Once in a while I venture out of the Paleozoic to look at younger weird plants... Hermanophyton is a genus based on silicified stems from the Jurassic of the US. It is very likely a gymnosperm but beyond that its affinities are, well, "obscure". #paleobotany #FossilFriday 🌿⛏️ 🧵 1/3

Nearing the end of an enriching collaboration in Thailand to better understand the physiological mechanisms related to tree mortality within the LEAKY project 🌡️💦 Thanks to PEPR-FORESTT, the warm welcome from the National Biobank of Thailand and support from IRD-AMAP and Univ of Bordeaux 🌳🧪

Freshly published paper led by @santiagotrueba.bsky.social on leaf water losses across vascular plants 🌳🔬🧪 The 50-fold variation in gmin across ecological groups was weakly related to phylogeny with evidence for convergent evolution in response to climate 🌡️💦 @newphyt.bsky.social

Ecological drivers and phylogenetic patterns of leaf minimum conductance variability in vascular plants

Stomatal closure prevents significant water losses during drought events. Yet, leaves are not perfectly hermetic and dehydration ensues through residual water losses, known as minimum conductance (g...

nph.onlinelibrary.wiley.com

La recherche prend de la hauteur avec l'installation d'une passerelle dans la canopée de la forêt expérimentale de @univbordeaux.bsky.social 🌳 Cet aménagement facilitera l'accès aux branches, permettant de compléter les suivis au sol pour étudier la réponse des arbres au changement climatique. 🍃

Resharing new paper @newphyt.bsky.social 🧪 🌳We found a weak trade-off: drought resistant trees tend to be less frost-hardy & vice versa 🌡️🔥❄️ 🌲💪 Conifers are generally tougher than angiosperms🌺 🧐No "costs" related to fast-slow economics spectrum 🍃🌱 📖more: nph.onlinelibrary.wiley.com/doi/10.1111/...

Weak global trade‐off between frost and drought resistance in trees

Drought and frost stresses play important roles in determining species distributions, especially at range margins. Understanding how stress resistance traits interact to determine vulnerability to c...

nph.onlinelibrary.wiley.com

« Mitigating climate change requires ending the burning of fossil fuels. Offsets distract from this crucial task. »

Ketan Joshi@ketanjoshi.co · 10mo ago

There is a reason "offsetting" does not exist in the vast majority of cases of avoidable harm to human safety: it would be laughed off as physically absurd and outright fraudulent. Somehow, in the single most catastrophic physical threat facing our species, it became accepted as normal

Just published by Gonzalez et al. in @newphyt.bsky.social: Fifty shades of fade: linking transmittance loss to cellular death during leaf dehydration 🌳🔬 Check out our new way to follow cellular mortality using cavicams at: doi.org/10.1111/nph....

Our new study from RWANDA TREE shows that: Species with big leaves & low stomatal conductance tolerate more heat, but with tighter safety margins. Heat tolerance acclimates,but partially:+0.31°C per +1°C Tgrowth Leaf temperature matters more than heat tolerance for survival. doi.org/10.1111/pce....

Photosynthetic Heat Tolerance Partially Acclimates to Growth Temperature in Tropical Montane Tree Species

Climate warming poses a risk to tropical montane trees by narrowing their thermal safety margins, particularly in species with traits that lead to higher leaf temperatures. While photosynthetic heat ...

doi.org

New Article: "Leaf venation network evolution across clades and scales" rdcu.be/epLNP Evolution of leaf venation networks, from fewer, corrugated veins to high vein density and smoother loops. Herbivory as a potential driver of venation architectural changes.

Stronger photosynthetic plasticity to warming in the Andes than in Afromontane tree species Congrats @mirindidusenge.bsky.social et al. ! onlinelibrary.wiley.com/doi/pdf/10.1...

Unexpected Large Photosynthetic Thermal Plasticity of Montane Andean Trees

Tropical forests play a significant role in global carbon sequestration. However, our understanding of how tropical tree species adjust to climate warming remains limited to studies on seedlings grow...

onlinelibrary.wiley.com

📢Interested in plant drought resistance and tree mortality?🌳🌿 👥Join us to explore key physiological mechanisms behind these processes! 👨‍🎓We’re seeking strong candidates to apply for a MSCA #Postdoc Fellowship in our team. 🗓️Deadline: 10 Sept 2025 → t.ly/LmD1P #PlantScience #Drought #TreeMortality

I have commented that recent paper on LinkedIn. It’s the most important article published so far showing the effect of climate change in the last two decades, especially increase temperature, on fruit and seed crops in an Amazonian rainforest. doi.org/10.1111/ele....

Seed Production and 22 Years of Climatic Changes in an Everwet Neotropical Forest

This study examined how five climatic variables influence seed production at the community level in an everwet Amazonian forest over 22 years. We found that rising nighttime temperatures and decreasi....

doi.org

🌿🔥How heat and VPD shape tree survival? We tested how acclimation to high temperature & VPD impacts drought mortality. While heat speeds up death via leaf area expansion, VPD acclimation slows it down by enhancing stomatal control - balancing mortality timing. doi.org/10.1111/PCE....

Cool viewpoint on the impact of extreme temperatures on cell death. Perhaps some ecophysiology is required to articulate whole-plant observations and cellular mechanisms 🌿

Joanna Kacprzyk@joannakacprzyk.bsky.social · last yr.

Temperatures that switch on plant programmed cell death are now reality. In our new viewpoint article @newphyt.bsky.social, we propose that studying the heat induced mortality at cellular level can contribute to strategies for heat stress mitigation. nph.onlinelibrary.wiley.com/doi/full/10....

Residual leaf water loss changes during drought, impacting on future predicted plant mortality Led by @regisburlett.bsky.social with @santiagotrueba.bsky.social @martin-stpaul.bsky.social @hcochard.bsky.social @sdelzon.bsky.social @guillaumefo.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...

Minimum leaf conductance during drought: unravelling its variability and impact on plant survival

Leaf water loss after stomatal closure is key to understanding the effects of prolonged drought on vegetation. It is therefore important to accurately quantify such water losses to improve physiolog...

nph.onlinelibrary.wiley.com

Are tropical forests in the Americas changing as adaptation to ongoing climate change? Yes, they are! Are these changes enough to track their suitable climate? Not quite! Check out our paper in @science.org www.science.org/doi/10.1126/... to see more of what our network has been working on!

Tropical forests in the Americas are changing too slowly to track climate change

Understanding the capacity of forests to adapt to climate change is of pivotal importance for conservation science, yet this is still widely unknown. This knowledge gap is particularly acute in high-b...

science.org

Leaf minimum conductance dynamics during and after heat stress: Implications for plant survival under hotter droughts (Viviane de Araújo Brito Fernandes, Fernanda Santos Farnese, Brenner Ryan Arantes, et. al.) https://doi.org/10.1093/plphys/kiaf026 @ASPB #PlantScience

Help us empower #womeninSTEM ! Join our FREE global #webinar event to celebrate #women in #forest #science! Find out more and register 👇 a-48350767.hubspotpagebuilder.com/en-us/ #foresthealth #freewebinar #climatechange #forestpolicy @iufro.bsky.social

At least 3 recent papers have generated considerable debate on the interpretation of research on common mycorrhizal networks (Karst et al., Henriksson et al., Robinson et al.). They stirred questions on our relationship with epistemology, our understanding of forest functioning,

This morning at 10 (GMT+1), Olivier Manzi will defend his PhD thesis. Check it out :)

Dr Olivier Jean Leonce Manzi@olivierjlmanzi.bsky.social · 2y ago

On Friday (17/01/2025) at 10:00 AM Swedish time,I will defend my doctoral thesis, "Heat and drought responses of tropical trees in a warming world ( gupea.ub.gu.se/handle/2077/84…" The opponent is Prof Emanuel Gloor https://gu-se.zoom.us/j/65080289605?pwd=hjt3BmHE6Hi8Jl3vlz8gwUZkUrM5St.1

We are looking for three 3-year post doc positions within the #WIFORCE research program Future Silviculture #SLU #Umeå. Please share! Carbon and water fluxes in boreal forests Drivers of xylem embolisms in forests Tree belowground site occupancy in boreal forests www.slu.se/en/about-slu...

New in #NewPhytologist: Temperature governs the relative contributions of cuticle and stomata to leaf minimum conductance (shorturl.at/f9h7O) - Exciting work with #MichaletzLab PhD graduate #JosefGaren @ubcbotany.bsky.social @ubcbiodiversity.bsky.social @science.ubc.ca @newphyt.bsky.social

Will tropical montane tree species climb "the escalator to extinction"?

Andrew Hacket-Pain@andrewhacket-pain.bsky.social · 2y ago

🚨 #PhD alert! Can #tropical trees migrate up mountains to track climate change? 🌳🌱⛰️ If they can’t, extinction may follow. Help us answer this question, working in tropical forests in the #Andes. Amazing fieldwork opportunities, & mega team led by @belenfadrique.bsky.social. tinyurl.com/mr35spbj

A transplant experiment involving mosses along ... 59 sites!

Ecography@ecography.bsky.social · 2y ago

Competitive interactions modify the direct effects of climate https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/ecog.07322 #ClimateChange #Bryophytes #Distribution

From mapping forest function and disturbances, exploring forest dynamics to mortality from drought, 2024 has seen several analyses we've been working on for years finally come out. Here's a quick summary of them, @julenastigarraga.bsky.social @n-acil.bsky.social @daijunliu.bsky.social

Are you in Lausanne, Switzerland next week? Come and hear me (a scientist) and Maja Renn (a performance artist) discuss Maja’s current piece '[Pheno]plasticity' from scientific & artistic perspectives!! Wednesday, 4 December 24, 2.45pm – 3.45pm Salle MED 2 2423 EPFL, Lausanne Free admission (1/4)

La forêt connectée comme dans Avatar ? www.epsiloon.com/tous-les-num...

La vie secrète des arbres : la théorie s’effondre

L’idée est si émouvante qu’elle a conquis le public, Hollywood, et jusqu’aux plus hautes institutions  : les arbres communiqueraient via un réseau secret… Sauf que c’est faux. Les scientifiques ont...

epsiloon.com

🚨 PhD: "Forests on the edge: examining vegetation recovery following climate extremes" at @bristolbiosci.bsky.social with myself, Lina Mercado (Exeter) and Eddy Robertson (UK Met Office). I would REALLY love to find a student for this, please share widely (thanks) www.findaphd.com/phds/project...

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, submission info here: egu25.eu/programme/ho...