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Bedmap2: improved ice bed, surface and thickness datasets for Antarctica
28 February, 2013 by Adrian Jenkins, Andy Smith, David Vaughan, Ed King, Fausto Ferraccioli, Hugh Corr, Hamish Pritchard, Peter Fretwell, Richard Hindmarsh, Tom Jordan, Richard Hindmarsh
We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60° S. We derived these…Read more on Bedmap2: improved ice bed, surface and thickness datasets for Antarctica
Year-round distribution and habitat preferences of the Bugio petrel
27 February, 2013 by Richard Phillips
The conservation of threatened seabirds that are highly pelagic, such as the gadfly petrels Pterodroma spp., depends on understanding the main oceanographic determinants of their movements in order to apply…Read more on Year-round distribution and habitat preferences of the Bugio petrel
At–sea behavior varies with lunar phase in a nocturnal pelagic seabird, the swallow-tailed gull
26 February, 2013 by Vsevolod Afanasyev
Strong and predictable environmental variability can reward flexible behaviors among animals. We used long-term records of activity data that cover several lunar cycles to investigate whether behavior at-sea of swallow-tailed…Inferring ocean currents from the shapes of towed seismic streamers. Extended abstract
21 February, 2013 by Emily Shuckburgh
When conducting marine seismic surveys, ocean currents noticeably perturb seismic streamers from their desired location. To accurately monitor a reservoir, the receivers in the streamers must be as close as…Read more on Inferring ocean currents from the shapes of towed seismic streamers. Extended abstract
Antarctic macrobenthic communities: a compilation of circumpolar information
19 February, 2013 by David Barnes
Comprehensive information on Antarctic macrobenthic community structure has been publicly available since the 1960s. It stems from trawl, dredge, grab, and corer samples as well as from direct and camera…Read more on Antarctic macrobenthic communities: a compilation of circumpolar information
The instability theory of drumlin formation and its explanation of their varied composition and internal structure
15 February, 2013 by Richard Hindmarsh, Richard Hindmarsh
Despite their importance in understanding glaciological processes and constraining large-scale flow patterns in palaeo-glaciology, there is little consensus as to how drumlins are formed. Attempts to solve the ‘drumlin problem’…Analysis of James Ross Island volcanic complex and sedimentary basin based on high-resolution aeromagnetic data
11 February, 2013 by Tom Jordan
High-resolution aeromagnetic surveys provide a geophysical tool to help image the subsurface structure of volcanoes and their tectonic framework. Here we interpret high-resolution aeromagnetic data and models for James Ross…Air and shipborne magnetic surveys of the Antarctic into the 21st century
11 February, 2013 by Fausto Ferraccioli
The Antarctic geomagnetics' community remains very active in crustal anomaly mapping. More than 1.5 million line-km of new air- and shipborne data have been acquired over the past decade by…Read more on Air and shipborne magnetic surveys of the Antarctic into the 21st century
New continental margin magnetic anomalies of East Antarctica
11 February, 2013
Over the past decade, Australian, Norwegian and Russian marine surveys have collected integrated seismic, gravity and magnetic data in the southern Indian Ocean. The more than 350,000 line-km of new…Read more on New continental margin magnetic anomalies of East Antarctica
Crustal architecture of the Wilkes Subglacial Basin in East Antarctica, as revealed from airborne gravity data
11 February, 2013 by Fausto Ferraccioli, Tom Jordan
The Wilkes Subglacial Basin, in the hinterland of the Transantarctic Mountains, represents one of the least understood continental-scale features in Antarctica. Aeromagnetic data suggests that this basin may be imposed…Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data
11 February, 2013 by Fausto Ferraccioli, Hugh Corr, Philip Leat, Tom Jordan
The Weddell Sea Rift was a major focus for Jurassic extension and magmatism during the early stages of Gondwana break-up and underlies the Weddell Sea Embayment, which separates East Antarctica…Read more on Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data
Magnetic susceptibilities of rocks of the Antarctic Peninsula: Implications for the redox state of the batholith and the extent of metamorphic zones
11 February, 2013 by Fausto Ferraccioli
A combination of 1555 magnetic susceptibility measurements from the Antarctic Peninsula between 65°S to 72°S (for which the raw data are made available), and petrological, structural and metamorphic data, has…Antarctic ozone loss in 1979-2010: first sign of ozone recovery
8 February, 2013 by Howard Roscoe, Jonathan Shanklin
A long-term ozone loss time series is necessary to understand the evolution of ozone in Antarctica. Therefore, we construct the time series using ground-based, satellite and bias-corrected multi-sensor reanalysis (MSR)…Read more on Antarctic ozone loss in 1979-2010: first sign of ozone recovery
Paleo ice flow and subglacial meltwater dynamics in Pine Island Bay, West Antarctica
8 February, 2013 by Claus-Dieter Hillenbrand, James Smith, Robert Larter
Increasing evidence for an elaborate subglacial drainage network underneath modern Antarctic ice sheets suggests that basal meltwater has an important influence on ice stream flow. Swath bathymetry surveys from previously…Read more on Paleo ice flow and subglacial meltwater dynamics in Pine Island Bay, West Antarctica
A new bipolar ice core record of volcanism from WAIS Divide and NEEM and implications for climate forcing of the last 2000 years
7 February, 2013 by Robert Mulvaney
Volcanism is a natural climate forcing causing short-term variations in temperatures. Histories of volcanic eruptions are needed to quantify their role in climate variability and assess human impacts. We present…The spatial scale of ozone depletion events derived from an autonomous surface ozone network in coastal Antarctica
6 February, 2013 by Anna Jones, Eric Wolff, Neil Brough
To probe the spatial extent of tropospheric ozone depletion events during Antarctic spring, a network of 10 autonomous ozone monitors was established around the Dronning Maud Land sector of Antarctica…High temporal resolution Br2, BrCl and BrO observations in coastal Antarctica
1 February, 2013 by Anna Jones, Neil Brough
There are few observations of speciated inorganic bromine in polar regions against which to test current theory. Here we report the first high temporal resolution measurements of Br2, BrCl and…Read more on High temporal resolution Br2, BrCl and BrO observations in coastal Antarctica
First geomorphological record and glacial history of an inter-ice stream ridge on the West Antarctic continental shelf
1 February, 2013 by Claus-Dieter Hillenbrand, James Smith, Robert Larter
Inter-ice stream areas cover significant portions of Antarctica's formerly glaciated shelves, but have been largely neglected in past geological studies because of overprinting by iceberg scours. Here, we present results…Wintertime water mass modification near an Antarctic ice front
1 February, 2013 by Keith Nicholls
Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here the authors present data from an instrumented Weddell seal that spent…Read more on Wintertime water mass modification near an Antarctic ice front
Estimating and managing blowout risk during access to subglacial Antarctic lakes
1 February, 2013 by Keith Makinson
As Antarctic subglacial lake research progresses to in situ exploration an important topic is the lake’s probable gas concentration. Depending on hydrological setting, subglacial lakes may contain large amounts of…Read more on Estimating and managing blowout risk during access to subglacial Antarctic lakes
Diversity trends of Bryophytes in continental Antarctica
1 February, 2013 by Peter Convey
Bryophytes exhibit a decline in species richness with latitude across the sub-Antarctic islands, Antarctic Peninsula and Antarctic continent, but not within the Antarctic continent itself. We analyzed diversity and biogeographic…Read more on Diversity trends of Bryophytes in continental Antarctica
Warming constrains bacterial community responses to nutrient inputs in a southern, but not northern, maritime Antarctic soil
1 February, 2013 by Kevin Newsham
We investigated the effects of increased soil temperature, water and nutrient availability on soil bacterial communities at Wynn Knolls on Signy Island (60 °S) in the northern maritime Antarctic and…Inferring sites of subglacial erosion using the Pb isotopic composition of ice-rafted feldspar: Examples from the Weddell Sea, Antarctica
1 February, 2013 by Victoria Peck
The delivery of ice-rafted debris (IRD) from glaciated margins is a function of ice sheet dynamics. Shifts in supply and sourcing of IRD can therefore identify episodes of ice sheet…Hydrogen peroxide and ecdysone in the cryoprotective dehydration strategy of Megaphorura Arctica(Onychiuridae: Collembola)
1 February, 2013 by Roger Worland, Melody Clark
The Arctic springtail, Megaphorura arctica, survives sub-zero temperatures in a dehydrated state via trehalose-dependent cryoprotective dehydration. Regulation of trehalose biosynthesis is complex; based in part on studies in yeast and…The non-native chironomid Eretmoptera murphyi in Antarctica: erosion of the barriers to invasion
1 February, 2013 by Kevin Hughes, Michael Thorne, Roger Worland, Peter Convey
Antarctica is the continent least affected by invasive species, but climate change and increasing human activity are increasing this threat. Antarctic terrestrial ecosystems generally have low biodiversity with simple community…Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula
1 February, 2013 by Norman Ratcliffe, Philip Trathan
Krill consumption by natural predators represents a critical link between surveys and models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea. Antarctic…Iron localization in Acarospora colonizing schist on Signy Island
1 February, 2013 by Helen Peat, Peter Convey
A small, inconspicuous lichen, Acarospora cf. badiofusca, was discovered colonizing ironstained quartz mica schists on the lower slope of Manhaul Rock, a recently exposed nunatak on the McLeod Glacier, Signy…Read more on Iron localization in Acarospora colonizing schist on Signy Island
Observations of the ophiuroids from the West Antarctic sector of the Southern Ocean
1 February, 2013 by Chester Sands, David Barnes, Huw Griffiths, Katrin Linse
Ophiuroids are a conspicuous and often dominant component of the Antarctic continental shelf benthos. Here we report on the ophiuroids collected from the Burdwood Bank, off the Patagonian Shelf, through…Read more on Observations of the ophiuroids from the West Antarctic sector of the Southern Ocean
Zonation in a cryptic Antarctic intertidal macrofaunal community
1 February, 2013
Despite the general view that the Antarctic intertidal conditions are too extreme to support obvious signs of macrofaunal life, recent studies have shown that intertidal communities can survive over annual…Read more on Zonation in a cryptic Antarctic intertidal macrofaunal community
Assessment of surface winds over the Atlantic, Indian, and Pacific Ocean sectors of the Southern Ocean in CMIP5 models: historical bias, forcing response, and state dependence
30 January, 2013 by Andrew Meijers, Emily Shuckburgh, Jean-Baptiste Sallee, Thomas Bracegirdle, Tony Phillips
An assessment of the fifth Coupled Models Intercomparison Project (CMIP5) models' simulation of the near-surface westerly wind jet position and strength over the Atlantic, Indian and Pacific sectors of the…Prospects for a sustainable increase in the availability of long chain omega 3s: lessons from the Antarctic krill fishery.
30 January, 2013 by Simeon Hill
• The global summit on nutrition, health and human behaviour (GSNHHB) identified the objective of increasing “the availability of long chain Omega‐3 (especially docosahexaenoic acid) for human consumption in a…Bunched black (and grouped grey) swans: Dissipative and non-dissipative models of correlated extreme fluctuations in complex geosystems
28 January, 2013
I review the hierarchy of approaches to complex systems, focusing particularly on stochastic equations. I discuss how the main models advocated by the late Benoit Mandelbrot fit into this classification,…Eemian interglacial reconstructed from a Greenland folded ice core
24 January, 2013 by Emilie Capron, Eric Wolff, Robert Mulvaney
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland…Read more on Eemian interglacial reconstructed from a Greenland folded ice core
Transcriptome of the dead: characterisation of immune genes and marker development from necropsy samples in a free-ranging marine mammal
24 January, 2013 by Jaume Forcada, Michael Thorne, Philip Trathan
Background Transcriptomes are powerful resources, providing a window on the expressed portion of the genome that can be generated rapidly and at low cost for virtually any organism. However, because…Management of Antarctic Specially Protected Areas: permitting, visitation and information exchange practices
21 January, 2013 by Kevin Hughes
Antarctic Specially Protected Areas (ASPAs) represent the highest level of area protection within the Antarctic Treaty area. To reduce environmental impacts, ASPA visitors must comply with the Area's management plan…Scaling down the analysis of seabird-fishery interactions
21 January, 2013 by Richard Phillips
Seabird-fishery interactions are currently a major issue in marine conservation management. A common approach to quantifying the extent of interactions is to overlay density maps of seabird and fishing activities…Read more on Scaling down the analysis of seabird-fishery interactions
Early Cenozoic differentiation of polar marine faunas
16 January, 2013 by Alistair Crame
The widespread assumption that the origin of polar marine faunas is linked to the onset of major global cooling in the Late Eocene – Early Oligocene is being increasingly challenged.…Read more on Early Cenozoic differentiation of polar marine faunas
Diversity, ecology and biogeochemistry of cyst-forming Acantharia (Radiolaria) in the oceans
11 January, 2013 by Geraint Tarling
Marine planktonic organisms that undertake active vertical migrations over their life cycle are important contributors to downward particle flux in the oceans. Acantharia, globally distributed heterotrophic protists that are unique…Multiple-colony winter habitat use by murres Uria spp. in the Northwest Atlantic Ocean: implications for marine risk assessment
9 January, 2013 by Richard Phillips
Limited knowledge of year-round seabird distributions hinders efforts to assess consequences of anthropogenic threats and climate-induced changes in the marine environment. In particular, there is urgent need to understand how…Behavioural mapping of a pelagic seabird: combining multiple sensors and a hidden Markov model reveals the distribution of at-sea behaviour
6 January, 2013 by Richard Phillips
The use of miniature data loggers is rapidly increasing our understanding of the movements and habitat preferences of pelagic seabirds. However, objectively interpreting behavioural information from the large volumes of…Antarctic Thresholds – Ecosystem Resilience and Adaptation” (AnT-ERA), a new SCAR-biology programme
1 January, 2013 by Eugene Murphy, Lloyd Peck, Thomas Bracegirdle
Stresses on Antarctic ecosystems result from environmental change, including extreme events, and from (other) human impacts. Consequently, Antarctic habitats are changing, some at a rapid pace while others are relatively…Variable temperature effects of Open Top Chambers at polar and alpine sites explained by irradiance and snow depth
1 January, 2013 by Peter Convey
Environmental manipulation studies are integral to determining biological consequences of climate warming. Open Top Chambers (OTCs) have been widely used to assess summer warming effects on terrestrial biota, with their…On the robustness of emergent constraints used in multimodel climate change projections of Arctic warming
1 January, 2013 by Thomas Bracegirdle
Statistical relationships between future and historical model runs in multimodel ensembles (MMEs) are increasingly exploited to make more constrained projections of climate change. However, such emergent constraints may be spurious…Combining ice core records and ice sheet models to explore the evolution of the East Antarctic Ice sheet during the Last Interglacial period
1 January, 2013 by Eric Wolff
This study evaluates the influence of plausible changes in East Antarctic Ice sheet (EAIS) thickness and the subsequent glacio-isostatic response as a contributor to the Antarctic warming indicated by ice…POES satellite observations of EMIC-wave driven relativistic electron precipitation during 1998-2010
1 January, 2013 by Mark Clilverd
[1] Using six Polar Orbiting Environmental Satellites (POES) satellites that have carried the Space Environment Module-2 instrument package, a total of 436,422 individual half-orbits between 1998 and 2010 were inspected…Energetic charged particles above thunderclouds
1 January, 2013 by Richard Horne
The French government has committed to launch the satellite TARANIS to study transient coupling processes between the Earth’s atmosphere and near-Earth space. The prime objective of TARANIS is to detect…Read more on Energetic charged particles above thunderclouds
Grounding-line retreat of the West Antarctic Ice Sheet from inner Pine Island Bay
1 January, 2013 by David Vaughan, Claus-Dieter Hillenbrand, James Smith, Robert Larter
Ice loss from the marine-based, potentially unstable West Antarctic Ice Sheet (WAIS) contributes to current sea-level rise and may raise sea level by ≤3.3 m or even ≤5 m in…Read more on Grounding-line retreat of the West Antarctic Ice Sheet from inner Pine Island Bay
A new brooding species of brittle-star (Echinodermata: Ophiuroidea) from Antarctic waters
1 January, 2013 by Chester Sands
A new brittle star attributable to the genus Ophiacantha is described from Antarctic waters, in the diffuse limits of the Antarctic Polar Front at Shag Rocks, South Georgia. The new…Comparison of the structure and function of Southern Ocean regional ecosystems: The Antarctic Peninsula and South Georgia
1 January, 2013 by Eugene Murphy, Emma Young, Geraint Tarling, Jonathan Watkins, Nadine Johnston, Philip Trathan, Peter Fretwell, Rachel Cavanagh, Sally Thorpe, Simeon Hill
The ocean ecosystems around the west Antarctic Peninsula and South Georgia are two of the best described regional ecosystems of the Southern Ocean. They therefore provide a useful basis for…Strong dynamical modulation of the cooling of the polar stratosphere associated with the Antarctic ozone hole
1 January, 2013 by Andrew Orr, Howard Roscoe, Scott Hosking, Thomas Bracegirdle
A model simulation forced by prescribed ozone depletion shows strong dynamical modulation of the springtime cooling of the polar stratosphere associated with the Antarctic ozone hole. The authors find that…An unusual hermaphrodite reproductive trait in the Antarctic brooding bivalve Lissarca miliaris (Philobryidae) from the Scotia Sea, Southern Ocean
1 January, 2013 by Katrin Linse
The Antarctic marine environment is extreme in its low temperatures and short periods of primary productivity. Invertebrates must therefore adapt to maximise reproductive output where low temperature and limited food…The justification, design and implementation of Ecological Risk Assessments of the effects of fishing on seabirds
1 January, 2013 by Richard Phillips
Many marine species are threatened by high levels of incidental mortality in fisheries. This paper reviews the design of selected recent, detailed Ecological Risk Assessments (ERAs) of the effects of…A horizon scan of global conservation issues for 2013
1 January, 2013 by Lloyd Peck
This paper presents the findings of our fourth annual horizon-scanning exercise, which aims to identify topics that increasingly may affect conservation of biological diversity. The 15 issues were identified via…Read more on A horizon scan of global conservation issues for 2013
Comparison of methods for determining key marine areas from tracking data
1 January, 2013 by Claire Tancell, Geraint Tarling, Richard Phillips
There is an urgent need to identify key marine areas for conservation, particularly in the high seas. A range of techniques have been applied to tracking data from higher predators,…Read more on Comparison of methods for determining key marine areas from tracking data
How do cephalopods become available to seabirds: can fish gut contents from tuna fishing vessels be a major food source of deep-dwelling cephalopods?
1 January, 2013
Cephalopods are important prey for numerous seabird species. However, the physical mechanisms by which cephalopods (particularly species considered as deep-dwelling) become available to seabirds are poorly understood, and it has…Heat-flow determinations of basement age in small oceanic basins of the southern central Scotia Sea
1 January, 2013 by Robert Larter
Results are reported from seven heat flow stations in small basins of the southern part of the central Scotia Sea (CSS), undertaken in order to determine basement ages. The basins…Anthropogenic impacts on sub-Antarctic and Antarctic islands and the adjacent marine environments
1 January, 2013 by Peter Convey
The impacts of human activities are more apparent at present in the sub-Antarctic than in the Antarctic. The sub-Antarctic islands, despite their physical isolation in the Southern Ocean, are generally…Revised assessment for Oceania humpbacks: survey design considerations and power analysis
1 January, 2013 by Jennifer Jackson
The Oceania population of humpback whales, comprising sub-stocks E2, E3, and F, was heavily depleted by whaling operations in the 20th century and is now classed as Endangered by the…Connecting biodiversity data during the IPY: the path towards e-polar science
1 January, 2013 by Huw Griffiths
The International Polar Year (IPY) was a unprecedented effort in polar research committing thousands of participants from many nations (Carlson 2010), with a common objective: to describe and understand complex…Read more on Connecting biodiversity data during the IPY: the path towards e-polar science
Pb isotopic domains from the Indian Ocean sector of Antarctica: implications for past Antarctica-India connections
1 January, 2013
New feldspar lead isotope compositions of crystalline rocks from the Indian Ocean sector of East Antarctica, in conjunction with the review of data from elsewhere within the continent and from…A potential feedback approach to ecosystem-based management: model predictive control of the Antarctic krill fishery
1 January, 2013 by Simeon Hill
CCAMLR aims to develop a feedback approach to aid ecosystem-based management (EBM) of Antarctic krill fisheries. It is important to assess whether a feedback approach is likely to achieve the…The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
1 January, 2013 by Simeon Hill
There is a global need to develop strategic frameworks for assessing uncertainty in ecosystem dynamics models. Such models have been used within CCAMLR to evaluate options for managing the Antarctic…Population modelling of humpback whales in East Australia (BSE1) and Oceania (BSE2, BSE3, BSF2)
1 January, 2013 by Jennifer Jackson
Humpback sub-stocks BSE1 (East Australia), BSE2 (New Caledonia), BSE3 (Tonga) and BSF2 (French Polynesia) show significant genetic differentiation, yet share common high latitude feeding grounds between 130E-100W and were subject…Experimental and numerical study of the hydrodynamics of the western sector of Ria Formosa
1 January, 2013
The western sector of Ria Formosa, a lagoon system in the south of Portugal, represents approximately 90% of the total tidal prism of the lagoon and includes three inlets. Two…Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
1 January, 2013 by Philip Trathan, Susie Grant
Recent rapid climate change is now well documented in the Antarctic, particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse;…Gyroresonant interactions between the radiation belt electrons and whistler mode chorus waves in the radiation environments of Earth, Jupiter, and Saturn: A comparative study
20 December, 2012 by Richard Horne
In the current study we perform a comparative analysis of the gyroresonant interactions of whistler mode waves with radiation belt electrons in the magnetospheres of Earth, Jupiter, and Saturn. Our…Higher precision estimates of regional polar warming by ensemble regression of climate model projections
19 December, 2012 by Thomas Bracegirdle
This study presents projections of twenty-first century wintertime surface temperature changes over the high-latitude regions based on the third Coupled Model Inter-comparison Project (CMIP3) multi-model ensemble. The state-dependence of the…The effect of energetic electron precipitation on middle mesospheric night-time ozone during and after a moderate geomagnetic storm
19 December, 2012 by David Newnham
Using a ground-based microwave radiometer at Troll Station, Antarctica (72°S, 2.5°E, L = 4.76), we have observed a decrease of 20–70% in the mesospheric ozone, coincident with increased nitric oxide,…A reconciled estimate of ice sheet mass balance
19 December, 2012 by David Vaughan, Hamish Pritchard
We combined an ensemble of satellite altimetry, interferometry, and gravimetry data sets using common geographical regions, time intervals, and models of surface mass balance and glacial isostatic adjustment to estimate…Read more on A reconciled estimate of ice sheet mass balance
Ice-stream stability on a reverse bed slope
18 December, 2012 by Claus-Dieter Hillenbrand
Marine-based ice streams whose beds deepen inland are thought to be inherently unstable. This instability is of particular concern because significant portions of the marinebased West Antarctic and Greenland ice…Biological processes on glacier and ice sheet surfaces
18 December, 2012
Glaciers and ice sheets are melting in response to climate warming. Whereas the physical behaviour of glaciers has been studied intensively, the biological processes associated with glaciers and ice sheets…Read more on Biological processes on glacier and ice sheet surfaces
Unusual Southern Hemisphere tree growth patterns induced by changes in the Southern Annular Mode
18 December, 2012 by Gareth Marshall
Recent changes in the summer climate of the Southern Hemisphere extra-tropics are primarily related to the dominance of the positive phase of the Southern Annular Mode. This shift in the…Dietary variation in chick-feeding and self-provisioning Cape Petrel Daption capense and Snow Petrel Pagodroma nivea at Signy Island, South Orkney Islands, Antarctica
17 December, 2012 by Philip Trathan
Food web knowledge is a prerequisite for adequate resource management in the Antarctic ecosystem. Accurate dietary specifications for the major consumers within the Antarctic ecosystem are needed. Procellariid species are…Testing the metabolic theory of ecology
17 December, 2012 by Andrew Clarke
The metabolic theory of ecology (MTE) predicts the effects of body size and temperature on metabolism through considerations of vascular distribution networks and biochemical kinetics. MTE has also been extended…Oceanographers’ contribution to climate modelling and prediction: progress to date and a future perspective
17 December, 2012 by Emily Shuckburgh
The ocean plays an essential role in determining aspects of the climate through its influence on coupled processes involving the atmosphere, cyrosphere and biogeochemistry, including budgets of heat and carbon…Human influence on extratropical Southern Hemisphere precipitation
15 December, 2012 by Gareth Marshall
Observations of extratropical Southern Hemisphere austral summer precipitation over recent decades show mid-latitude drying and high-latitude moistening. Here we show that the observed precipitation trends in two datasets are inconsistent…Read more on Human influence on extratropical Southern Hemisphere precipitation
Changes in distribution, relative abundance, and species composition of large whales around South Georgia from opportunistic sightings: 1992 to 2011
13 December, 2012 by Andrew Wood
To examine the general population trends of large whales in South Georgia waters, 2 opportunistic data sets of sightings of large whales from 1991 to 2010 around South Georgia were…Reliability Case Notes No. 7. Risk assessment of the hot-water drilling system for accessing subglacial Lake Ellsworth
1 December, 2012 by Andrew Tait, Keith Makinson
The exploration of Subglacial Lake Ellsworth is a high profile project funded by the Natural Environment Research Council. Clean access to the lake will be provided by a hot-water drilling…