Stefan Hupperts 🌲🍄🦠🏳️‍🌈
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stefhupperts.bsky.social
Stefan Hupperts 🌲🍄🦠🏳️‍🌈
@stefhupperts.bsky.social
260 followers 450 following 30 posts
Researcher at Swedish University of Agricultural Sciences in Umeå - Into forests, mosses, fungi, silviculture, and cross-country skiing
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stefhupperts.bsky.social
See below for MSc opportunity with me and @j-karst.bsky.social at the University of Alberta 👇🏻
j-karst.bsky.social Justine Karst 🇨🇦 @j-karst.bsky.social · 14d
@stefhupperts.bsky.social and I are recruiting an MSc student starting in summer/fall 2027 to quantify links between fire regime, canopy type, and ecosystem nitrogen balance in boreal forests. Full ad and relevant links below.
September 5, 2026 at 12:52 PM
stefhupperts.bsky.social
Back in Alberta’s expansive aspen stands after more than 10 years, with @j-karst.bsky.social! The rose understory is no joke 😅
Field crew in a pure boreal aspen stand
September 3, 2026 at 2:59 PM
stefhupperts.bsky.social
Only a couple weeks left to apply for this postdoc opportunity with me and @michael-gundale.bsky.social. If you're interested in biological nitrogen fixation and interactions among diazotrophs, fungi, and plants in boreal forests, then this could be for you!
stefhupperts.bsky.social Stefan Hupperts 🌲🍄🦠🏳️‍🌈 @stefhupperts.bsky.social · Jun 5
We're searching for a postdoc fellow to conduct research on biological nitrogen fixation in boreal forests! The postdoc will join a dynamic and fun research group in Umeå. Deadline Aug 27th. Reach out if you have any questions! www.slu.se/en/about-slu... @michael-gundale.bsky.social
A pine-dominated boreal forest in northern Sweden, with some field equipment patiently awaiting the researchers' return.
August 11, 2026 at 9:09 AM
stefhupperts.bsky.social
We did field work last week in the large area affected by the Västmanland wildfire that happened 12 years ago. Lots of deciduous regeneration and a thick Polytrichum moss layer!
Logs strewn across a wildfire-affected landscape with prolific aspen and birch regeneration. Pine, aspen, birch, and willow regeneration 12 years after a large wildfire in Sweden. Logs strewn across the site in the foreground. Landscape view 12 years after the large Västmanland wildfire. Standing deadwood, prolific deciduous regeneration, and a visitors boardwalk in view.
June 29, 2026 at 7:03 AM
stefhupperts.bsky.social
We're searching for a postdoc fellow to conduct research on biological nitrogen fixation in boreal forests! The postdoc will join a dynamic and fun research group in Umeå. Deadline Aug 27th. Reach out if you have any questions! www.slu.se/en/about-slu... @michael-gundale.bsky.social
A pine-dominated boreal forest in northern Sweden, with some field equipment patiently awaiting the researchers' return.
June 5, 2026 at 11:40 AM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
paulkardol.bsky.social
Excited to share our new paper on how tree community resource economics shape soil food web multifunctionality across European forests! 🌲🌍 We quantified how energy flows through microbes, fungi, detritivores, herbivores and predators beneath the forest floor. rdcu.be/fhmF2
Tree community resource economics control soil food web multifunctionality
Nature - Plant community properties affect ecosystem functioning via energy fluxes in food webs, with the leaf and root resource economics of dominant tree species controlling soil food web...
rdcu.be
May 7, 2026 at 2:28 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
nature.com
Nature research paper: Rising atmospheric CO2 reduces nitrogen availability in boreal forests

go.nature.com/3Op1Hca
Rising atmospheric CO2 reduces nitrogen availability in boreal forests - Nature
Nitrogen isotope tree-ring chronologies show that rising atmospheric CO2 has reduced nitrogen availability in boreal forests in Sweden, suggesting that elevated atmospheric CO2 is causing oligotrophication in boreal forests.
go.nature.com
February 19, 2026 at 9:23 AM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
michael-gundale.bsky.social
I am really excited to share our new paper, published today in Nature. We show that rising atmospheric CO2 is linked to decling nutrient availability in boreal forest, with implications for the future carbon sink. Kudos to lead author @kelleyrbassett.bsky.social.
www.nature.com/articles/s41...
Rising atmospheric CO2 reduces nitrogen availability in boreal forests - Nature
Nitrogen isotope tree-ring chronologies show that rising atmospheric CO2 has reduced nitrogen availability in boreal forests in Sweden, suggesting that elevated atmospheric CO2 is causing oligotrophic...
www.nature.com
February 18, 2026 at 4:15 PM
stefhupperts.bsky.social
Rising CO2 is reducing nitrogen availability in boreal forests. Check out our new paper in Nature, led by @kelleyrbassett.bsky.social! 👇
February 18, 2026 at 6:01 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
martin-nunez.bsky.social
Great postdoc opportunity in Sweden!! With the one and only David Wardle 🧪🌐
www.umu.se/en/work-with...
Post doctor (3 years) within mountain plant community and ecosystem processes across a globally distributed experiment
www.umu.se
January 24, 2026 at 4:25 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
michael-gundale.bsky.social
Please spread widely!!! The whole world needs to see this, especially communities in the USA.

iceout.org
People Over Papers - Report ICE Activity
Report and track ICE activity in your community. A community-driven platform to document immigration enforcement.
iceout.org
January 11, 2026 at 7:46 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
emhasselquist.bsky.social
I'm recruiting a #PhDstudent ! Deadline Feb 10th!

Explore how forest management shapes peatlands, riparian zones, streams and the #biodiversity that depends on them. www.slu.se/en/about-slu...
Boreal forest stream running through the forest. Temperature logger, leaf litter collection basket, and pitfall trap in the foreground.
December 11, 2025 at 8:08 AM
stefhupperts.bsky.social
👇👇
December 6, 2025 at 3:14 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
paulkardol.bsky.social
Explore how soil food webs withstand droughts and heatwaves, and what this means for tree regeneration in Swedish forests! 🌲🪱🌳🍄Become a PhD student in the WIFORCE Research School and work with us at SLU-Uppsala @mycopat.bsky.social #climate #forest #microbes #nematodes

www.slu.se/en/about-slu...
November 26, 2025 at 4:46 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
michael-gundale.bsky.social
New paper alert: Overestimated natural biological nitrogen fixation translates to an exaggerated CO2 fertilization effect in Earth System Models. Outstanding work by lead author Sian Kou-Giesbrecht
👇👇👇👇👇👇

www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
November 24, 2025 at 8:41 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
eliskakutakova.bsky.social
Check out our new paper about birch seedlings, traits, nutrient acquisition and warming in subarctics! 👀⚠️🌳 Just now coming out in Oikos :)
doi.org/10.1002/oik....
Many thanks to Maja Sundqvist and the whole amazing team 🤩
@stefhupperts.bsky.social
@michael-gundale.bsky.social
@aclassen.bsky.social
Whole‐seedling trait adjustments of mountain birch under contrasting environmental conditions
Warming temperatures can promote arctic tree seedling establishment and growth, but these effects depend on the environmental context and the seedlings' capacity to acquire limiting resources. Here, ....
doi.org
November 18, 2025 at 7:05 AM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
globalchangebio.bsky.social
A Meta‐Regression of 18 Wildfire Chronosequences Reveals Key Environmental Drivers and Knowledge Gaps in the Boreal Nitrogen Balance

🔗 buff.ly/IgjGnD0
@stefhupperts.bsky.social @michael-gundale.bsky.social
August 16, 2025 at 12:25 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
emhasselquist.bsky.social
I had a few people at #ESA2025 say that it was hard to find where to apply for jobs in Sweden. If you want to check jobs at university, here's the website: www.slu.se/en/about-slu...

#forests #restorationecology #forestry #silviculture
Jobs and vacancies | slu.se
Would you like to join us in creating the conditions for a sustainable, thriving and better world? Welcome with your application!
www.slu.se
August 14, 2025 at 3:14 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
emhasselquist.bsky.social
Not from the EU and looking to come to Sweden to do reseach? There is a grant for that! Applications taken through December 2025. www.vr.se/english/appl...
August 14, 2025 at 3:28 PM
stefhupperts.bsky.social
Currently doing field work in interior Alaska, where black spruce reigns supreme 👑
August 10, 2025 at 9:57 PM
stefhupperts.bsky.social
I'm so excited to share our new paper in Global Change Biology: A network of 18 wildfire chronosequences reveals key environmental drivers and knowledge gaps in the boreal nitrogen balance, with @michael-gundale.bsky.social and others. doi.org/10.1111/gcb....
August 4, 2025 at 2:42 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
anthomycota.bsky.social
Are you in the USA, interesting in greater stability, and looking for a postdoc with excellent funding? Write me to discuss this opportunity to come to Austria under the APART-USA program from the Austrian Academy of Sciences and Uni Wien.

stipendien.oeaw.ac.at/en/fellowshi...
APART-USA
Stipendien & Preise der Österreichischen Akademie der Wissenschaften
stipendien.oeaw.ac.at
July 10, 2025 at 8:02 AM
stefhupperts.bsky.social
In beautiful Vienna for #EGU25! Looking forward to a fun week. Check out my poster on Wednesday morning for some boreal nitrogen excitement 🌳🌲
People relaxing in a sunny green park with shade from large deciduous trees.
April 27, 2025 at 3:04 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
margauxboeraeve.bsky.social
New paper out in @jappliedecology.bsky.social ! We studied carry-over effects of nitrogen fertilization in Swedish production forests. 🌲🧪🌍
🧵(1/7)
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Graphical abstract of a scientific paper showing drawings of a helicopter fertilizing a forest, a harvester cutting down a tree and a tree stump next to a pine sapling with ectomycorrhizal fungi on its roots. In a 2 panel figure data on the organic layer carbon stock in fertilized and unfertilized forests is shown. In the left panel right after clearcutting, where there is a larger carbon stock in the previously fertilized clearcuts. In the right panel 4-13 years after clearcutting, when there is no longer a significant difference in soil organic layer carbon stocks.
April 8, 2025 at 12:29 PM
Reposted by Stefan Hupperts 🌲🍄🦠🏳️‍🌈
michael-gundale.bsky.social
New paper alert. We compared foliar fungal communities in native and introduced populations for a pine species (Spoiler alert: fewer pathogens in exotic populations). Shout out to an excellent international network of collaborators. 👇👇👇

www.nature.com/articles/s41...
Distinct foliar fungal communities in Pinus contorta across native and introduced ranges: evidence for context dependency of pathogen release - Scientific Reports
Scientific Reports - Distinct foliar fungal communities in Pinus contorta across native and introduced ranges: evidence for context dependency of pathogen release
www.nature.com
March 1, 2025 at 10:26 AM