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FISHGLOB: a collaborative infrastructure to bridge the gap between scientific monitoring and marine biodiversity conservation

10 May, 2025 by Martin Collins

Large-scale biodiversity assessments and conservation applications require integrated and up-to-date datasets across regions. In the oceans, monitoring is fragmented, which affects knowledge exchange and usage. Among existing monitoring programs, scientific…

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Living with uncertainty: Using multi-model large ensembles to assess emperor penguin extinction risk for the IUCN Red List

1 May, 2025 by Philip Trathan

Improved methods for identifying species at risk are needed to strengthen climate change vulnerability assessments, as current estimates indicate that up to one million species face extinction due to environmental…

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Marine snow as vectors for microplastic transport: Multiple aggregation cycles account for the settling of buoyant microplastics to deep‐sea sediments

25 April, 2025

Many studies have reported the paradoxical observation of high concentrations of low‐density microplastics (plastic particles < 5 mm) in deep‐sea sediments despite their buoyancy. The incorporation of buoyant microplastics into…

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Change in iceberg calving behaviour preceded disintegration of North Sea ice shelves during the last deglaciation

24 April, 2025 by Claus-Dieter Hillenbrand, James Kirkham, Kelly Hogan, Robert Larter

Understanding how regime shifts in iceberg calving behavior affect ice shelf stability remains a challenge for numerical models. This is an important question as we consider the fate of the…

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Untangling the Complexities of Larval Antarctic Krill Overwintering Success Under Climate Change

18 April, 2025 by Alison Cleary, Eugene Murphy, Nadine Johnston, Sally Thorpe, Simeon Hill

Antarctic krill (Euphausia superba) are integral to Southern Ocean pelagic ecosystems. Winters with extensive sea ice have been linked to high post-larval krill recruitment the following spring, suggesting that sea…

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Provenance and correlation of Late Permian successions from the Falkland/Malvinas Islands with West Gondwana: implications for a Natal Embayment palaeo-location

16 April, 2025 by Dominic Hodgson, Teal Riley

Detrital zircon U-Pb and Lu-Hf data from the youngest (upper Permian) sedimentary succession of the Falkland/Malvinas Islands is used to constrain depositional age, provenance and palaeogeography, and test the Natal…

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Where do we want the glaciological community to be in 2073? EDI challenges and visions from the 2023 Karthaus Summer School

14 April, 2025 by Katherine Turner

Despite the increased awareness and action towards Equality, Diversity, and Inclusion (EDI), the glaciological community still experiences and perpetuates examples of exclusionary and discriminatory behavior. We here discuss the challenges…

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Proximate measurements of a giant iceberg reveal the effects of meltwater on upper ocean properties [Research briefing]

7 April, 2025 by Alexander Brearley, Kate Hendry, Natasha Lucas

Measurements from a robotic underwater vehicle reveal the impacts of meltwater from the giant iceberg A-68A on the properties of the surrounding Southern Ocean. In addition to increasing surface stratification…

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Feasibility of using very high-resolution satellite imagery to monitor Tristan albatrosses Diomedea dabbenena on Gough Island

4 April, 2025 by Ellen Bowler, Marie Attard, Peter Fretwell, Richard Phillips

The Tristan albatross Diomedea dabbenena is a Critically Endangered species that breeds exclusively on remote islands in the South Atlantic Ocean. Although the population continues to decline, regular on-the-ground monitoring…

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Optimisation of diesel-degradation and growth kinetic modelling by Antarctic Janthinobacterium lividum

3 April, 2025 by Peter Convey

Fuel spills pose significant pollution threats to Antarctic terrestrial environments. Biological remediation offers a sustainable solution for restoring these polluted sites. Indigenous microorganisms capable of degrading diesel hydrocarbons at low…

Read more on Optimisation of diesel-degradation and growth kinetic modelling by Antarctic Janthinobacterium lividum

Twenty‐thousand‐year gap between deglaciation and peat formation on sub‐Antarctic Marion Island attributed to climate and sea level change

1 April, 2025 by Alexander Whittle, Dominic Hodgson

Radiocarbon dating of basal peats has been a key factor in determining minimum ages for deglaciation on sub-Antarctic islands. On Marion Island, peat bogs dominate the landscape below 300 m a.s.l.,…

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Annual trends in mercury contamination are associated with changing trophic niches of giant petrels

1 April, 2025 by Danielle Buss, Jaume Forcada, Richard Phillips, William Mills

Annual variation in prey availability can influence seabird diets and hence their exposure to pollutants, including mercury (Hg). Among seabirds, those species that scavenge carrion of marine mammals and other…

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The role of substrate characteristics and temperature for potential non-native plant establishment in Maritime Antarctic ecosystems

1 April, 2025 by Peter Convey

Polar ecosystems are threatened by non-native plants, and this risk will increase with climate warming. Non-native plant growth depends on Antarctic environmental conditions and substrates, but these influences are poorly…

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Desmonostoc cockrellii sp. nov. (Nostocales, Cyanobacteria): a new record of a subaerophytic species from The Habitat Penang Hill, Malaysia

1 April, 2025 by Peter Convey

Subaerophytic cyanobacterial diversity is poorly known in Malaysian rainforests generally and at Penang Hill specifically. A new subaerophytic species of cyanobacteria, Desmonostoc cockrellii sp. nov., was isolated from rocky surfaces…

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Developing a Southern Ocean Marine Ecosystem Model Ensemble to Assess Climate Risks and Uncertainties

20 March, 2025 by Eugene Murphy, Patrick Keith, Simeon Hill

Climate change could irreversibly modify Southern Ocean ecosystems. Marine ecosystem model (MEM) ensembles can assist policy making by projecting future changes and allowing the evaluation and assessment of alternative management…

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Subglacial landscape formation and sediment discharge: relating basal conditions to bedform dimensions and properties at Rutford Ice Stream, West Antarctica

20 March, 2025 by Alex Brisbourne, Andy Smith, Rebecca Schlegel

Basal conditions that facilitate fast ice flow are still poorly understood and their parameterization in ice‐flow models results in high uncertainties in ice‐flow and consequent sea‐level rise projections. Direct observations…

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What can lithics tell us about hominin technology’s ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

15 March, 2025 by Teal Riley

The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat…

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Use of excess meltwater from continuous flow analysis systems for the analysis of low concentration insoluble microparticles in ice cores

13 March, 2025 by Claire Allen, Dieter Tetzner, Jack Humby, Liz Thomas

Low-concentration insoluble microparticles that are preserved in ice cores offer valuable information for reconstructing past environmental changes. However, their low concentrations and limited sample availability present challenges for extraction and…

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Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica

10 March, 2025 by Alice Fremand, Andy Smith, David Vaughan, Ed King, Elena Field, Fausto Ferraccioli, Hugh Corr, Hamish Pritchard, James Kirkham, Peter Fretwell, Richard Hindmarsh, Tom Jordan, Richard Hindmarsh

We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60 °S. Bedmap3 incorporates and…

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Carbon dioxide fluxes associated with prokaryotic and eukaryotic communities in ice-free areas on King George Island, Maritime Antarctica

10 March, 2025 by Peter Convey

Background and Methods: We assessed the prokaryotic and eukaryotic diversity present in non-vegetated and vegetated soils on King George Island, Maritime Antarctic, in combination with measurements of carbon dioxide fluxes.…

Read more on Carbon dioxide fluxes associated with prokaryotic and eukaryotic communities in ice-free areas on King George Island, Maritime Antarctica

First report of vivipary in Deschampsia antarctica: a new insight into Antarctic plant reproductive strategies

6 March, 2025 by Peter Convey

In the extreme conditions of Antarctica two native vascular plants are present, Colobanthus quitensis (Kunth) Bartl. (Caryophyllaceae) and Deschampsia antarctica Desv. (Poaceae), distributed along the western Antarctic Peninsula and the…

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Evaluating the resilience of Antarctic echinoderms to Southern Ocean freshening: short- and long-term responses.

5 March, 2025 by Nicholas Barrett

Climate change is impacting marine ecosystems worldwide, presenting a significant threat to biodiversity. In the Southern Ocean, organisms are facing increasing challenges due to warming, ocean acidification, reduced sea-ice cover,…

Read more on Evaluating the resilience of Antarctic echinoderms to Southern Ocean freshening: short- and long-term responses.

Inferring Species Interactions From Co-occurrence Networks With Environmental DNA Metabarcoding Data in a Coastal Marine Food Web

4 March, 2025 by Elizabeth Boyse

A good understanding of biotic interactions is necessary to accurately predict the vulnerability of ecosystems to climate change. Recently, co-occurrence networks built from environmental DNA (eDNA) metabarcoding data have arisen…

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Energetic Electron Precipitation From the Radiation Belts: Geomagnetic and Solar Wind Proxies for Precipitation Flux Magnitudes

3 March, 2025 by Aaron Hendry, Mark Clilverd

Previously the geomagnetic Ap index has been used as a proxy to produce empirical energetic electron precipitation (EEP) forcing representations suitable for incorporation into coupled-climate model runs. The long-running Ap…

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