Just planted Sequoia sempervirens/Coastal Redwoods, the first of 12 tree species I will be studying during my fellowship here in California 🌲🌳🔬

🌳PhD Opportunity in plant ecophysiology🌡️ Join EPFL (Switzerland) for fully-funded 4yr PhD on tree responses to air drought and heat. Climate chamber + long-term experiments to uncover physiological thresholds under climate change. www.epfl.ch/labs/perl/pe...

In our recent study, we demonstrate how high temperatures alter leaf-level C dynamics, resulting in a significant shift towards sugars as the primary C reserve, and concurrent shifts in 2H and 18O composition @lehmannlab.bsky.social @arthurobuntspecht.bsky.social @wslresearch.bsky.social

🎉🆕📰🎉: Primary and secondary growth of Pinus halepensis are more sensitive to inter-annual drought variability than to 14 years of rainfall exclusion in a Mediterranean forest doi.org/10.1093/aob/...

Featured on the cover of @globalchangebio.bsky.social is a thermal image of Elaeocarpus Grandis taken at @jcuofficial.bsky.social Daintree Rainforest Observatory. In this species we find that populations originating from warmer climates have narrower leaves with higher rates of water loss.

#JobAlert! Experience in leading #research groups and developing research projects? Are you proactive and do you have strong negotiation skills? We are looking for a new head of the #ForestResources and Management Research Unit: apply.refline.ch/273855/1725/... #ScienceJobs #SustainableManagement

Nice diversity among my different Quercus pubescens genotypes from 1) Pfynwald, Switzerland; 2) Crete, Greece; 3) Barcelona, Spain. 4) is Quercus infectoria ssp veneris from Polis, Cyprus (the massive ones next to the pub) which are growing unexpected fast.

After a month of more rain, trees and shrubs are starting to have crispy leaves again. Lets see how far they will dry out during the next few days, and whether there will be enough rain comming next week to make them recover. I doubt that there is a future for most native tree species

Hiking on the Azores is often hiking through novel ecosystems with probably over 90% introduced plant species. Likely the future of many regions until the end of this century due to the expected strong missmatch between the climatic conditions and the bioclimatic envelope of the native species

First signes of early #drought are visible on trees and shrubs in a forest close to my hometown. While the current (~25mm) rain helped for sure, this water will already soon be evapotranspirated based on weather projections. Lets see how severe the drought will hit during the comming months

Only few people know that we have (introduced) wild cacti in Switzerland. Today, I was finally able to visit Opuntia phaeacantha and O. mesacantha in Sion, Valais. I wonder if the native lizarsds are also eating and disperse them as the lizards on the Canary Islands do

Showing off our figure of global conifer leaf-widths & leaf silhouettes highlighting that conifers can be broad-leaved & angiosperms can be narrow/ needle-leaved! 🍃 Our paper: tinyurl.com/mss2me7v @newphyt.bsky.social @vallicrosah.bsky.social @botanykat.bsky.social & Matilda Brown

#PlantSciJob alert! Graham Farquhar's group at ANU @biologyanu.bsky.social @scienceanu.bsky.social is hiring a research assistant to help with their portfolio of stable isotope + #ecophys #PlantScience research (including @li-corenv.bsky.social support). Apply by 2 July 2025. Please share! 🧪

Our latest study (submitted to JXB) is now available as a preprint. We emphasise the importance of directly measuring the CO2 flux of whole plants.🧵

Contrary to popular belief, what is important in science is as much its spirit as its product: it is as much the openmindedness, the primacy of criticism, the submission to the unforeseen, however upsetting, as the result, however new that may be. – Francois Jacob www.nature.com/articles/s41...

Tracing Oxygen and Hydrogen Isotope Signals From Water Sources to Tree‐Ring Compounds - Diao et al. - Plant, Cell & Environment onlinelibrary.wiley.com/doi/abs/10.1...

🎉 Congratulations to my PhD student Julie Botzas-Coluni who won the prize for the best poster at the Swiss Animal Nutrition Conference 2025 @ethz.ch #AgroForageTreeProject @snsf.ch @agroscope.bsky.social

Death by a thousand cuts- areas rich in biodiversity being destroyed for housing. “There is plenty of completely degraded land with no biodiversity values at all to put those houses” www.theguardian.com/environment/...

🌲🖥️ #PhDAlert! MSc in a #natural #science & experience with #tree-ring analysis and statistical software (R)? Fluent in English and ready for #fieldwork? Our #forest dynamics #research unit is looking for a #PhD candidate in #dendroecology and #ecophysiology! apply.refline.ch/273855/1736/...

Update of my little oak nursery with seedlings of Quercus pubescens from Pfynwald/Switzerland, Barcelona, and Crete, as well as Quercus calliprinos from Crete and Quercus infectoria ssp veneris from Cyprus

Want More Bees in Your City? Mix Up Your Flowers A new study finds that cities can support more wild bee species by planting a greater variety of flower shapes—not just more flowers. botany.one/2025/05/want... Read the original research at doi.org/10.1002/eap....

I recently read & reviewed @olufemiotaiwo.bsky.social's book, 'Reconsidering Reparations'. The connections he draws b/t slavery, colonialism, capitalism, and climate justice are conversations we don't have enough of in ecological discourse. I recommend reading it. open.substack.com/pub/benlockw...

We have 3 players in a grassland: plants, microbes and soils. Who is winning on the fight for N under drought and warming conditions? Should we adapt our management strategies? Come to my #EGU25 talk on Wed to find out! BG3.5 @reclean.bsky.social meetingorganizer.copernicus.org/EGU25/EGU25-...

🌳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...

Great news that the 1st Guam Kingfishers released into the wild for 40 yrs are nesting. This bird may become the poster-child of assisted colonisation (and possible future speciation) as their new home is >3500 miles from Guam – London-to-New-York kind of distance. Background in this older link:

Our manuscript esajournals.onlinelibrary.wiley.com/doi/full/10.... got awarded #TopViewedArticle! Have you had the chance to learn about nutrients in tropical forests yet? Here we found evidence of some interesting nitrogen-phosphorus links!

⚠️ New paper out: Influence of #pastoral management on the #conservation of #mountain #pasture #biodiversity (available in English🇬🇧 and French🇫🇷). @agroscope.bsky.social @inrae-france.bsky.social

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

onlinelibrary.wiley.com/doi/10.1111/... 🌿How you measure heat tolerance matters! We tested 3 species under different methods & durations to find their thermal limits. @a-gthy.bsky.social @kateplantphys.bsky.social @philippschuler.bsky.social

My first paper is out! We investigated how #photosynthetic and #respiratory #thermal #acclimation 🌡️ and #canopy size 🌳 shape tree net #carbon uptake under prolonged warming and drought. Check it out: onlinelibrary.wiley.com/share/author... @charlottegrossiord.bsky.social @wslresearch.bsky.social

Leonie Schönbeck showed how drought tolerant species with leaves below turgor loss point maintain photosynthesis and avoid plasmolysis with me and @santiago-ecofiz.bsky.social. check it out online-library.wiley.com/doi/10.1111/...

'What excites me is the chance to work with incredible scientists from all over the world, some of whom are just starting their scientific journey.' In #Profile: Charlotte Grossiord 👇 📖 https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20404 #LatestIssue #PlantScience

Check out our new article just out in The Conversation highlighting the effects of warming leaves +4°C in tropical trees. 🌿🌡️ theconversation.com/study-shows-...

Happy to share the preprint of our latest study on 2H and 18O fractionation, showing the close connection between leaf sugar d2H and the leaf level carbon dynamics. This was part of the 4th chapter of my PhD thesis, however it is now much more improved compared to the thesis version 🥂

Interested in plants under climate extremes? 🍃🌡️💧❄️ Submit an abstract to our session at EGU in Vienna, 27th April- 2nd May 2025! meetingorganizer.copernicus.org/EGU25/sessio... Abstracts due Jan 15th @kateplantphys.bsky.social

The evidence for Homo sapiens playing the dominant role in the global #megafauna #extinctions constitutes one of the clearest, well-supported patterns in #ecology. See our 2024 review www.cambridge.org/core/journal... #paleobiology #archeology #hunting #ecosystem #Pleistocene #defaunation #rewilding

I really love to collect seeds of rare and/or species that are often not included in studies, so I can grow them by myself and use them in my future experiments #plantscience #botany #plantphysiology #oaks #quercus

Look at these amazing Quercus infectoria subsp. veneris with huge acorns, looking similar to the ones of ithaburensis. Closely related to Quercus pubescens and the other roburoids. Likely having important genes for introgressive adaptation of robur and petreae in Central and Western Europe

The recorded talks from the 46th New Phytologist Symposium: Stomata #46NPS are available to watch on demand! Check them out on our Cassyni channel: https://cassyni.com/s/newphyt2024 Our call for papers on stomata is open until 14 February 2025: https://www.newphytologist.org/news/view/353

Bad news for Myrtaceae in Europe: we detected the highly damaging myrtle rust on dutch indoor bonsai which were sold in Obi, Switzerland. I have contacted the dutch authorities in charge, responsible for the phytosanitary certificates, however they replied in an incredible disapointing way (1/2).

I finally managed to find Quercus alnifolia, the endemic oak species of Cyprus. Amazing how similar it is to Quercus chrysolepis from California - oaks are the master of convergent evolution and evolve the same traits over and over again! #botany #quercus #quercisalnifolia #plantscience

Not in english available yet but you can use a translator instead

The SNF just approved my research proposal to visit Todd Dawson's lab at UC Berkeley for two years 🌲☀️🌳 Seems like I will have to do my driving licence after all! 🏞️🏜️🌄 Thank you so much @snf-ch.bsky.social 🥂🎊

Check your baseline! It’s reasonable to assume that hippos in Colombia is a problem but studies don’t find the expected eco-catastrophe (doi: 10.1002/ECY.2991) Is it due to previous degradation from agriculture or a yet-small population? www.facebook.com/100001523860...

My department is hiring a fungal biologist! aprecruit.ucr.edu/JPF01990

Birds are excellent seed dispersers. Tip: To accelerate natural regeneration in an open landscape, "plant" some large dead branches in the ground. When birds fly over, they may stop for a rest on the branches, hopefully donating a deposit of seeds and fertilizer to your nat regen project!

I am excited to announce that we are organising again the #treering session at #EGU25. 🌲💍Abstract submission is now open until Jan 15. tinyurl.com/sbdt4ezp KerstinTreydte Jernej Jevšenak Annemarie Eckes-Shephard and Pieter Zuidema #dendrochronology

How do tropical rainforest trees respond to warming? 🌡️🌿We experimentally warmed canopy leaves by 4°C for 8 months and found significant declines in photosynthesis and stomatal conductance, with no shift in Topt. Read the new paper, led by Kristine Crous here: shorturl.at/AVTOk

🎄✨Wrapping up the year with laughter, good food and great company! Our Christmas party was the perfect way to celebrate our journey together ❄️🎉