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Justine Karst 🇨🇦

@j-karst.bsky.social
2.2K followers 384 following 438 posts

Professor, U of Alberta. I study the mycorrhizal ecology of forests. Rigor and awe aren't enemies.

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Justine Karst 🇨🇦 @j-karst.bsky.social · 13/09/2026
These results are also consistent with ours. Tree mortality alone (no disturbance to forest soils) did not results in losses to soil C. link.springer.com/article/10.1...
link.springer.com
Over a Decade Later, Soil Carbon Stores in Boreal Forests are Resistant to Extensive Tree Mortality - Ecosystems
Mountain pine beetles have caused extensive tree mortality in Canadian boreal forests. In some areas, ectomycorrhizal (EM) pine stands have been replaced by arbuscular mycorrhizal (AM) vegetation. Giv...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 13/09/2026
A 20 year field experiment shows that in the absence of soil disturbance, tree removal did not cause sig forest floor C losses and mineral soil C increased. I don't know any other expt that so clearly decouples tree removal from soil disturbance. 👍 agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
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Justine Karst 🇨🇦 @j-karst.bsky.social · 05/09/2026
Sharing this new initiative to study soil C, its persistence, and possible health indicators across forests coast to coast in Canada. Led by C Norris and S Quideau. Sampling + surveys complete. My lab is fortunate to be part of this research. cdnsciencepub.com/doi/10.1139/...
cdnsciencepub.com
Canada’s forest soils: the establishment of a nationwide network of long-term sites to examine soil carbon persistence and soil indicators
Recent discussions on soil health, soil degradation, and soil security have increased awareness of Canada’s forests and their soils as national assets. Foremost is their ability to support timber prod...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 04/09/2026
Before applying, check your elgibility: www.ualberta.ca/en/agricultu...
ualberta.ca
Renewable Resources Admission Process
Renewable Resources Admission Process
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Justine Karst 🇨🇦 @j-karst.bsky.social · 04/09/2026
Information on our departmental MSc program: www.ualberta.ca/en/agricultu...
ualberta.ca
Master of Science (MSc)
Graduate students can select from 18 thesis-based or course based degrees in five different topic areas Conservation Biology, Forest Ecology and Management, Agriculture and the Environment, Reclamatio...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 04/09/2026
We will build on Stefan's recent research on the topic: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
A Meta‐Regression of 18 Wildfire Chronosequences Reveals Key Environmental Drivers and Knowledge Gaps in the Boreal Nitrogen Balance
We estimated boreal forest nitrogen accumulation rates in the first 200 years after wildfire and found that rates were largely driven by wildfire severity and dominant canopy type (i.e., evergreen or...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 04/09/2026
@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.
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Justine Karst 🇨🇦 @j-karst.bsky.social · 22/08/2026
The downside of all the rain is many flooded basements. Good for fungi, bad for basements!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 21/08/2026
Record breaking rainfall this summer is producing some big mushrooms! (I'm currently doing fieldwork around Peace River, AB)
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Justine Karst 🇨🇦 @j-karst.bsky.social · 15/07/2026
Also free stickers!
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Pedro Madeira Antunes @1pantunes.bsky.social · 15/07/2026
It has been a great experience volunteering on the IMS board. We have new student awards, a new logo, a refreshed website, and we’re set for the next ICOMs. We also have t-shirts! All to ensure that mycorrhizal research continues to thrive. Come see our booth at #icom2026 !
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 12/07/2026
🎉 @ICOM2026 is almost here! We're excited to see the mycorrhizal community come together for a fantastic week of science and collaboration. Share your talks, posters, field trips & conference moments, and tag @mycorrhizaims.bsky.social and @icom2026.bsky.social to share your highlights! 🍄
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 06/07/2026
🏆 We're looking for judges for Student and ECR presentations at #ICOM2026! Help us recognize outstanding research and support the next generation of mycorrhizal scientists. 🍄 There are many awards this year! Sign up here: acesse.one/wjm5itx @icom2026.bsky.social
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 10/07/2026
🏆 We're looking for judges for Student and ECR presentations at #ICOM2026! Help us recognize outstanding research and support the next generation of mycorrhizal scientists. There are many awards this year! Sign up here: url.ucm.cl/zS8OcC Help us spread the word! @icom2026.bsky.social
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Justine Karst 🇨🇦 @j-karst.bsky.social · 07/07/2026
Today's the day that I make my way to #ICOM2026! Bit of a journey from Edmonton. I've got 'Jurassic Park' and 'Thinking, Fast and Slow' cued up as audiobooks.
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Justine Karst 🇨🇦 @j-karst.bsky.social · 06/07/2026
If you are joining us at #ICOM2026, please consider helping us judge student and postdoc presentations. See below. Thank you!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 03/07/2026
Your words are now in my bio. They've landed!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 03/07/2026
🙏🙂‍↕️
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Justine Karst 🇨🇦 @j-karst.bsky.social · 02/07/2026
Many, many thanks for this. And I love that phrase "Rigour and awe aren't enemies"! Are these your words? Could I please use them?
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Justine Karst 🇨🇦 @j-karst.bsky.social · 02/07/2026
I agree!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 01/07/2026
Oh wow! This is our paper! The thread says it all. Thanks @newphyt.bsky.social for the spotlight.
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Justine Karst 🇨🇦 @j-karst.bsky.social · 26/06/2026
My dear friend John Acorn received an honorary degree last week. The first time I identified a bird, he made me sing a song with him. I don't know anyone who connects people to nature like John does. Congratulations! www.ualberta.ca/en/the-quad/...
ualberta.ca
From frogs to futures: John Acorn’s convocation message to science graduates
Reflecting on his experiences as a scientist, educator and beloved television host, John Acorn shared how meaningful communication can spark curiosity in ways we may never predict. His parting message...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 24/06/2026
Maybe one way to evaluate this is on how we would respond to a 'climate skeptic' saying 'scientists shld stop trying to be neutral and instead embrace their values'.
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Justine Karst 🇨🇦 @j-karst.bsky.social · 24/06/2026
'chemical repellents like DEET block octenol receptors, thereby inhibiting your attractiveness to mosquitoes' very interesting! -> does eating mushrooms make you attractive to mosquitoes?
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Justine Karst 🇨🇦 @j-karst.bsky.social · 23/06/2026
Oh wow! What a place. Thanks for that reminder
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Justine Karst 🇨🇦 @j-karst.bsky.social · 22/06/2026
Gorgeous landscapes!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 22/06/2026
#ICOM2026 marks my last few days as president of IMS. A time to reconnect and welcome new members to our wonderful research community. Please find me at the conference if you want to know more about the IMS. I'll be at the Welcome Mixer!
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ICOM2026 @icom2026.bsky.social · 22/06/2026
🎉Join us for the #ICOM2026 welcome mixer! Sunday 12th July: 6pm 🌴Waterfront location: Hemingway’s Brewery, Cairns 🎟️Tickets just $20 each - 🍕cocktail style food included 🍺Delicious craft beers and other drinks purchased at own expense Purchase ➡️ icom2026.org/welcome/ 📆On sale until 30th June
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Justine Karst 🇨🇦 @j-karst.bsky.social · 22/06/2026
A decent contingent from my dept going! Enjoy the conference
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Justine Karst 🇨🇦 @j-karst.bsky.social · 21/06/2026
Also some problems with the claim that trees 'communicate with each other through their root systems.'
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Carbon Brief @carbonbrief.org · 20/06/2026
Recommended read: John Drake, a professor of ecology at the University of Georgia, wrote an essay for Aeon – also re-published as a Guardian “long read” – questioning the framing of ecosystems and climate systems “breaking down”.
buff.ly
Why we need to think again about ecosystem failure | Aeon Essays
We are told the natural world is ‘breaking down’. But forests don’t work like airplanes or human hearts
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Justine Karst 🇨🇦 @j-karst.bsky.social · 14/06/2026
You might like 'Mushrooms in Their Natural Habitats'. It comes with stereo vision pics but I think it was published in the 1950s. More of a collectors item at this point but I thought it was pretty cool!
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ICOM2026 @icom2026.bsky.social · 12/06/2026
Only 1️⃣ month to go until #ICOM2026 begins! 🌱🍄 The countdown continues — we can’t wait to welcome the international #mycorrhiza community to Cairns in Australia for ICOM2026!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 11/06/2026
This research is far from my expertise, so please forgive the naive question but does this mean that Lynn Margulis was wrong?
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Justine Karst 🇨🇦 @j-karst.bsky.social · 10/06/2026
Two excellent candidates to consider for IMS Communications Director. Thanks to both for running!
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Justine Karst 🇨🇦 @j-karst.bsky.social · 10/06/2026
A reminder that Vice President leads to President of the IMS. A stellar group of candidates to consider for this position. Thanks to everyone for running!
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 10/06/2026
📢 ATTENTION IMS Members! Meet the candidates for Communications Director of the IMS. Learn about their ideas for strengthening communication, outreach, and engagement across our global mycorrhizal community. 🗳️ Stay informed and be ready to vote! 👉http://mycorrhiza.org @icom2026.bsky.social
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 10/06/2026
📢 ATTENTION IMS Members! Meet the candidates for Vice President of the International Mycorrhiza Society. Learn about their experience, vision, and goals for supporting our global mycorrhizal community. 🗳️ Stay informed and be ready to vote! 👉http://mycorrhiza.org @icom2026.bsky.social
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ICOM2026 @icom2026.bsky.social · 08/06/2026
🎉Join us for the #ICOM2026 welcome mixer! Sunday 12th July: 6pm 🌴Waterfront location: Hemingway’s Brewery, Cairns 🎟️Tickets just $20 each - 🍕cocktail style food included 🍺Delicious craft beers and other drinks purchased at own expense Purchase ➡️ icom2026.org/welcome/ 📆On sale until 30th June
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Camille Delavaux @camilledelavaux.bsky.social · 05/06/2026
Excited to announce a 4-year PhD position at @niooknaw.bsky.social investigating the island biogeography of plant-associated fungi in the giant daisy radiation on the Galapagos. Please apply, share, and reach out with any questions! vacatures.knaw.nl/job/Wagening...
vacatures.knaw.nl
PhD: Biogeography of plant-associated fungi on the Galapagos islands - NIOO-KNAW - Wageningen
PhD: Biogeography of plant-associated fungi on the Galapagos islands - NIOO-KNAW - Wageningen
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Stefan Hupperts 🌲🍄🦠🏳️‍🌈 @stefhupperts.bsky.social · 05/06/2026
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.
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Justine Karst 🇨🇦 @j-karst.bsky.social · 30/05/2026
I think that study and others similar to it have been reexamined. nph.onlinelibrary.wiley.com/doi/full/10....
nph.onlinelibrary.wiley.com
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ICOM2026 @icom2026.bsky.social · 27/05/2026
🚨Late abstract submissions now being taken🚨 For posters: unlimited availability For oral presentations: limited availability; submit ASAP The one-talk/one-poster rule still is in effect for presenting authors Abstract portal closes: June 12 at midnight AEST Submit 👉 icom2026.org/abstract/
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Justine Karst 🇨🇦 @j-karst.bsky.social · 27/05/2026
Thank you for these posts. I needed to hear this. And I'm encouraged! Thank you for doing a great job communicating science and all its wins and foibles. 🙏
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Justine Karst 🇨🇦 @j-karst.bsky.social · 26/05/2026
Posting on behalf of my colleagues (I am part of this project, too). Postdoc position aimed at generating policy-relevant knowledge to effectively integrate forest-soil carbon in Canadian policies. Details and contact information in job ad below. Please share!
Ad for postdoc
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Justine Karst 🇨🇦 @j-karst.bsky.social · 26/05/2026
I can try--can you pls explain a bit more what you mean by underserving?
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Justine Karst 🇨🇦 @j-karst.bsky.social · 25/05/2026
Ah yes! I read that critique (and the rebuttal). Similar problem --at what point does engagement help/harm? I'm not sure. Mostly I'm just tired of the wood wide web 😕
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Justine Karst 🇨🇦 @j-karst.bsky.social · 25/05/2026
Yes, that has been my experience. Our critique of the 'wood-wide web', is now fodder for the proponent's hero story. I honestly don't know what to do about it -- do we ignore? do we continue to challenge? Our critique: rdcu.be/fkEMC The proponent's response: www.theguardian.com/environment/...
theguardian.com
‘My ideas are a little revolutionary’: ecologist Suzanne Simard on intelligent forests, the climate and her critics
Her research popularised the idea of the wood wide web, but the scientific backlash was brutal. As the author of The Mother Tree returns to the forest in a new book, she discusses her battle to reimag...
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Justine Karst 🇨🇦 @j-karst.bsky.social · 25/05/2026
'We have a responsibility to criticize public claims that we believe to be incorrect...' I don't disagree. But criticism can fuel hero stories of the people engaged in questionable research practices. Anyone doing this kind of work should prepare for that outcome.
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