Evidence map›Paper›PMID 40599829›Full record

ArticlePNAS nexus2025

Impacts of Antarctic summer sea-ice extremes.

Edward W Doddridge, William R Hobbs, Matthis Auger, Philip W Boyd, Sean M T Chua, Sue Cook, Stuart Corney, Louise Emmerson, Alexander D Fraser, Petra Heil and 15 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in PNAS nexus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

25 authors.

Edward W DoddridgeAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0002-6097-5729
William R HobbsAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0002-2061-0899
Matthis AugerInstitute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-6228-5732
Philip W BoydAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-7850-1911
Sean M T ChuaAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.
Sue CookAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-9878-4218
Stuart CorneyAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0002-8293-0863
Louise EmmersonAustralian Antarctic Division, Kingston, Tasmania 7050, Australia.ORCID https://orcid.org/0000-0001-7336-0961
Alexander D FraserAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0003-1924-0015
Petra HeilAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0003-2078-0342
Nat KellyAustralian Antarctic Division, Kingston, Tasmania 7050, Australia.ORCID https://orcid.org/0000-0002-9664-354X
Delphine LannuzelAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-6154-1837
Xueke LiInstitute at Brown for Environment and Society, Brown University, Providence, RI 02912, USA.ORCID https://orcid.org/0000-0001-6755-9229
Guillaume LinigerARC Centre of Excellence for Climate Extremes, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-5380-5425
Robert A MassomAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0003-1533-5084
Amelie MeyerARC Centre of Excellence for Climate Extremes, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0003-0447-795X
Phillip ReidAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.
Colin SouthwellAustralian Antarctic Division, Kingston, Tasmania 7050, Australia.ORCID https://orcid.org/0000-0002-6017-9669
Paul SpenceAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0001-5156-2204
Anton SteketeeAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0009-0002-9081-4106
Kerrie M SwadlingAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0002-7620-841X
Nathan TederSchool of Computer and Mathematical Sciences, University of Adelaide, Adelaide, South Australia 5005, Australia.ORCID https://orcid.org/0000-0001-6058-4317
Barbara WieneckeAustralian Antarctic Division, Kingston, Tasmania 7050, Australia.ORCID https://orcid.org/0000-0002-1505-164X
Pat WongpanAustralian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0002-7113-8221
Kaihe YamazakiInstitute for Marine and Antarctic Studies, University of Tasmania, nipaluna/Hobart, Tasmania 7001, Australia.ORCID https://orcid.org/0000-0003-3631-5365

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Antarctic sea ice plays many crucial roles in the physical environments and ecosystems of Antarctica and the Southern Ocean. In this study, we synthesize the physical, biogeochemical, ecosystem, and societal impacts of summers with extreme low Antarctic sea-ice coverage. These extreme events result in the loss of multiyear landfast ice and changes in sea-ice seasonality. Following extreme low sea-ice events, we find surface warming of the Southern Ocean and changes to the formation rate of Antarctic Intermediate Water, likely affecting heat and carbon uptake. Ice-shelf calving is negatively correlated with sea-ice area, so that years with less sea ice show increased calving. Prolonged open water affects the magnitude and seasonality of surface-phytoplankton blooms. The impacts on higher trophic levels are species-specific and occur through habitat loss and changes to prey availability. Extreme sea-ice lows will adversely impact krill, a foundational prey species that relies on sea ice for nourishment and refuge. The loss of stable landfast ice in austral spring and summer hampers Antarctic operations and resupply missions. Understanding the full impacts of recent, and future, sea-ice extremes is of utmost importance and requires an enhanced observational network that spans the physical and ecological systems of Antarctica and the Southern Ocean.

Indexed as

Antarcticaextremesimpactssea iceSouthern Ocean

Identifiers

PMID40599829
PMCPMC12210234

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.