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Gareth Phoenix

@garethphoenix.bsky.social
803 followers 271 following 34 posts

Scientist. Climate change and ecosystems, Arctic, boreal, uplands, plant ecology, biogeochemistry, biodiversity. I like to run when I'm not injured.

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Reposted by Gareth Phoenix
Ecological Continuity Trust (ECT) @ect-uk.bsky.social · 25/02/2026
Wardlow Hay Cop, #England is the #LTESiteOfTheWeek. @garethphoenix.bsky.social from @sheffielduni.bsky.social is looking at the effects of #nitrogen on #grassland bit.ly/WardlowHay Listen to our #interview #podcast with Gareth bit.ly/3sQ7jNW @naturalengland.bsky.social 🌏
LTE Site of the Week: Wardlow Hay Cop, England. A landscape photo showing fields and a hill in the background where there are blue skies. Running since 1990. Gareth Phoenix, University of Sheffield. Icons for grassland and nutrients.
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Reposted by Gareth Phoenix
PLOS Climate @plosclimate.org · 04/12/2025
On day 4 of our #PLOSClimateCountdown, we're highlighting a Review article by @garethphoenix.bsky.social and colleagues: "Browning events in Arctic ecosystems: Diverse causes with common consequences" 🔗 journals.plos.org/climate/arti...
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Gareth Phoenix @garethphoenix.bsky.social · 17/10/2025
Hi @bes-aquaticgroup.bsky.social we're keen to reach out to the freshwater community for this. Any chance of a repost? Thanks 🙂
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Gareth Phoenix @garethphoenix.bsky.social · 17/10/2025
🚨Calling all U.K. Arctic terrestrial scientists. "UK Arctic terrestrial science strengths and priorities workshop" to discuss and then produce a prospectus outlining the UK’s “Strengths & Priorities” in Arctic terrestrial research. Info and registration link here 👇 drive.google.com/file/d/1HV0c...
drive.google.com
UK Arctic terrestrial science workshop.pdf
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Reposted by Gareth Phoenix
Katie Field @katiefield4.bsky.social · 03/10/2025
If you’re looking for a PhD studentship in some really exciting areas of plant science 🌿 take a look at this year’s Sainsbury PhD studentships - you could come and study orchid mycorrhizas 🌸🍄 with me & @garethphoenix.bsky.social! www.findaphd.com/phds/program...
findaphd.com
FindAPhD : Prestigious Sainsbury PhD Studentships in plant sciences at Gatsby Charitable Foundation
Apply for a PhD: Prestigious Sainsbury PhD Studentships in plant sciences at Gatsby Charitable Foundation
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Gareth Phoenix @garethphoenix.bsky.social · 17/09/2025
Job alert 🚨 Technician post in soil carbon at the University of Sheffield @sheffieldpps.bsky.social supporting natural capital assessment in South Yorkshire, UK jobsite.sheffield.ac.uk/job/Technici...
jobsite.sheffield.ac.uk
Technician: Research
Technician: Research
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Plants, Photosynthesis and Soil @sheffieldpps.bsky.social · 08/05/2025
7. The Importance of Nutrients in Controlling How Much Ecosystems Can Slow the Rate of Rising CO₂ How much can ecosystems slow climate change? Study how nutrients regulate carbon storage in global ecosystems. Led by Catriona Macdonald (HIE) bit.ly/434xNOd #CarbonCycle #EcosystemScience #AcademicSky
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The Importance of Nutrients in Controlling How Much Ecosystems Can Slow the Rate of Rising CO₂ at Western Sydney University on FindAPhD.com
PhD Project - The Importance of Nutrients in Controlling How Much Ecosystems Can Slow the Rate of Rising CO₂ at Western Sydney University, listed on FindAPhD.com
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Plants, Photosynthesis and Soil @sheffieldpps.bsky.social · 08/05/2025
Applications open for our International Dual PhD Awards in Plant & Soil Sciences! Train in world-class labs across @sheffieldpps.bsky.social and @westsyduhie.bsky.social and spend time at both institutes. bit.ly/4375M8D #PhDopportunity #PlantScience #SoilScience #Sustainability #AcademicSky
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World class training - International dual award PhDs in Plant & Soil Science now open
These new studentships offer a unique opportunity to join a vibrant and collaborative research community spanning two world-class institutions in Sheffield, UK and Sydney, Australia.
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Gareth Phoenix @garethphoenix.bsky.social · 08/05/2025
🚨 PhD alert. PhD opportunity studying how nutrient availability impacts the ability of ecosystems to absorb more CO2 as CO2 levels rise. With Catriona MacDonald and Ben Smith at Western Sydney University and myself here @sheffieldpps.bsky.social Sheffield www.findaphd.com/phds/project...
findaphd.com
The Importance of Nutrients in Controlling How Much Ecosystems Can Slow the Rate of Rising CO₂ at Western Sydney University on FindAPhD.com
PhD Project - The Importance of Nutrients in Controlling How Much Ecosystems Can Slow the Rate of Rising CO₂ at Western Sydney University, listed on FindAPhD.com
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Reposted by Gareth Phoenix
Mika Rantanen @mikarantane.bsky.social · 28/04/2025
Excited to share that our new paper “Summer 2024 in northern Fennoscandia was very likely the warmest in 2000 years” has been published in npj Climate and Atmospheric Science! See the open-access paper from doi.org/10.1038/s416... Short thread 👇
doi.org
Summer 2024 in northern Fennoscandia was very likely the warmest in 2000 years - npj Climate and Atmospheric Science
npj Climate and Atmospheric Science - Summer 2024 in northern Fennoscandia was very likely the warmest in 2000 years
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Dr. Mariana García Criado @nanitundra.bsky.social · 30/04/2025
🌸Plant diversity dynamics over space and time in a warming Arctic 🌸 Our new study @nature.com analysed plant diversity change in >2000 tundra plots over 4 decades. We found that plants changed unevenly, mostly driven by warming and biotic interactions. www.nature.com/articles/s41... 🧵 (1/7) 🌐🧪🌱🌍
Illustration of a Greenlandic landscape, showing in the foreground Rhododendron lapponicum on a cliff, with sea ice and icebergs in the background. Illustration by Alberto S. Ballesteros (@asbillustration.bsky.social)
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Gareth Phoenix @garethphoenix.bsky.social · 02/05/2025
Interesting paper: Increases in Arctic Extreme Climatic Events Are Linked to Negative Fitness Effects on the Local Biota. doi.org/10.1111/gcb....
doi.org
Increases in Arctic Extreme Climatic Events Are Linked to Negative Fitness Effects on the Local Biota
The Arctic harbours uniquely adapted biodiversity and plays an important role in climate regulation. Strong warming trends in the terrestrial Arctic have been linked to an increase in aboveground bio....
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Gareth Phoenix @garethphoenix.bsky.social · 02/05/2025
Interesting paper: Tundra Plant Canopies Gradually Close Over Three Decades While Cryptogams Persist doi.org/10.1111/gcb.... As the authors point out, "These results call into question the dominant dogma that cryptogams will decline with increases in vascular plant abundance" 🤯
doi.org
Tundra Plant Canopies Gradually Close Over Three Decades While Cryptogams Persist
Two sites in northern Alaska representative of the circumpolar tundra biome were periodically sampled over more than three decades. Plant canopies both grew taller and increased in complexity while m...
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Gareth Phoenix @garethphoenix.bsky.social · 11/04/2025
New paper: The changing face of the Arctic: four decades of greening and implications for tundra ecosystems www.frontiersin.org/journals/env...
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Gareth Phoenix @garethphoenix.bsky.social · 10/02/2025
Interesting paper: Wildfires offset the increasing but spatially heterogeneous Arctic–boreal CO2 uptake www.nature.com/articles/s41...
nature.com
Wildfires offset the increasing but spatially heterogeneous Arctic–boreal CO2 uptake - Nature Climate Change
How the carbon stocks of the Arctic–Boreal Zone change with warming is not well understood. Here the authors show that wildfires and large regional differences in net carbon fluxes offset the overall ...
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Edge O. Erin @edgeoerin.com · 04/02/2025
An important Starter Pack that could use your support in following, reposting, or by tagging scientists, locals, key stakeholders, and Arctic-centric entities that deserve to be represented. Thank you. go.bsky.app/KxURBR1
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Anna Virkkala @annvirkk.bsky.social · 28/01/2025
We are looking for a grant-funded doctoral resarcher on a project focusing on how tree and shrub expansion into the tundra impact biodiversity and carbon balance @Department of Geosciences and Geography @helsinkiuni.bsky.social! DM me if you are interested, and please share!
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Gareth Phoenix @garethphoenix.bsky.social · 28/01/2025
Our review paper “Browning events in Arctic ecosystems: diverse causes with common consequences” is out in @plosclimate.org journals.plos.org/climate/arti... @sheffieldpps.bsky.social, @robertgbjork.bsky.social, @scootjd.bsky.social, @thissideofthearctic.org, @arctic-carolina.bsky.social
journals.plos.org
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PLOS Climate @plosclimate.org · 27/01/2025
A new PLOS Climate Review article by @garethphoenix.bsky.social and colleagues brings together understanding of browning events in Arctic ecosystems to compare their impacts and rates of recovery, and likely future changes in frequency and distribution journals.plos.org/climate/arti...
journals.plos.org
Browning events in Arctic ecosystems: Diverse causes with common consequences
Arctic ecosystems are experiencing extreme climatic, biotic and physical disturbance events that can cause substantial loss of plant biomass and productivity, sometimes at scales of >1000 km2. Collect...
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Gareth Phoenix @garethphoenix.bsky.social · 22/01/2025
Interesting paper: Increasing certainty in projected local extreme precipitation change. Some regions are going to have big increases in annual maximum daily precipitation, and this is now known with greater certainty. www.nature.com/articles/s41...
nature.com
Increasing certainty in projected local extreme precipitation change - Nature Communications
This study presents more accurate future extreme precipitation projections at local scales constrained by past warming observations using an adaptative emergent constraint approach.
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Gareth Phoenix @garethphoenix.bsky.social · 15/01/2025
Interesting paper: Substantial and overlooked greenhouse gas emissions from deep Arctic lake sediment. Carbon release from deep sediment permafrost thaw (20m in this study) may be much more important for changing climate than thought. www.nature.com/articles/s41...
nature.com
Substantial and overlooked greenhouse gas emissions from deep Arctic lake sediment - Nature Geoscience
Deep permafrost soils produce comparable amounts of greenhouse gases as shallow soils in response to warming, according to incubation experiments of deep Arctic lake sediments.
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Gareth Phoenix @garethphoenix.bsky.social · 10/01/2025
"Waning snowfields have transformed into hotspots of greening within the alpine zone" www.nature.com/articles/s41...
nature.com
Waning snowfields have transformed into hotspots of greening within the alpine zone - Nature Climate Change
The authors use multidecadal, high-resolution data to investigate the spatial variability of vegetation greening in European mountains. They show that changes in snow cover duration play a more signif...
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Gareth Phoenix @garethphoenix.bsky.social · 20/12/2024
I like this: Regional fire–greening positive feedback loops in Alaskan Arctic tundra Fire promotes arctic greening by facilitating establishment and growth of larger stature deciduous shrubs and other species. And the more severe fires do this more. www.nature.com/articles/s41...
nature.com
Regional fire–greening positive feedback loops in Alaskan Arctic tundra - Nature Plants
Arctic warming has led to widespread greening across the tundra. Utilizing remote-sensing and field data, this study identifies a positive fire–greening feedback loop operating across regional scales ...
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Gareth Phoenix @garethphoenix.bsky.social · 20/12/2024
Enhanced warming of European mountain permafrost in the early 21st century www.nature.com/articles/s41...
nature.com
Enhanced warming of European mountain permafrost in the early 21st century - Nature Communications
Permafrost in Europe’s mountains has warmed by more than 1 °C per decade in certain places, matching the levels in Arctic lowlands. The strongest warming occurred at cold bedrock at the highest elevat...
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Gareth Phoenix @garethphoenix.bsky.social · 20/12/2024
Interesting: Diminishing warming effects on plant phenology over time. This meta-analysis shows that the rate of change of plant phenology in response to warming declines over time. nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com
Diminishing warming effects on plant phenology over time
See also the Commentary on this article by Wang & Niu, 245: 437–439.
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Gareth Phoenix @garethphoenix.bsky.social · 14/12/2024
Quote: "One of the beautiful things about science is that it allows us to bumble along, getting it wrong time after time, and feel perfectly fine as long as we learn something each time". I quite like that 😊
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Robert G. Björk @robertgbjork.bsky.social · 09/12/2024
Misclassifying Oroarctic areas has led to significant confusion. Risto Virtanen's old paper deserve more attention for clarifying this. The European tundra falls into 3 distinct categories: Arctic, Oroarctic, and Alpine #ClimateScience #Oroarctic #ArcticTundra onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Where do the treeless tundra areas of northern highlands fit in the global biome system: toward an ecologically natural subdivision of the tundra biome
(1) The broad-scale patterns in the distribution and ecology of European tundra have been disputed for long. We attempt solutions by introducing ecologically meaningful and sound guidelines for bioge...
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Gareth Phoenix @garethphoenix.bsky.social · 03/12/2024
Icing-related injuries in polar bears (Ursus maritimus) at high latitudes. In (very) short: new climate regime brings with it new injuries not reported before. esajournals.onlinelibrary.wiley.com/doi/10.1002/...
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Gareth Phoenix @garethphoenix.bsky.social · 29/11/2024
Wow 😱: The western arctic caribou herd has largely abandoned its southern ranges as winter survival has worsened there. In: Evidence for an Adaptive, Large-Scale Range Shift in a Long-Distance Terrestrial Migrant. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Evidence for an Adaptive, Large‐Scale Range Shift in a Long‐Distance Terrestrial Migrant
The Western Arctic Herd, a large but declining caribou population, has shifted its main wintering range from lichen-rich coastal tundra in the southwesternmost portion of its range to mountainous are...
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Katie Field @katiefield4.bsky.social · 29/11/2024
Take a look at this excellent array of PhD projects in plant and soil science that are nowopen for applications! Please share with potential students 🤩
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Gareth Phoenix @garethphoenix.bsky.social · 29/11/2024
Interesting: Decline in Coupling Between Vegetation Photosynthesis and Greening in Northern Ecosystems During the Photosynthesis-Up Period (PUP). In (very) short: More photosynthesis in the PUP, but its links to greening (a major driver) is getting weaker. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Decline in Coupling Between Vegetation Photosynthesis and Greening in Northern Ecosystems During the Photosynthesis‐Up Period
We investigate the relationship between vegetation greening and photosynthesis in northern ecosystems from 2001 to 2022. Using satellite data, we found that while vegetation photosynthesis has genera...
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Kerryn Little @littlekerryn.bsky.social · 21/11/2024
PhD opportunity!! ➡️Heathland Flammability Responses to Environmental Change 🌿🔥 centa.ac.uk/studentship/... Work with a great team of researchers at University of Birmingham, University of Exeter, Forestry England & Met Office!
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Gareth Phoenix @garethphoenix.bsky.social · 22/11/2024
Interesting: Reindeer grazing reduces climate-driven vegetation changes and shifts trophic interactions in tundra. in @oikosjournal.bsky.social nsojournals.onlinelibrary.wiley.com/doi/10.1111/...
nsojournals.onlinelibrary.wiley.com
Reindeer grazing reduces climate‐driven vegetation changes and shifts trophic interactions in the Fennoscandian tundra
Herbivores drive shifts in plant species composition by interacting with vegetation through defoliation, trampling and nutrient addition: urine and faeces. As herbivore effects on vegetation accumula....
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Gareth Phoenix @garethphoenix.bsky.social · 21/11/2024
Nice paper: Arctic soil carbon trajectories shaped by plant–microbe interactions. In short - C losses by stimulated microbial decomposition with nutrient addition on tundra later offset by greater plant growth. www.nature.com/articles/s41...
nature.com
Arctic soil carbon trajectories shaped by plant–microbe interactions - Nature Climate Change
Arctic warming is thought to lead to large losses in soil carbon stocks. Here a 35-year-long fertilization experiment in Alaska shows that increased shrub productivity and changes in plant–microbial f...
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Gareth Phoenix @garethphoenix.bsky.social · 21/11/2024
"Unintended consequences of planting native and non-native trees in treeless ecosystems to mitigate climate change". In short- its not always a good idea. A good mini-review in @journalofecology.bsky.social besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com
Unintended consequences of planting native and non‐native trees in treeless ecosystems to mitigate climate change
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Dr Scott J. Davidson @wetlandresilienceresearchgroup.com · 27/02/2024
Winter may soon be over - first lot of photographs are coming in for 2024 from the Forsinard Flows site in northern Scotland as part of the Tracking the Colour of Peatlands Project
A collage of photographs of a peatland in northern Scotland that is part of the tracking the colour of peatlands project.
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Colin Osborne @colinplants.bsky.social · 26/02/2024
Come work with us! We're hiring two postdoc research fellows working broadly on nature-based climate solutions, including mitigation and natural sinks. If you'd like to chat about these, please get in touch. tinyurl.com/mt8stvmr @sheffieldpps.bsky.social @sheffielduni.bsky.social
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