Dr. Dirk N. Karger
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dirknkarger.bsky.social
Dr. Dirk N. Karger
@dirknkarger.bsky.social
Scientist bridging #Climate and #Biodiversity...
Reposted by Dr. Dirk N. Karger
🌿Fieldwork in the #Yasuni National Park, #Ecuador.🦜
Our researchers are studying the structural and functional properties of #rainforests to better understand and define #biomes.🌳🔎
November 8, 2025 at 7:27 PM
Reposted by Dr. Dirk N. Karger
A breathtaking sunrise with a view of the #Antisana volcano on the road from Quito to Yasuní National Park.☀️🌋
November 5, 2025 at 5:14 PM
Reposted by Dr. Dirk N. Karger
MeteoSchweiz, die @ethz.ch​ und C2SM präsentieren die neuen Schweizer Klimaszenarien.

Diese zeigen, wie sich das Schweizer Klima verändert, wenn die globale Mitteltemperatur z.B. um 3 Grad steigt.

#klimaszenarien #meteoschweiz #ETH #C2SM #NCCS
Die Schweizer Klimaszenarien 2025
MeteoSchweiz stellt in Zusammenarbeit mit der ETH Zürich und C2SM unter dem Dach des National Centre for Climate Services (NCCS) die neusten Erkenntnisse zum...
www.youtube.com
November 4, 2025 at 10:01 AM
Reposted by Dr. Dirk N. Karger
🔊 New paper: first integration of population genetics🧬 and dynamic species distribution modeling🌐 using #KISSMig to reconstruct postglacial dynamics of wild black pepper, endemic to India’s Western Ghats. #macroecology #popgen #phylogeography #biogeography

👉 onlinelibrary.wiley.com/doi/10.1111/...
September 22, 2025 at 10:46 AM
Reposted by Dr. Dirk N. Karger
🌎 Our BIOME project team has just begun a 3.5-week research expedition in Ecuador! 🇪🇨 They’ll be conducting fieldwork across diverse landscapes to study how biomes have evolved and how to define them. 🔎🌿🏔️ Stay tuned for field updates! ✨
👉BIOME project: shorturl.at/RLQPw
October 31, 2025 at 11:11 PM
Reposted by Dr. Dirk N. Karger
The BIOME team explored the high-altitude city of #Quito (2,850 m) before heading deep into the Amazon rainforest for fieldwork. 🌳🌿
November 4, 2025 at 10:23 PM
Reposted by Dr. Dirk N. Karger
New research reveals how to better monitor tree #drought #stress! We combined remote sensing data (greenness & photoprotection indicators) with leaf water potential measurements to track drought impacts across different tree species.
www.sciencedirect.com/science/arti...
Deciphering tree drought responses across species: linking leaf water potentials with remote sensing greenness and photoprotection dynamics
Monitoring forest drought stress requires indicators that capture tree water relations across species and scales. Remote sensing enables large-scale a…
www.sciencedirect.com
October 1, 2025 at 2:26 PM
Reposted by Dr. Dirk N. Karger
@clechartre.bsky.social reimplemented #BIOME4 into a modular, high-performance #Julia version, enabling 1 km vegetation modeling 🌱 and integration of #CHELSA climate datasets. 🌦️ We can now simulate biome patterns across complex terrains ⛰️ and define biome boundaries with greater accuracy. 🎯
July 10, 2025 at 7:32 PM
Reposted by Dr. Dirk N. Karger
Hiring/Seeking a *permanent* programmer in ecological modelling at my lab @unibonn.bsky.social. We mechanistically model plant communities, island biogeography, species range dynamics, eco-evolutionary feedbacks, diversity gradients, tropical forests, vascular epiphytes. Pls rt! shorturl.at/Bzzdt
Programmer in Ecological Modelling
Full-time, permanent, EG 10, Reference number: 2025/72
shorturl.at
July 10, 2025 at 7:00 PM
🌿 Join Our Team as Postdoctoral Researcher in Regional Climate Downscaling at the Swiss Federal Research Institute WSL in Switzerland and lead the development of regional, highresolution climate scenarios for Armenia. @wslresearch.bsky.social @wsl-dme.bsky.social apply.refline.ch/273855/1747/...
July 8, 2025 at 10:53 AM
Reposted by Dr. Dirk N. Karger
📢 BiodivClim Comics are here!
To mark the end of the BiodivClim programme, we've teamed up with @tnoc.bsky.social‬ to turn science into stories. Explore:
🌊 Tides of Change
🌾 The Wheat Code
🌲 The Forest of Forgotten Futures

📖 www.biodiversa.eu/2025/06/09/b...
June 10, 2025 at 10:22 AM
Reposted by Dr. Dirk N. Karger
Go check out our event-based evaluation!
Beyond the global scale patterns of increasing multi-year droughts, there are over 10,000 identified events inventoried with explicit spatiotemporal coverage, from which one could easily extract events of their whatever interest across disciplines and uses.
June 5, 2025 at 5:05 PM
Reposted by Dr. Dirk N. Karger
🌳🐝 #Sciencejob Alert! 🪲🌻Auf der Suche nach einem Job in der Schnittstelle zwischen #Forschung und Praxis? Das Synthesezentrum Biodiversität der #WSL sucht per 1. Juli 25 eine #wissenschaftlicheAssistenz #Biodiversität und #Naturschutzbiologie: apply.refline.ch/273855/1739/...
June 5, 2025 at 6:22 AM
Earlier this year, Chen et al. @science.org showed that droughts are intensifying globally, with warming. www.science.org/doi/full/10.1126/science.ado4245,
Now, Gebrechorkos et al. @nature.com confirms the same findings. Very important work, but not wholly novel doi.org/10.1038/s415...
Warming accelerates global drought severity - Nature
Increased atmospheric evaporative demand in recent years has increased drought severity by an average of 40% globally across both dry and wet regions, and the trend is likely to continue under future ...
doi.org
June 5, 2025 at 10:38 AM
Reposted by Dr. Dirk N. Karger
🌿 What makes plants in tropical ecosystems so unique & remarkably adapted to their environment? 🌸✨
We explored this question during a visit to the Botanical Garden in Zurich, guided by our group member dirknkarger.bsky.social‬ — a fantastic opportunity to observe tropical plant traits up close. 🔎🌱
June 3, 2025 at 3:38 PM
Reposted by Dr. Dirk N. Karger
Massive work by my friend and colleague @gabrielmoulatlet.bsky.social showing that most Amazonian species (vertebrates and plants) are exposed to metal contamination from mining activities

from Gabriel's postdoc w/ @bjenquist.bsky.social

#BiogeographyOfRisk
#Macroecology
May 27, 2025 at 5:29 PM
Reposted by Dr. Dirk N. Karger
🍁🌷🌼Interessiert an Tipps zur KI-basierten Pflanzenbestimmung mit FlorApp/FlorID der neuen Bestimmungstool für die #Flora der #Schweiz?🥀🌳

👉Dann melde dich an am "Festival der Natur"!

shorturl.at/1fEEv
festivaldernatur.ch

#Natur #Biodiversität #FestivalderNatur #PflanzenBestimmen
Sicher bestimmen im Feld – mit KI zur Zweitmeinung
Schwierig zu bestimmende Pflanzen? Da hilft ein unabhängiger Blick. Das neue Tool FlorID der WSL bietet genau das: eine verlässliche Zweitmeinung – direkt im Feld. FlorID nutzt KI der neuesten Genera...
shorturl.at
May 14, 2025 at 10:28 PM
Reposted by Dr. Dirk N. Karger
Will you live an unprecedented life?

In our new paper in @nature.com and accompanying @savethechildren.org report, we detect who will face unprecedented lifetime exposure to climate extremes (🧵) 1/n
Report: resourcecentre.savethechildren.net/document/bor...
Paper: www.nature.com/articles/s41...
Born into the Climate Crisis 2. An unprecedented life: Protecting children’s rights in a changing climate | Save the Children’s Resource Centre
The climate crisis is not a distant threat; it is a pressing reality that children are facing today. Despite having contributed the least to the climate crisis, the inherent intergenerational injustic...
resourcecentre.savethechildren.net
May 12, 2025 at 10:54 AM
Reposted by Dr. Dirk N. Karger
Die Geschichte dazu hier:

Zappa, M., Karger, D. N., & Hüsler, F. (2025). EXtreme Trockenheit in der Schweiz: Regionale und lokale Perspektiven einer globalen Herausforderung. In A. Björnsen (Ed.), WSL Berichte: Vol. 164. Extremes (pp. 13-21). doi.org/10.55419/wsl...
EXtreme Trockenheit in der Schweiz: Regionale und lokale Perspektiven einer globalen Herausforderung | DORA WSL
doi.org
May 8, 2025 at 9:00 AM
Reposted by Dr. Dirk N. Karger
8. Mai 2025 11:00

drought.ch ist nun vollständig umgesetzt.

2010: Beginn der Forschungsarbeiten
2013: Forschungsplattform geht Online
Mai 2022: Der Bund will vor #Trockenheit warnen
Mai 2025: Der Bund warnt vor Trockenheit

auf drought.ch werdet ihr nun auf die Seite des Bundes umgeleitet.
May 8, 2025 at 9:00 AM
Reposted by Dr. Dirk N. Karger
🔉Version 2.0 of our #KISSMig #Rstats package for #SpeciesMigration modeling is now live on #CRAN. 🎉 Together with Dominik Landolt we boosted performance by implementing parallel computing—making this simple dynamic #SDM faster than ever. Learn more about KISSMig here 👉 purl.oclc.org/wsl/kissmig
May 7, 2025 at 10:24 PM
Reposted by Dr. Dirk N. Karger
Mountain species are at risk of extinction as global temperatures rise—but how these risks will manifest remains unclear. 🌱🏔️ Bert Wuyts's research sheds light on this by exploring how habitats become fragmented & isolated as populations shift to higher elevations. He presented his results at #EGU25.
May 2, 2025 at 7:43 PM
Reposted by Dr. Dirk N. Karger
At WSL @wslresearch.bsky.social we are hiring a "Postdoc in Regional Climate Downscaling" for a forest/climate project in Armenia funded by the Swiss Development Cooperation (DEZA).
📍 Switzerland | 🕐 1.5 yrs | 📅 Start: Spring 2025
Details: apply.refline.ch/273855/1727/...
Please share widely.
April 16, 2025 at 8:51 AM
Reposted by Dr. Dirk N. Karger
In August 2020, Konrad "Koni" Steffen tragically disappeared on the ice of Greenland.💔 A documentary at Kino Frame in Zürich offers an intimate tribute to Koni, revealing the brilliant scientist and the warm, thoughtful human being. 👉 frame.ch/de/movies/334 @wslresearch.bsky.social
Der Eismann | Frame
Das Frame ist das Haus für kulturelle Begegnungen mit einzigartiger Lage an der Europaallee und das «Home of Zurich Film Festival». Das Kino gegenüber dem 25Hours Hotel bietet das ganze Jahr über ei...
frame.ch
April 16, 2025 at 6:29 AM