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
I am in total support of this method
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! 🧪
Furthermore, we tracked the net CO₂ flux of germinating acorns (Quercus robur) until they completed their first flush. Finally, we conducted temperature response experiments with Q. robur seedlings to identify the temperature above which they have a negative net carbon balance.
We measured the net CO₂ flux of three C₃ and three CAM species over several days, as well as measuring the C₃ species over several days of continuous light and darkness, in order to investigate potential circadian rhythms.
To prove the reliability of the measurements and explore potential future experimental studies, we investigated net CO₂ fluxes in 4 experiments.
In most studies, the net C balance of the whole plant is modelled based on measurements of leaves, twigs and roots. However, measuring CO₂ fluxes of heterotrophic tissues is challenging, and CO₂ is redistributed inside the plant via sap flow.
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...
