Marco M. Lehmann
@lehmannmm.bsky.social
Biogeochemist seeking to understand stable isotopes in plants.
🌳Urban trees keep cooling - even during record-breaking heatwaves! We show that trees maintained high transpiration, defying model predictions. Tree cooling during heat may be underestimated 🌡️💦 Great study led by Christoph Bachofen @wslresearch.bsky.social doi.org/10.1016/j.uf...
Do aquaporins play a key role in regulating leaf gas exchange—especially under unsaturation in the stomatal cavity at high VPD? We think so! Check out our opinion piece in Plant, Cell & Environment with Haoyu Diao and @arthurobuntspecht.bsky.social: 📄 doi.org/10.1111/pce....
A nice variability between the seedlings of Quercus pubescens from Pfynwald/Switzerland, Barcelona/Spain, and Crete/Greece. Looking forward to test how they cope with heat stress above 40°C
Globale Umverteilung von Wasser: Die Erde trocknet aus. s. auch letzten Sachstandsbericht des Weltklimarats/IPCC: www.ipcc.ch/report/ar6/w... www.ipcc.ch/report/ar6/w... @lese66.bsky.social @usyseth.bsky.social @tagesanzeiger.bsky.social www.tagesanzeiger.ch/klimawandel-...
Globale Umverteilung von Wasser: Die Erde trocknet aus
Erstmals lässt sich aufzeigen, wie der Klimawandel den globalen Wasserkreislauf verändert. In Südeuropa hat die Bildung von Wüsten laut Forschenden bereits begonnen.
tagesanzeiger.ch
Extremes! Der Stand der Forschung zu zukünftigen Extremereignissen, besonders zu #Trockenheit, und mit der Praxis entwickelte Lösungsansätze für den Umgang mit ihnen am Forum für Wissen 2025 am 3.4. an der WSL: www.wsl.ch/de/veranstal... #Extremereignisse #Hitze #Schweiz #ForumFürWissen
Forum für Wissen 2025: Extremes
Das WSL-Forschungsprogramm Extremes organisiert ein eintägiges Forum für Wissen am WSL-Standort Birmensdorf. Die Veranstaltung vermittelt den Stand der Forschung zu zukünftigen Extremereignissen, insb...
wsl.ch
Interesting summary how politics influences scientific freedom, but not sure why Switzerland is only in the top 30%-40%. academic-freedom-index.net/research/Aca...
academic-freedom-index.net
30 Jahre Langfristige Waldökosystemforschung #LWF an der @wslresearch.bsky.social: Zusammenfassung der wichtigsten Ergebnisse zum Zustand des Schweizer Waldes in der #SZF: www.szf-jfs.ch/de/archiv/02...
Archiv
szf-jfs.ch
Deephydrogen! If you want an update about the processes shaping #hydrogen #isotopes in plant compounds, check our recent paper in PC&E! doi.org/10.1111/pce.... @wslresearch.bsky.social
New insights into the processes shaping #hydrogen #isotopes of leaf #lipids and #carbohydrates. Based on novel experimental data from a boreal pine forest. @wslresearch.bsky.social in collaboration with LUKE and @uzh-ch.bsky.social. @newphyt.bsky.social doi.org/10.1111/nph.... #Drought
Time‐integrated δ2H in n‐alkanes and carbohydrates from boreal needles reveal intra‐annual physiological and environmental signals
Reliable insights from key δ2H bioindicators, n-alkanes and carbohydrates, are hindered by our limited understanding of isotope fractionation processes related to leaf water and primary assimilates......
doi.org
🥼 🖥️ #PhDalert! MSc in #environmental #science or related, experience with #field #data collection & strong background in #statistical #analysis? The Biogeochemistry research group is looking for a #PhD student in #Plant #Water #Relations. 🌊🌱 apply.refline.ch/273855/1709/...
🌲 🥳 Save the date: 13.09.25 Open day at the Stillberg research site to celebrate its 50th anniversary! In 1975, WSL and SLF planted 92,000 trees in a joint project on the Stillberg in the Dischma Valley near Davos. On 13 Sep the public can visit this long term research site.
Save the date: 50 Jahre Forschungsfläche #Stillberg, Davos 13. September 2025 1975 pflanzten #WSL und #SLF am Stillberg 92'000 Bäume, um den #Schutzwald zu erforschen. Zum Jubiläum öffnen wir unsere Forschungsfläche für alle! Infos: www.slf.ch/stillberg50 📷️ E. Dimitrov / W. Schönenberger / C. Rixen
🌿 PhD Opportunity! 🌿 4-year PhD at WSL Birmensdorf on tree reliance on deep soil water, in collaboration with ETH Zürich & TUM in a top research team! 🔬 Ecohydrology | 🌱 Tree water use | 🤝 ETHZ & TUM More info: apply.refline.ch/273855/1709/pub/1/index.html #PhD #Ecohydrology #WSL #ETHZ #TUM
PhD student in Plant Water Relations
The Forest Soils and Biogeochemistry research unit investigates the impacts of climate change on soil biodiversity, soil functions, and ecosystem processes. The Biogeochemistry research group is looki...
apply.refline.ch
Sanktionen gegen die Wissenschaft - Donald Trumps Feldzug gegen die Wahrheit @spiegel.de : www.spiegel.de/wissenschaft...
(S+) Donald Trump: Wissenschaft in den USA unter Druck durch Einschüchterung und Zensur
Einschüchterung, Geldsperre, Zensur: Mit Macht geht US-Präsident Trump gegen die Wissenschaft vor. In den Umwelt- und Gesundheitsbehörden geht die Angst um. Die Folgen könnten drastisch sein – auch fü...
spiegel.de
One week left to get active in Germany. Go #vote. For #democracy for #climate for our #future. Time to act is now
More than 90% of fossil fuel emissions occurred since my parents were born. Over 80% since I was born. Over 30% since my children were born. And well over 50% since the world agreed at the Rio Earth Summit to prevent dangerous climate change. And I thought: „At last!“
Researchers spend approximately 45% of their time on administrative activities related to #grants rather than actual #research. The current #competition in research #funding has significant drawbacks; evidence-based improvements of the funding system are required: www.pnas.org/doi/10.1073/...
The costs of competition in distributing scarce research funds | PNAS
Research funding systems fundamentally influence how science operates. This paper aims to analyze the allocation of competitive research funding fr...
pnas.org
#Isotope Folks!! We are thrilled to invite you to our #EGU25 𝐬𝐞𝐬𝐬𝐢𝐨𝐧 𝐨𝐧 𝐈𝐬𝐨𝐭𝐨𝐩𝐞 𝐄𝐜𝐨𝐥𝐨𝐠𝐲 across ecosystems, life forms, scales, & cutting-edge methods. Share your research & join this interdisciplinary discussion! 🔗 Learn more: tinyurl.com/IsotopeEcolo... Abstract deadline: 15 Jan 2025
Season's greetings from everyone at the New Phytologist Foundation! https://www.newphytologist.org/
Imagine you could reconstruct and separate environmental impacts on complex metabolic processes from tree rings 🌲 - multidimensional isotopic fingerprints might make it possible: nph.onlinelibrary.wiley.com/doi/full/10....
Isotope Ecology folk. Call From Len Wassenaar and David Soto for a special issue to honour the great Keith Hobson think.taylorandfrancis.com/special_issu...
#Sciencejob Alert! Doktorabschluss #Umweltwissenschaften o.ä., wissenschaftliche Kompetenzen im Bereich #Bodenfunktionen und #Statistik sowie Flair für Kommunikation- und Teamarbeit? Wir bieten eine #Tenure Track Stelle in der Wissenschaftlichen Mitarbeit! apply.refline.ch/273855/1681/...
Join us on Tuesday morning at #AGU24 for our stable isotopes in the Critical Zone session! This has been running since 2016 and we've never had that this many abstract submissions like this year, which allowed us to have two oral sessions! An entire morning filled with great isotope studies!
C, O, H isotope method, promotes the use of multi-isotope studies in environmental sciences: A Simple Method for Triple Stable Isotope Analysis of Cellulose, Sugar, and Bulk Organic Matter—Advances and Limitations
A Simple Method for Triple Stable Isotope Analysis of Cellulose, Sugar, and Bulk Organic Matter—Advances and Limitations
Rationale Determining several isotope ratios in one analysis multiplies the information that can be retrieved from a sample in a cost-efficient way. The stable isotope ratios of hydrogen (δ2H), carb...
analyticalsciencejournals.onlinelibrary.wiley.com
**SAVE THE DATE** JXB turns 𝟕𝟓 in 2025. Come and celebrate with us in Edinburgh 🏴 17-19th Sept 🎉 🥳🍾 Featuring fantastic speakers, a program for early/mid career researchers, a conference dinner, posters, networking, workshops... More info soon...🌱 🌾 🌳 @sebiology.bsky.social 🧪 #plantscience
📢Call for Abstracts – EGU 2025: BG2.3: Isotope Ecology: Physiological Responses to Stressors across Ecosystems and Spatiotemporal Scales meetingorganizer.copernicus.org/EGU25/sessio... Submit your abstract by 15th Jan 2025 #EGU25 #Isotope #Ecology @lehmannmm.bsky.social
Session BG2.3
meetingorganizer.copernicus.org
Continues to CT scan oak samples, mostly for fun (and it is). 🌳💍 #dendrochronology
First things first!! Our simple but efficient method for the simultaneous determination of #carbon, #oxygen, #hydrogen in a sample, e.g. #cellulose, #sugar and organic material, is now published in Rapid Communications in #Mass #Spectrometry: doi.org/10.1002/rcm..... Happy reading and measuring!