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Klara Mrak

@mrakklara.bsky.social
448 followers 187 following 19 posts

I like plants and I like jokes. Researching soil and nutrients in forests, dead or living, with PoToMa: www.chemgeo.uni-jena.de/en/44572/po…

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Reposted by Klara Mrak
Brian J. Enquist @bjenquist.bsky.social · 23/09/2026
A good reminder "Data science" isn't Science..."Without models, mathematical or conceptual, data are just noise...science advances only if it can provide explanations...there is an area where petabytes of information can be used...But don't call it science" link.springer.com/article/10.1... 🧪🌐
link.springer.com
The end of theory in science? - EMBO Reports
EMBO Reports -
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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 In some areas, ectomycorrhizal (EM) pine stands have been replaced by arbuscular mycorrhizal (AM) vegetation.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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Soilcast - Der tiefgründige Podcast! @soilcast.bsky.social · 10/09/2026
🌱 Warum riecht Boden eigentlich nach Boden? 👃 In dieser Folge geht es um Geosmin, MIB und Petrichor 🔬 und um die Chemie hinter Bodengerüchen. Webplayer: soilcast.de/soiltalk/sc2... #Bodenkunde #Bodenchemie #Geosmin #Petrichor #Mikrobiologie
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 02/09/2026
Join us for our final #Symposium! Featuring amazing keynote speakers, and lively discussions on forest dynamics, tree species mixing, and the introduction of non-native timber species Don't miss out! 📍 Alte Mensa, Wilhelmsplatz 3, Göttingen 🗓 6–8 October, 2026 👉 www.uni-goettingen.de/en/final+sym...
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Michela Audisio @michela-audisio.bsky.social · 25/08/2026
The deadline for abstract submission has been extended to *September 8th* 🍂 Open to students and early career researchers working in mixed forests 🌲🌳
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 25/08/2026
#forestecol 🍁 #Poster wanted! Don't miss the chance to present your work at our interdisciplinary forest research #Symposium on mixed forests et al. 🌲🌳 *Deadline for submission: Sept 8 *Participation free of charge 📍Göttingen University 🗓 6-7 Oct 2026 www.uni-goettingen.de/en/final+sym...
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 18/08/2026
#Poster wanted! Don't miss the chance to present your work at our interdisciplinary forest research #Symposium on mixed forests et al. 🌲🌳 📍Göttingen University 🗓 6-7 October, 2026 More infos and registration: www.uni-goettingen.de/en/final+sym...
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Soilcast - Der tiefgründige Podcast! @soilcast.bsky.social · 31/07/2026
Hättet ihr gedacht, dass #Nitrat auch unter Waldgebieten zum Thema werden kann? Carolin Winter hat die Nitratbelastung von Aquiferen unter Waldgebieten im Kontext des Klimawandels erforscht und erklärt uns im neuesten Interview diese spannenden Zusammenhänge! Hört gerne rein! #Soilcast
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Klara Mrak @mrakklara.bsky.social · 28/07/2026
"...The underlying dominance structures [in tree communities] develop surprisingly early and they persist." (I am trying hard not to secretly anthropomorphise 💀) besjournals.onlinelibrary.wiley.com/doi/10.1111/... @journalofecology.bsky.social #forestecol 🌳
besjournals.onlinelibrary.wiley.com
Get out of the starting block quickly—Small initial differences in seed and seedling size affect tree survival and growth over 25 years
Our study illustrates how intense intraspecific competition processes operate at very early developmental stages among even-aged tree cohorts, following the general pattern of self-thinning. We showe...
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Cate Macinnis-Ng @loraxcate.bsky.social · 15/07/2026
"Gender parity will only be achieved at the highest ranks if hiring rates are jointly equalized across gender, academic rank and discipline." royalsocietypublishing.org/rsos/article...
royalsocietypublishing.org
The compounding costs of being female in academia: individual-based modelling of career progression and interventions
Abstract. We develop a novel individual-based population-dynamics model of academic career progression, using 15 years of data from over 1000 academics fro
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Klara Mrak @mrakklara.bsky.social · 14/07/2026
Who cares about nitrate concentrations in water! Babies. More here: www.sciencedirect.com/science/arti... So to not upset babies, lets not plant pure Douglas fir forests everywhere. More here: www.sciencedirect.com/science/arti... @enricounigoe.bsky.social #forestecol
sciencedirect.com
Nitrate in drinking water and preterm birth: a national retrospective cohort study in New Zealand
Preterm birth (PTB) is a leading cause of mortality in children aged <5 years, and survivors experience increased chronic morbidity. Emerging evidence…
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Klara Mrak @mrakklara.bsky.social · 07/07/2026
Who wants to count bugs in dead spruce forests for their thesis? With @bmwildermuth.bsky.social at @idiv-research.bsky.social in collab. with PoToMa Project; www.idiv.de/education/ba... www.chemgeo.uni-jena.de/en/44572/pot...
idiv.de
Bachelor's and Master's Theses | iDiv
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Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · 29/06/2026
New publication led by Postdoc Thomas Muratore on a long-term soil warming and N addition experiment @harvardforest.bsky.social together with an amazing group of collaborators and trainees (including @ncharisoil.bsky.social, Grady Welsh, Serita Frey, Benton Taylor and TWO REU students)
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Benjamin Wildermuth @bmwildermuth.bsky.social · 26/06/2026
Clearcuts are a tough environment for fieldwork at almost 40°C 🌞 But let's see what the beetles and microclimate loggers have to say about that 🪲🪵 #PoToMa @mrakklara.bsky.social @fboetzl.bsky.social @eisenhauerlab.bsky.social
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 25/06/2026
New Enrico paper out about tree ecophysiology! By synthesizing sap flow and dendrometer measurements, we show that isohydric Douglas fir 🌲 experiences earlier drought-induced declines in stem water status than anisohydric beech 🌳 www.sciencedirect.com/science/arti...
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Marcbuzzard @marcbuzzard.bsky.social · 22/05/2026
Wood Warbler are beautiful summer migrants and seem to be holding their own in the Conwy Valley. @penrhynbirder.bsky.social has been surveying the population over the past few years and finding some fascinating trends, while @birdsandbikes.bsky.social ringing dedication is impressive #birdingwales
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Klara Mrak @mrakklara.bsky.social · 19/05/2026
"Why do you have to constantly poke at something why cant you just let the forest do what it wants" #forestecol 🌳🌲 PoToMa deadwood research: www.chemgeo.uni-jena.de/en/44572/pot...
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Benjamin Wildermuth @bmwildermuth.bsky.social · 12/05/2026
www.chemgeo.uni-jena.de/en/68189/col... Happy to be back in the forest 🌲 (mostly dead forest, but that's applied forest ecology these days) Great crew from the PhD days, thanks @mrakklara.bsky.social for initiating & coordinating Let's see whether spiders care about deadwood management! 🕷️
chemgeo.uni-jena.de
Arthropod ecology with a focus on spiders
Collaboration with University of Hamburg and iDiv
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Klara Mrak @mrakklara.bsky.social · 27/03/2026
Some dirt digging and a bug (a Carabus) 🌳🌲
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Kathleen Bachynski @bachynski.bsky.social · 27/03/2026
How incredible: “The full delivery took about 30 minutes. For hours afterward, pairs of whales held the baby above the water until it was able to swim… What struck the researchers was how many mother, sister and daughter whales united to support the new calf, even ones that weren’t related.”
apnews.com
Scientists captured female sperm whales on video working together during a birth to protect the calf
Scientists have captured rare footage of a sperm whale giving birth, offering a window into the large mammals' behavior.
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Klara Mrak @mrakklara.bsky.social · 23/03/2026
🌳About the felling of city trees: www.lss.ls.tum.de/toek/forschu... #forestecol
lss.ls.tum.de
Stadtbäume
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The Jena Experiment @jena-experiment.bsky.social · 17/03/2026
Belated paper update from February: A new study by @sarawinterfeldt.bsky.social et al shows that higher plant diversity boosts microbial drought resistance and promotes soil carbon storage 🌱🦠 doi.org/10.1111/1365... @rousklab.bsky.social @journalofecology.bsky.social
doi.org
Plant diversity increases microbial resistance to drought and soil carbon accumulation
We investigated how plant diversity influenced soil microbial processes during moist conditions and an experimental drought. Higher plant diversity increased below-ground plant input. This increased ...
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 03/03/2026
New nutrients&roots paper out! 🌳🌲🧪 Douglas fir and beech saplings partition ammonium vs. nitrate under competition, enabling complementary N use and their coexistence in mixed stands. @mrakklara.bsky.social @bmwildermuth.bsky.social link.springer.com/article/10.1... #forestecol
link.springer.com
Mineral nitrogen form preference, partitioning and root morphological traits of Douglas fir and European beech under intra—and interspecific competition in-situ - European Journal of Forest Research
Climate change challenges forestry in temperate regions, with drought and insect infestations affecting major tree species. Introducing drought-tolerant non-native species into managed forests is a wi...
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c0nc0rdance @c0nc0rdance.bsky.social · 14/02/2026
Franzi Schimmer captured this Grizzly bear in Brooks Falls, Alaska just floating along, tippy-tapping down the river, browsing the salmon. Prior to hibernation, up to 40% of a bear's body mass is fat, which is less dense than water (~0.9 g/cm^2), so the murder-monster is also a floaty-boaty.
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Christina Hackmann @christina-hn.bsky.social · 10/02/2026
The highlights of our new study summarized as a press release! ⚠️ This is what can happen if two PhD students decide they have not yet had enough and want to do collaborative research. Worth it! @mrakklara.bsky.social @sharathpaligi.bsky.social @wileyecology.bsky.social
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Klara Mrak @mrakklara.bsky.social · 22/01/2026
Very pretty ectomycorrhiza on a beech root! During these winter months, I longingly gaze at photos of tree roots 🎶 Shot by miki @michela-audisio.bsky.social #mycorrhiza #forestecol
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Klara Mrak @mrakklara.bsky.social · 20/01/2026
Christoph Leuschner, who knows a bit about trees, is giving a talk in Göttingen today: "Wie kommen unsere Bäume mit dem Klimawandel zurecht?"🌳 Should be good! #forestecol @Aula am Wilhelmsplatz, Gö, at 18:15, free
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Klara Mrak @mrakklara.bsky.social · 16/01/2026
The project ResEtFi is looking for a project coordinator, 100% 🍉 Topic: developing multifunctional forests on disturbed spruce stands. Find ThüringenForst - AöR on Interamt.de
interamt.de
INTERAMT - Das Karriereportal des öffentlichen Dienstes
INTERAMT ist das Karriereportal für den öffentlichen Dienst.
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 18/12/2025
New!🌲💧 Water moves faster than nitrate from soil to canopy in mature trees, highlighting root, soil, and species traits. More on subsoil uptake by Douglas fir and beech here: onlinelibrary.wiley.com/doi/10.1111/... @mrakklara.bsky.social @christina-hn.bsky.social @wileyonlinelibrary.bsky.social
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Klara Mrak @mrakklara.bsky.social · 10/12/2025
landscape architecture for life!
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Klara Mrak @mrakklara.bsky.social · 05/12/2025
🥹
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Andrew Hacket-Pain @andrewhacket-pain.bsky.social · 05/12/2025
University of Birmingham, UK, are advertising a permanant position (Assistant or Associate Professor) in *Forests under Global Change*. A wide net has been cast - ecology, physiology, modelling, remote sensing, functioning, biodiversity, management... 🌲🌱🌳🌳🦌🌳🛰️🐿️🌲🔬🌳 www.jobs.ac.uk/job/DPS459/a...
Seedling growing in the forest
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Klara Mrak @mrakklara.bsky.social · 04/12/2025
Hi, for international researchers (broad topic of landscape resilience), you can get funded for organising a workshop at Uni Göttingen. Here is the link (see categroy C): #forestecol www.uni-goettingen.de/de/innovatio...
uni-goettingen.de
Innovation Pool - Georg-August-Universität Göttingen
Webseiten der Georg-August-Universität Göttingen
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Klara Mrak @mrakklara.bsky.social · 03/12/2025
News from the tree nutrition front: despite all the nutrient input/output drama of the past decades, trees in Northern Europe seem to be doing fine, except they might still be missing some nitrogen. onlinelibrary.wiley.com/doi/10.1111/... @globalchangebio.bsky.social
onlinelibrary.wiley.com
Strong Changes in Soil Nutrient Stocks in Northern Forests Over Four Decades
Northern forests are currently taking up large quantities of carbon due to tree growth. Yet, it is not known how the stocks of soil nutrients have responded to this increase in biomass. Therefore, we...
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Benjamin Wildermuth @bmwildermuth.bsky.social · 02/12/2025
New study on arthropod declines @natecoevo.nature.com 🪲 In two time series @jena-experiment.bsky.social & @bexplo.bsky.social we show how community (dis)assembly underpins local biomass declines. It mostly boils down to species loss, with identity losing relevance. www.nature.com/articles/s41...
nature.com
Arthropod species loss underpins biomass declines - Nature Ecology & Evolution
Insects are declining in many regions. Here the authors show that arthropod biomass losses in Jena Experiment and Biodiversity Exploratories time series are driven more by species loss than by species...
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 29/10/2025
Tomorrow (30th) at 11am CEST, Clara Thoma from agroforst.de will talk about creating resilient landscapes through agroforestry🌳🪱🌱 Register here: docs.google.com/forms/d/e/1F... Seminar series Forest Ecology: Science&Practice www.uni-goettingen.de/de/701005.html #agroforestry
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Landscape Ecology and Ecosystem Dynamics @leed-greifswald.bsky.social · 21/10/2025
Wir sind im Fernsehen!!! 🌳🍂🥳 www.ndr.de/fernsehen/se...
ndr.de
Fit für den Klimawandel: Forschende in den Baumkronen
Wie gestresst sind die Bäume durch den Klimawandel? Die Wissenschaftler untersuchen mit einem 45 Meter hohen Drehkran die Kronen.
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 17/10/2025
📢 Save the date! We're hosting the mini-conference on October 23rd 2025 at the @forstunigoe.bsky.social . A full day of talks on forest microbiomes, physiology, conservation and more! 🌳🌲 Register at: www.uni-goettingen.de/de/581694.html #forestecol #scicomm #forestry #seminar #rtg2300
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 13/10/2025
Today at 3pm CEST, EnriCo-alumna Larissa Topanotti will talk about navigating her scientific work through forest ecology, management and life' twists 🌲🌍🍺 Register here: docs.google.com/forms/d/e/1F... Seminar series Forest Ecology: Science&Practice www.uni-goettingen.de/de/forest+re...
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Rebecca R Helm @rebeccarhelm.bsky.social · 24/09/2025
I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA 10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)
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Klara Mrak @mrakklara.bsky.social · 20/09/2025
It seems that everything i know about fungi is wrong
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Klara Mrak @mrakklara.bsky.social · 17/09/2025
On watching logs rot 🫠
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Matt Betts @mattbetts42.bsky.social · 17/09/2025
Old-growth Douglas-fir / western hemlock forest, Pyramids, Oregon
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Klara Mrak @mrakklara.bsky.social · 14/09/2025
The second talk is by me, tune in on Tuesday 10:30 🙃
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Patrick Vallely @pjvphotography.bsky.social · 28/08/2025
"Pat, why do you carry that ridiculous 600mm lens on long hikes?" Buddy, I can see mountains reflected in the eyes of a trailside pika.
A pika sits on a mossy rock.Tighter crop of the same pika, focusing on its head.An even tighter crop, focusing more on the pika's eye.An extremely tight crop of the pika's eye, emphasizing their reflection of an early morning mountain scene.
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Michela Audisio @michela-audisio.bsky.social · 23/08/2025
Pleased to invite you to the online seminar series "Forest Resilience: Science and Practice" by the #CompetenceCentreLandscapeResilience. We'll hear about exiting research and inspiring insights from the experts career journeys 🧭🌳🌲 🗓 Program & registration: www.uni-goettingen.de/de/701005.html
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EnriCo - Uni Goettingen @enricounigoe.bsky.social · 18/08/2025
Join us for a walk to learn about forest resilience and more! Begleite uns auf einem Waldspaziergang und erfahre Spannendes über die Widerstandskraft des Waldes und mehr! www.uni-goettingen.de/de/699412.html #forestecol #wald #goettingen
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Klara Mrak @mrakklara.bsky.social · 19/12/2024
Thats whats up, am dr mama
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