeze rates beneath most of the Filchner–Ronne Ice Shelf, Antarctica, were estimated using an assumption of a steady-state ice shelf applied to a velocity field derived…Palynomorph and ostracod biostratigraphy of the Ballagan Formation, Midland Valley of Scotland and elucidation of intra-Dinantian unconformities
1 January, 2004
An interdisciplinary biostratigraphical study of Tournaisian–early Viséan sedimentary rocks from six sections in central Scotland has established the ranges of important palynomorph and ostracod taxa that can be used to…Utilizing riometry to observe gravity waves in the sunlit mesosphere
1 October, 2003
The novel use of imaging riometers to observe mesospheric gravity waves is described. Imaging riometers respond to changes in the absorption of cosmic radio noise in the ionospheric D-region which…Read more on Utilizing riometry to observe gravity waves in the sunlit mesosphere
Favored regions for chorus-driven electron acceleration to relativistic energies in the Earth’s outer radiation belt
1 August, 2003 by Richard Horne
[1] Pitch angle and energy diffusion rates for scattering by whistler-mode chorus waves are proportional to the wave magnetic field intensity and are strongly dependent on the frequency distribution of…Validation of imaging Doppler interferometer winds using meteor radar
1 July, 2003
There has been some debate over the years concerning the accuracy of mesospheric wind observations made using the imaging Doppler interferometer (IDI) technique. The high potential and increasing use of…Read more on Validation of imaging Doppler interferometer winds using meteor radar
A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles
1 June, 2003 by Mark Clilverd
Cold plasma mass density profiles in the plasmasphere have been determined for the geomagnetically quiet day of 19th August 2000 using the cross-phase technique applied to ground-based magnetometer data from…A redescription of Graneledone verrucosa (Verrill, 1881) (Octopoda: Octopodidae)
1 May, 2003
Graneledone verrucosa (Verrill 1881), the type species of the genus Graneledone, is redescribed based on historical material and previously unreported specimens that have resulted from an increase in deep-sea fishing…Read more on A redescription of Graneledone verrucosa (Verrill, 1881) (Octopoda: Octopodidae)
Resonant diffusion of radiation belt electrons by whistler-mode chorus
1 May, 2003 by Richard Horne, Sarah Glauert
We present the first relativistic electron pitch-angle and momentum diffusion rates for scattering by whistler-mode waves in the low density regieme. Diffusion rates are strongly dependent on the ratio between…Read more on Resonant diffusion of radiation belt electrons by whistler-mode chorus
Relativistic electron acceleration and precipitation during resonant interactions with whistler-mode chorus
1 May, 2003 by Richard Horne
Resonant interactions with whistler-mode chorus waves provide an important process for electron loss and acceleration during storm times. We demonstrate that wave propagation significantly affects the electron scattering rates. We…Phylogenetic relationships among cirrate octopods (Mollusca: Cephalopoda) resolved using mitochondrial 16S ribosomal DNA sequences
1 May, 2003 by Martin Collins
Phylogenetic relationships among the cirrate octopods (Mollusca: Cephalopoda) were investigated using partial sequences of the 16S rRNA mitochondrial gene. The derived phylogeny supports the traditional separation of cirrate families based…Biogeochemistry of a Southern Ocean plankton ecosystem: Using natural variability in community composition to study the role of metazooplankton in carbon and nitrogen cycles
1 April, 2003 by Jonathan Watkins, Peter Ward
[1] The pelagic ecosystem around the island of South Georgia is subject to significant interannual variability, and changes in zooplankton community composition can be used as natural ecosystem experiments to…Rapid, large-scale temperature changes in the polar mesosphere and their relationship to meridional flows
1 March, 2003
Mesospheric temperatures derived from spectroscopic measurements of the hydroxyl (OH) nightglow have been observed from Rothera (67.6°S, 68.1°W) and Halley (75.6°S, 26.6°W) stations in Antarctica during the 2002 austral winter…The Dufek and Forrestal intrusions, Antarctica: a centre for Ferrar Large Igneous Province dike emplacement?
1 March, 2003
Newly acquired aeromagnetic data indicate the presence of a dike swarm that may have acted as a magma transport and feeder system from the plume impact site up to 3,500…Case study of a Chinese dust plume reaching the French Alps
1 March, 2003
By combining reconstruction of airmass back-trajectories from dust deposition sites in Europe and measurements of the (Nd) isotopic composition of deposited dust particles, potential sources of different Saharan dust events…Read more on Case study of a Chinese dust plume reaching the French Alps
A regression model for the mass-balance distribution of the Vatnajokull ice cap, Iceland
1 January, 2003 by Hilmar Gudmundsson
A non-linear regression model describing the mass-balance distribution of the whole Vatnajokull ice cap, Iceland, for the years 1992-2000 is presented. All available data from some 40 locations over this…Adelieledone, a new genus of octopodid from the Southern Ocean
1 January, 2003 by Paul Rodhouse
The syntypes of the endemic Southern Ocean octopodid Pareledone polymorpha (Robson, 1930) were re-examined and measurements, counts and indices are presented. The two forms described by Robson, namely oblonga and…Read more on Adelieledone, a new genus of octopodid from the Southern Ocean
Fine-scale structure observed in a stable atmospheric boundary layer by SODAR and kite-borne tethersonde
1 January, 2003
Co-located high resolution profiles of acoustic backscatter, wind vector and potential temperature are presented, measured within the stable atmospheric boundary layer over an Antarctic ice shelf. Acoustic profiles from a…The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
1 January, 2003
The diet of black-browed albatrosses was studied at Gonzalo Island, Diego Ramirez, Chile, during the early chick-rearing periods of 2000, 2001, and 2002. Diet composition was determined by sampling chick-stomach…Read more on The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
Seasonal periodicity of physical factors, inorganic nutrients and microalgae in Antarctic fellfields
1 January, 2003 by Kevin Hughes, Peter Convey, Rod Arnold
Over 15 months between January 1990 and March 1991, a range of physical, chemical and biological parameters was monitored regularly in fellfield soils of frost-sorted polygons at four sites on…Optimal estimation of changes in the mass of ice sheets
1 January, 2003 by Robert Arthern
We describe a new approach for estimating changes in ice sheet mass. Two methods are in common use: the ice budget and geodetic methods. The first makes use of separate…Read more on Optimal estimation of changes in the mass of ice sheets
Response of rhizosphere microbial communities associated with Antarctic hairgrass (Deschampsia antarctica) to UV radiation
1 January, 2003
The response of rhizosphere microbial communities associated with natural populations of Deschampsia antarctica growing on Leonie Island (67degrees36'S, 68degrees21'W, Antarctic Peninsula) to UV radiation was investigated. UV radiation was controlled…In situ investigation of burst swimming and muscle performance in the deep-sea fish Antimora rostrata (Gunther, 1878)
1 January, 2003 by Martin Collins
The few existing measurements of deep-sea fish physiology consistently indicate reduced basal metabolism and metabolic power. A possible explanation for this is the reduction in selective pressure for burst activity…High-energy phosphate metabolism during exercise and recovery in temperate and Antarctic scallops – an in vivo 31P-NMR study
1 January, 2003 by Lloyd Peck
In vivo P-31-nuclear magnetic resonance (NMR) spectroscopy was used to measure the levels of ATP, phospho-L-arginine (PLA), and inorganic phosphate in the adductor muscle of the Antarctic scallop Adamussium colbecki…International Photolysis Frequency Measurement and Model Intercomparison (IPMMI): spectral actinic solar flux measurements and modeling
1 January, 2003
[1] The International Photolysis Frequency Measurement and Model Intercomparison (IPMMI) took place in Boulder, Colorado, from 15 to 19 June 1998, aiming to investigate the level of accuracy of photolysis…Ecology of subtropical hermit crabs in SW Madagascar: short-range migrations
1 January, 2003 by David Barnes
Many mobile animals migrate because of the different benefits provided by different localities in time and space. For hermit crabs, such benefits include resource (shell, water, food) acquisition and gamete…Read more on Ecology of subtropical hermit crabs in SW Madagascar: short-range migrations
Competition asymmetry with taxon divergence
1 January, 2003 by David Barnes
Most organisms experience competition for resources, probably most of the time. As the structure and requirements of closely related species are generally liable to be more similar than in distantly…Local, regional and global patterns of resource use in ecology: hermit crabs and gastropod shells as an example
1 January, 2003 by David Barnes
To see the 'big pictures', it seems increasingly clear that experimental design, data collection and analyses of ecological investigation need to be at multiple scales. This causes problems with data…Zoobenthic biodiversity, biomass and abundance at Adelaide Island, Antarctica
1 January, 2003 by David Barnes
The waters surrounding Antarctica are amongst the most isolated large areas of continental shelf, cut off for about 15 to 30 million yr by both deep water and the oceanographic…Read more on Zoobenthic biodiversity, biomass and abundance at Adelaide Island, Antarctica
Rafting by five phyla on man-made flotsam in the Southern Ocean
1 January, 2003 by David Barnes
In just 4 decades, marine litter has become abundant in northern oceans and seas and is increasing on even remote Southern Ocean island shores. The Southern Ocean was thought to…Read more on Rafting by five phyla on man-made flotsam in the Southern Ocean
High polar spatial competition: extreme hierarchies at extreme latitude
1 January, 2003 by David Barnes
On polar shores, as at lower latitude, intense battles for space ensue on boulders but the high wind, wave and ice disturbance make the colonisation race a short one in…Read more on High polar spatial competition: extreme hierarchies at extreme latitude
Evolution of chemical peak shapes in the Dome C, Antarctica, ice core
1 January, 2003 by Eric Wolff
[1] Interpretation of the chemical layers measured in ice cores requires knowledge of processes occurring after their deposition on the ice sheet. We present evidence for the diffusion of soluble…Read more on Evolution of chemical peak shapes in the Dome C, Antarctica, ice core
Comment on ‘Grain boundary ridge on sintered bonds between ice crystals’ (J. Appl. Phys., 90, 5782 (2001))
1 January, 2003
Ridges have been observed at the bonds between sintering snow grains. Images collected using the scanning electron microscope (SEM) and x-ray analysis of Antarctic snow are presented. These indicate the…SEM studies of the morphology and chemistry of polar ice
1 January, 2003 by Eric Wolff
Determining the microphysical location of impurities in natural ice from the polar regions is necessary for understanding the physical properties of ice and for assuring the integrity of ice core…Read more on SEM studies of the morphology and chemistry of polar ice
The ice-thickness distribution of Unteraargletscher, Switzerland
1 January, 2003 by Hilmar Gudmundsson
Results from 15 years of work on glacier-bed mapping by radio-echo soundings on Finsteraar-, Lauteraar- and Unteraargletscher, Switzerland, are summarized, and a new and greatly improved map of the ice-thickness…Read more on The ice-thickness distribution of Unteraargletscher, Switzerland
Effect of disturbance on assemblages: an example using Porifera
1 January, 2003 by David Barnes
Extensive sponge assemblages are found in a number of habitats at Lough Hyne Marine Nature Reserve. These habitats are unusual in experiencing a range of environmental conditions, even though they…Read more on Effect of disturbance on assemblages: an example using Porifera
Ionosphere dynamics over Europe and western Asia during magnetospheric substorms 1998-99
1 January, 2003
The temporal and spatial behaviour of the ionospheric parameters foF2 and h'F during isolated substorms are examined using data from ionospheric stations distributed across Europe and western Asia. The main…Halley – at the edge of ice-station design
1 January, 2003
Halley the 50-year-old Antarctic survey station where the hole in the ozone layer was discovered, is by necessity in one of the most inhospitable parts of the earth. Its resident…Water or ice? – the challenge for invertebrate cold survival
1 January, 2003 by William Block
The ecophysiology of cold tolerance in many terrestrial invertebrate animals is based on water and its activity at low temperatures, affecting cell, tissue and whole organism functions. The normal body…Read more on Water or ice? – the challenge for invertebrate cold survival
Water status and thermal analysis of alginate beads used in cryopreservation of plant germplasm
1 January, 2003 by William Block
Encapsulation and dehydration techniques using alginate beads are used increasingly for the pre-treatment of various plant materials for cryopreservation to improve survival post-cryogenic storage. This study reports the effects of…Activity and dormancy in relation to body water and cold tolerance in a winter-active springtail (Collembola)
1 January, 2003 by William Block
Ceratophysella sigillata (Collembola, Hypogastruridae) has a life cycle which may extend for >2 years in a temperate climate. It exists in two main morphs, a winter-active morph and a summer-dormant…Regional variability of ice core dust composition and provenance in Greenland
1 January, 2003
Mineralogical and isotopic composition (Sr and Nd) of six dust samples, obtained from six widely spread ice-coring sites in Greenland, were analyzed in order to investigate the regional geographic variability…Read more on Regional variability of ice core dust composition and provenance in Greenland
Plankton patchiness and its effect on larger-scale productivity
1 January, 2003 by Eugene Murphy
We investigate systematically the effect of small-scale biological and physical processes on the generation of plankton patchiness, and on the biological production averaged over scales much larger than those of…Read more on Plankton patchiness and its effect on larger-scale productivity
An investigation of avoidance by Antarctic krill of RRS James Clark Ross using the Autosub-2 autonomous underwater vehicle
1 January, 2003
The autonomous underwater vehicle (AUV) Autosub-2 was deployed on eight missions ahead of RRS James Clark Ross in the northern Weddell Sea and in the Bransfield Strait, Southern Ocean, to…Myogenic cell cycle duration in Harpagifer species with sub-Antarctic and Antarctic distributions: evidence for cold compensation
1 January, 2003 by Andrew Clarke
In teleosts, the proliferation of myogenic progenitor cells is required for muscle growth and nuclear turnover. We measured the cell cycle and S-phase duration of myogenic cells in the fast…A technique for accurately determining the cusp-region polar cap boundary using SuperDARN HF radar measurements
1 January, 2003 by Gareth Chisham, Mervyn Freeman
Accurately measuring the location and motion of the polar cap boundary (PCB) in the high-latitude ionosphere can be crucial for studies concerned with the dynamics of the polar cap, e.g.…Costs and consequences of evolutionary temperature adaptation
1 January, 2003 by Andrew Clarke
Temperature affects everything that an organism does. Although we have an increasingly sophisticated understanding of evolutionary adaptation to temperature at the molecular level for some cellular processes, we still know…Read more on Costs and consequences of evolutionary temperature adaptation
Polar marine ecosystems: major threats and future change
1 January, 2003 by Andrew Clarke
This review of polar marine ecosystems covers both the Arctic and Antarctic, identifying the major threats and, where possible, predicting their possible state(s) in 2025. Although the two polar regions…Read more on Polar marine ecosystems: major threats and future change
Application of computational mechanics to the analysis of natural data: an example in geomagnetism
1 January, 2003 by Mervyn Freeman
We discuss how the ideal formalism of computational mechanics can be adapted to apply to a noninfinite series of corrupted and correlated data, that is typical of most observed natural…In situ and ground-based intercalibration measurements of plasma density at L = 2.5
1 January, 2003 by Mark Clilverd, Michael Rose
[1] Two independent ground-based experiments and two satellite-borne experiments are used to interpret the changes in plasmaspheric composition at the same point in space during moderate geomagnetic activity on 22…Read more on In situ and ground-based intercalibration measurements of plasma density at L = 2.5
Residual solar cycle influence on trends in ionospheric F2-layer peak height
1 January, 2003 by Mark Clilverd
[1] The longest data sets available for estimating thermospheric temperature trends are those from ground-based ionosondes, which often begin during the International Geophysical Year of 1957, close to a solar…Read more on Residual solar cycle influence on trends in ionospheric F2-layer peak height
Solar activity levels in 2100
1 January, 2003 by Mark Clilverd
We consider the likely levels of solar activity in 2100 by analysing the previous history of long-term solar and geomagnetic activity indices. We make use of superposed periods of similar…Measurements of microbial protection from ultraviolet radiation in polar terrestrial microhabitats
1 January, 2003
Biological dosimeters made from a monolayer of Bacillus subtilis spores were used to investigate the penetration of ultraviolet radiation into some widespread terrestrial microbial microhabitats at polar latitudes: at Mars…The human exploration of the Martian poles Part 1 – from early expeditions to a permanent station
1 January, 2003
The establishment of a permanent human scientific presence at the Martian poles requires the identification of a strategy for growth, from localized field parties to a permanent polar infrastructure. Using…Polar endoliths – an anti-correlation of climatic extremes and microbial diversity
1 January, 2003
We examined the environmental stresses experienced by cyanobacteria living in endolithic gneissic habitats in the Haughton impact structure, Devon Island, Canadian High Arctic (75° N) and compared them with the…Read more on Polar endoliths – an anti-correlation of climatic extremes and microbial diversity
The impact crater as a habitat: effects of impact processing of target materials
1 January, 2003
Impact structures are a rare habitat on Earth. However, where they do occur they can potentially have an important influence on the local ecology. Some of the types of habitat…Read more on The impact crater as a habitat: effects of impact processing of target materials
Why the fuss about toothfish?
1 January, 2003 by Mark Belchier
The genus Grimpoteuthis (Octopoda: Grimpoteuthidae) in the north-east Atlantic, with descriptions of three new species
1 January, 2003 by Martin Collins
The systematics and distribution of the cirrate octopod genus Grimpoteuthis in the north-east Atlantic are reviewed. Three new species are described and Grimpoteuthis wuelkeri (Grimpe, 1920) is redescribed. A new…Long-term variation of the Antarctic Circumpolar Wave
1 January, 2003
[1] During the period 1968-1999, the character of circum-Antarctic anomalies in sea level pressure, sea ice edge, and sea surface temperature changed substantially. An Antarctic Circumpolar Wave (ACW) is only…Read more on Long-term variation of the Antarctic Circumpolar Wave
Maritime Antarctic climate change: signals from terrestrial biology
1 January, 2003 by Peter Convey
The simplicity of maritime Antarctic terrestrial ecosystems, combined with rapid changes in several environmental variables, creates a natural laboratory probably unparalleled worldwide in which to study biological consequences of climate…Read more on Maritime Antarctic climate change: signals from terrestrial biology
Soil arthropods as indicators of water stress in Antarctic terrestrial habitats?
1 January, 2003 by Helen Peat, Peter Convey, William Block
Abiotic features of Antarctic terrestrial habitats, particularly low temperatures and limited availability of liquid water, strongly influence the ecophysiology and life histories of resident biota. However, while temperature regimes of…Read more on Soil arthropods as indicators of water stress in Antarctic terrestrial habitats?
A placename geography for Antarctica
1 January, 2003 by Peter Fretwell
Placenames in Antarctica are uniquely complex. Antarctica’s distinctive political environment results in a situation where many national bodies confer names, but until recently there has been no coordination of this…What controls photochemical NO and NO2 production from Antarctic snow? Laboratory investigation assessing the wavelength and temperature dependence
1 January, 2003 by Anna Jones, Eric Wolff
[1] Laboratory experiments were conducted to determine the wavelength and temperature dependence of NO and NO2 release from Antarctic snow. This photochemically driven process has been observed during recent field…A high-Arctic population of Pyla fusca (Lepidoptera, Pyralidae) on Svalbard?
1 January, 2003 by Peter Convey
Over 300 species of insect (including Collembola) are recorded from Svalbard. These include 11 species of Lepidoptera, the majority of which are occasional summer immigrants (Coulson and Refseth 2003). Those…Read more on A high-Arctic population of Pyla fusca (Lepidoptera, Pyralidae) on Svalbard?
Transport and variability of the Antarctic Circumpolar Current in Drake Passage
1 January, 2003
[1] The baroclinic transport of the Antarctic Circumpolar Current (ACC) above 3000 m through Drake Passage is 107.3 +/- 10.4 Sv and has been steady between 1975 and 2000. For…Read more on Transport and variability of the Antarctic Circumpolar Current in Drake Passage
Early Palaeozoic near-surface deformation in the Neptune Range, Antarctica: implications for the Ross and Gondwanian orogenies
1 January, 2003
The Neptune Range of the Pensacola Mountains, East Antarctica, exposes a record of Early Palaeozoic to Early Mesozoic polyphase deformation along the former East Antarctic margin of Gondwana that is…Mobilization of fluidized sediment during sill emplacement, western Dronning Maud Land, East Antarctica
1 January, 2003 by Teal Riley
Large mafic sills in the Ahlmannryggen region of western Dronning Maud Land were intruded into partially lithified sediments of the mid-Proterozoic Ritscherflya Supergroup. Clastic sedimentary dykes intruding the thick mafic…Separating the Tristan albatross and the wandering albatross using morphometric measurements
1 January, 2003 by Richard Phillips
Recent taxonomic revisions of the Wandering Albatross sensu lato has resulted in four separate species, the rarest of which is the Tristan Albatross (Diomedea dabbenena). We present the first detailed…Chariocrinus – (Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica
1 January, 2003
Specimens of a late Bajocian to early Callovian isocrinid assigned to Pentacrinites cf. P. californicus (Clark), and specimens collected by Hikuroa in 1999–2000, are described as a new species of…Non-destructive analysis of pigments and other organic compounds in lichens using Fourier-transform Raman spectroscopy: a study of Antarctic epilithic lichens
1 January, 2003
Lichens in Antarctic habitats are subjected to environmental extremes, including UVB radiation, desiccation and low temperatures, as well as to rapid fluctuations in these. Lichens synthesise a variety of chemical…Fourier-transform Raman spectroscopic studies of chronological change in stromatolitic cores from Antarctic lake sediments
1 January, 2003 by Dominic Hodgson
The Fourier transform-Raman spectra of two lacustrine sediment cores from Antarctic sites are reported. The Lake Hoare specimens were predominantly calcium carbonate, quartz and β-carotene, with chlorophyll and calcium sulphate…Guest editorial to special issue dedicated to David D. Wynn-Williams
1 January, 2003
Project Leader, Antarctic Astrobiology, British Antarctic Survey, Cambridge 1946–2002 David Donaldson Wynn-Williams, born 16th July, 1946, in West Kirby, Cheshire, UK and Founding Editor of the International Journal of Astrobiology,…Read more on Guest editorial to special issue dedicated to David D. Wynn-Williams
Raman spectroscopic detection of biomolecular markers from Antarctic materials: evaluation for putative Martian habitats
1 January, 2003
The vital UV-protective and photosynthetic pigments of cyanobacteria and lichens (microbial symbioses) that dominate primary production in Antarctic desert ecosystems auto-fluoresce at short-wavelengths. A long wavelength (1064 nm) near infra-red…Molecular structural studies of lichen substances II: atranorin, gyrophoric acid, fumarprotocetraric acid, rhizocarpic acid, calycin, pulvinic dilactone and usnic acid
1 January, 2003
The FT-Raman and infrared vibrational spectra of some important lichen compounds from two metabolic pathways are characterised. Key biomolecular marker bands have been suggested for the spectroscopic identification of atranorin,…Molecular spectroscopic studies of lichen substances 1: parietin and emodin
1 January, 2003
The Raman and infrared spectra of the UV-radiation protectant parietin extracted from Xanthorialichen species are reported and vibrational assignments made of key features which are important for the characterisation of…Read more on Molecular spectroscopic studies of lichen substances 1: parietin and emodin
Laser wavelength selection for Raman spectroscopy of microbial pigments in situ in Antarctic desert ecosystem analogues of former habitats on Mars
1 January, 2003
The vital ultraviolet- (UV-) protective and photosynthetic pigments of cyanobacteria and lichens (microbial symbioses) that dominate primary production in Antarctic desert ecosystems auto-fluoresce at short wavelengths. We therefore use a…Astrobiological instrumentation for Mars – the only way is down
1 January, 2003
In this paper, in this edition of the Journal commemorating the life and work of David Wynn-Williams, we consider approaches to the astrobiological investigation of Mars. We provide a brief…Read more on Astrobiological instrumentation for Mars – the only way is down