Robert G. Björk

Rikard Hjorth Warlenius: Därför tvingas svenska forskare ägna sig åt bortkastat arbete Systemet med forskningsanslag leder till att tusentals timmar ägnas åt bortkastat arbete, skriver Rikard Hjorth Warlenius.

Debatt. Systemet med forskningsanslag leder till att tusentals timmar ägnas åt bortkastat arbete. Det är dags att pytsa ut mer pengar direkt till universiteten. www.dn.se/kultur/rikar...

Society publishers are learned societies publishing research for their scholarly communities. At the NSO, publishing is mission-driven: we reinvest in our members, support their research through our journals and uphold research integrity. 🌿🔬 #SocietyPublishing #OpenScience

Impacts of large herbivores on mycorrhizal fungal communities across the Arctic Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian her...

🎉 Our paper is now officially included in the journal issue!
🔗 nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
Even better — it’s selected as Editor’s Choice ✨
Well done and well deserved, @colebrachmann.bsky.social👏
#Arctic #Research #EditorsChoice #GlobalChange #Biodiversity #Fungi #Mycorrhiza

Impacts of large herbivores on mycorrhizal fungal communities across the Arctic Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian her...

🎉 Our paper is now officially included in the journal issue!
🔗 nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
Even better — it’s selected as Editor’s Choice ✨
Well done and well deserved, @colebrachmann.bsky.social👏
#Arctic #Research #EditorsChoice #GlobalChange #Biodiversity #Fungi #Mycorrhiza

Global Temperature Report for 2025 - Berkeley Earth 2025 was the 3rd warmest year on Earth since direct observations began, and recent warming appears to be moving faster than expected.

🌍 Berkeley Earth’s 2025 Global Temperature Report is out.
2025 was the 3rd warmest year on record. Annual global temperature reached 1.44 ± 0.09°C above the pre-industrial baseline; 770 million people experienced locally record-warm annual conditions.

Full report: berkeleyearth.org/global-tempe...

The global warming trend continued in 2025. Each of the past 11 years (2015–2025) has been among the 11 warmest on record. Explore more data from #CopernicusClimate in the Global Climate Highlights 2025. #GCH2025

🔗 climate.copernicus.eu/global-clima...

@ecmwf.int

Fakta i frågan: Är de svenska fjällen på väg att försvinna? Klimatförändringar, minskande snötäcken och pressade arter förändrar den svenska fjällvärlden.

Great article on the threats facing the Scandinavian tundra 🌍❄️ (in Swedish). Proud to have contributed with background insights! 🙌 #ClimateChange #Tundra
www.dn.se/sverige/fakt...

A new era of bioclimatic extremes in the terrestrial Arctic Long-term climate data suggest that the Arctic is entering a new era of bioclimatic extremes threatening cold ecosystems.

Climate change has already reshaped the bioclimatic space of extreme events in the Arctic 🌐❄️ Arctic biodiversity has entered a new era of bioclimatic extremes w/ more droughts, greater winter-warming 📈 & more rain-on-snow events 💧❄️

shorturl.at/pQsVP

Just published in Science Advances ⬇️

Fascinating study on shifting bioclimatic conditions in the Arctic 🌍❄️. From a Swedish perspective 🇸🇪, it’s striking how much of the Scandes have become drier 🌵📉— and extreme events are becoming increasingly common ⚠️🔥. #ClimateChange #Arctic
bsky.app/profile/jonl...

Love seeing @plosclimate.org highlighting our Browning review in their #PLOSClimateCountdown.

Impacts of large herbivores on mycorrhizal fungal communities across the Arctic Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian her...

🚨New paper in @ecography.bsky.social! First Pan-Arctic study on how large herbivore exclusion shapes mycorrhizal fungi, brilliantly led by @colebrachmann.bsky.social. Key insight: AM fungi—often overlooked in Arctic research—respond most strongly to herbivory while EcM and ErM vary locally. Thread 👇

This opportunity looks amazing—don’t miss out, apply today!

Doctoral Programme grant within Polar Research The Swedish Research Council has decided on the applications to be awarded Doctoral programme grant within polar research. Our total grant amount for 2025-2028 is nearly 40 million SEK.

Thrilled to announce that our Polar Research School has secured funding! 🌍❄️ This means 15 new PhD studentships will soon be connected to the program. Stay tuned for updates!
🔗https://www.vr.se/english/applying-for-funding/decisions/2025-11-05-doctoral-programme-grant-within-polar-research.html

Impacts of large herbivores on mycorrhizal fungal communities across the Arctic Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian her...

7 (7)/ This is the largest assessment of herbivory impacts on Arctic soil fungi to date.
Full paper: doi.org/10.1002/ecog...

6 (7)/ As the Arctic warms and vegetation shifts, AM fungi may become more prevalent—potentially changing carbon storage dynamics.

Ignoring AM fungi in Arctic studies risks missing a big piece of the puzzle.

5 (7)/ Soil properties (pH, SOM) and climate (growing season temperature) were stronger predictors of fungal composition than vegetation type.

Bottom-up factors > top-down herbivory for most fungi.

4 (7)/ Why does this matter?
AM fungi are near their ecological limits in the Arctic. Changes in herbivory or warming could amplify their response, altering plant–fungal interactions and nutrient cycling.

3 (7)/ What did we find?
- Arbuscular mycorrhizal (AM) fungi were most sensitive to herbivore exclusion.
- Ectomycorrhizal (EcM) and ericoid (ErM) fungi showed no consistent response.

2 (7)/ We analyzed soils from 15 herbivore exclosure experiments across the Arctic, sequencing fungal DNA (ITS and SSU) to see how communities shift when large mammals are excluded.

1 (7)/ Why care about Arctic fungi🍄?
They drive carbon and nutrient cycling in some of the planet’s most carbon-rich soils. Yet, their interactions with large herbivores (reindeer, caribou, etc.) remain poorly understood.

Impacts of large herbivores on mycorrhizal fungal communities across the Arctic Mycorrhizal fungi play an integral role in nutrient and carbon cycling in soils, which may be especially important in the Arctic, one of the world's most soil carbon-rich regions. Large mammalian her...

🚨New paper in @ecography.bsky.social! First Pan-Arctic study on how large herbivore exclusion shapes mycorrhizal fungi, brilliantly led by @colebrachmann.bsky.social. Key insight: AM fungi—often overlooked in Arctic research—respond most strongly to herbivory while EcM and ErM vary locally. Thread 👇

Yes, I think she will develope a new PhD course.

Doctoral Programme grant within Polar Research The Swedish Research Council has decided on the applications to be awarded Doctoral programme grant within polar research. Our total grant amount for 2025-2028 is nearly 40 million SEK.

Thrilled to announce that our Polar Research School has secured funding! 🌍❄️ This means 15 new PhD studentships will soon be connected to the program. Stay tuned for updates!
🔗https://www.vr.se/english/applying-for-funding/decisions/2025-11-05-doctoral-programme-grant-within-polar-research.html

Huge congratulations! 🎉 So well-deserved👏!

Abisko Sweden looking over Torneträsk

📢 Do you want to do a #PhD using #hyperspectral satellite data to observe climate influences on tundra vegetation in Sweden? With me and @robertgbjork.bsky.social at U of Gothenburg. Apply by 19 Jan 2026. bit.ly/44duvJI

STOTEN is now dead. It has been completely removed from Web of Science mjl.clarivate.com/search-results

The role of mycorrhizal type and plant dominance in regulating nitrogen cycling in Oroarctic soils Abstract. Mycorrhizal fungi enhance plant access to nitrogen (N) in nutrient-poor environments like the Arctic tundra by depolymerizing N-rich organic compounds into forms available to plants and micr...

🌱❄️ New paper in #Biogeosciences: Mycorrhizal fungi & plant dominance strongly shape N cycling in Oroarctic soils—challenging assumptions about slow N turnover in shrub-dominated tundra.
👉https://bg.copernicus.org/articles/22/6841/2025/bg-22-6841-2025.html
#Arctic #Mycorrhiza #Nitrogen #ClimateChange

⏳ Only 10 days left to apply for the professorship! Don’t miss this opportunity, apply now!
#Academia #Professorship #DeadlineAlert

⏳ Only 10 days left to apply for the professorship! Don’t miss this opportunity, apply now!
#Academia #Professorship #DeadlineAlert

4/ ✅Take-home: EcM/ErM fungi accelerate N cycling more than expected. Plant dominance matters. Predicting tundra responses needs mycorrhizal type + community composition.
#ClimateImpact #ArcticResearch