I am hiring a Postdoc on Plant Ecophysiology to join our new group at U Nebraska. The link below has the full ad and instructions for applying. Please share widely! #botany #botanyjobs #ecophysiology #ecophysjobs #globalchange employment.unl.edu/postings/102...

Summer Heat Stress Downregulates Photochemistry in Coast Redwoods by @lilyklinek.bsky.social et al. agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Summer Heat Stress Downregulates Photochemistry in Coast Redwoods

When warmer than the surrounding air, coast redwood needles decrease their photosynthetic capacity and quantum yield Under experimental conditions, net photosynthetic rates decrease nonlinearly w...

agupubs.onlinelibrary.wiley.com

🌲 From JGR Biosciences: Coast redwood photosynthesis declined above 30°C as heat directly constrained leaf biochemistry, potentially reducing forest carbon uptake. (Lily Klinek, Jessie Au, Milagros Rodriguez-Caton, Troy S. Magney) ▶️ agupubs.onlinelibrary.wiley.com/doi/10.1029/... #PlantScience

Summer Heat Stress Downregulates Photochemistry in Coast Redwoods

When warmer than the surrounding air, coast redwood needles decrease their photosynthetic capacity and quantum yield Under experimental conditions, net photosynthetic rates decrease nonlinearly w...

agupubs.onlinelibrary.wiley.com

Call for plant ecophysiologists! Do you have Fv/Fm or F0-rise data? Do you know someone who might? @seanmichaletz.bsky.social and @nicolebison.bsky.social would love to hear from you. (Bonus if your data are from Asia or Africa.) Please share widely! #ecology #botany #ClimateChange #HeatTolerance

What are dendrometers and why do we need a global dendrometer network? 💥Our first GDN paper is out! We document how it all started with a meeting in Norway, and outline some of the great potential that lies in creating a global community. Read: doi.org/10.1093/tree... Join: globaldendro.org

Excited to share our new paper on leaf scorching. 🔥Early leaf browning during heat and drought is often interpreted as premature leaf senescence - but it may reflect rapid heat damage. Separating these processes is essential. www.nature.com/articles/s41... @wslresearch.bsky.social

Excited to share to 2 recent papers. "Decoupled carbon assimilation and growth responses to aridity in temperate deciduous oaks." Main finding: photosynthesis≠growth & growth is more sensitive to drought. This likely has implications for forest carbon under climate change doi.org/10.1126/scia...

Decoupled carbon assimilation and growth responses to aridity in temperate deciduous oaks

Long-term carbon sequestration as woody biomass in oaks is decoupled from photosynthesis and more sensitive to climate change.

science.org

Researchers compared “simulations of the Community Land Model (CLM) to a statistical model built on dendrometer observations, showing that CLM underestimates decreases to growth under elevated VPD by a factor of 2–3” agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Land Models Likely Underestimate the Impact of Future Atmospheric Dryness on European Tree Growth

The land absorbs one third of human CO2 emissions, making it critical to understand how tree growth will respond to climate change Drier air reduces photosynthesis and the processes of cell divis...

agupubs.onlinelibrary.wiley.com

Even as trees photosynthesize late into the year, their growth stops by mid-summer, which impacts their carbon uptake, finds a new study of oak trees led by @lamont.columbia.edu ecoclimatologist @mukund24rao.bsky.social. ➡️ Learn more: https://bit.ly/4fRTE3v

Join LDEO scientists at Brooklyn's @pioneerwork.bsky.social: * Apr 9 Do Forests Feel with @mukund24rao.bsky.social & Cari Leland of LDEO Tree Ring Lab: https://bit.ly/3NkuVZN * Apr 12 2nd Sundays with Rao & Leland + climate scientist Marco Tedesco on Greenland's melting ice: https://bit.ly/47kybep

Graminoids had the best heat tolerance, but plant growth form did not predict response to active warming in a #heatwave experiment led by @scienceanu.bsky.social PhD student Tom Hanley using @tern-aus.bsky.social AMRF infrastructure. doi.org/10.1111/jvs.70109 🧪 #ecology #ecophysiology #wildOz

Journal of Vegetation & Applied Vegetation Science@jvs-avs.bsky.social · 8mo ago

How do alpine plants cope with multiday heat? Hanley et al. report that photosystem heat tolerance acclimated during field warming, but recovery was slow and strongly species-specific. These differences may shape future alpine community responses to heatwaves.

A new paper by @anaigmendez.bsky.social vin Geophysical Research Letters shows that the oxygen isotope ratio of the annual rings of tropical conifers in Central America records rainfall amount and tracks large-scale tropical atmosphere ocean dynamics! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Oxygen Isotopes in Tree Rings Track Neotropical Climate Dynamics

Tree-ring δ18O from Abies guatemalensis in Central America captures interannual variations in boreal summer rainfall Lighter δ18O years are associated with a weakening of the Caribbean Low-Level ...

agupubs.onlinelibrary.wiley.com

📢 A new publication from our team is now out in the @ecologicalsociety.bsky.social BULLETIN! 👉 doi.org/10.1002/bes2... It shows how community, collaboration, & multilingual science are not extras—they are essential for equity in ecology. 🌎 📢Please share to amplify Latin American voices!

The first International #Dendrometer Network meeting brought together 50+ researchers from around the world! 🎉 🌍 Stay connected — join our mailing list for updates & opportunities: 👉 forms.gle/FAi5iyoucaAY... #TreeGrowth

We found that when temps hit 30°C+, C3 plants start struggling - their carbon metabolism gets disrupted, they burn through sugar stores faster, and even their isotope signatures change. Meanwhile C4 plants? They're basically chilling like "this is fine" 😎 www.nature.com/articles/s44...

Hot and Hungry - High temperatures induce changes in leaf carbon dynamics and sugar isotope fingerprints - npj Science of Plants

npj Science of Plants - Hot and Hungry - High temperatures induce changes in leaf carbon dynamics and sugar isotope fingerprints

nature.com

🎤Hi #dendrometer users! You are invited to join our new Dendrometer Network (catchy name still tbd 😜). Online meeting 10:30-12 CET Friday 12 Dec. Please share and let me know if you want to join and I will send the meeting link 🌴🎄🌳🌲

"Overlooked and extensive ghost forest formation across the US Atlantic coast" -- wow what a comprehensive analysis by Yeung, @xiyang.bsky.social et al. 🎉 www.nature.com/articles/s41...

Overlooked and extensive ghost forest formation across the US Atlantic coast - Nature Sustainability

Large swathes of standing dead trees or ‘ghost forests’ can form owing to rising sea levels in coastal areas, but the extent to which this occurs is unclear. This study maps ghost forests at the indiv...

nature.com

www.nature.com/articles/s43... Fun collaboration with @jingfengxiao.bsky.social Papale, Ichii @fluxnet.bsky.social and others. Hope you all enjoy

Insights into terrestrial carbon and water cycling from the global eddy covariance network - Nature Reviews Earth & Environment

Long-term monitoring is essential to characterizing the responses of carbon and water fluxes to global environmental change drivers. This Review synthesizes the insights gained into these changes from...

nature.com

Encantado de participar en este seminario sobre bosques y el cambio global el próximo martes 18 de noviembre. Se puede inscribir aqui forms.gle/UDTPBN9rQLcL.... Organizado por @esalatamcarib.bsky.social (gracias!). @ecologicalsociety.bsky.social @lamont.columbia.edu

ESA Latin America & the Caribbean Chapter@esalatamcarib.bsky.social · 11mo ago

¡Acompáñanos en el próximo seminario de Con-Ciencia en las Américas! 🌎 🌳 Dinámicas del cambio global en bosques tropicales 🗓 Martes, 18 de Nov | 🕛 12:00 PM ET 🔗 En vivo por YouTube: www.youtube.com/watch?v=5e9t... 💬 Envía tus preguntas y suscríbete: forms.gle/UDTPBN9rQLcL...

deadtrees.earth — An open-access and interactive database for centimeter-scale aerial imagery to uncover global tree mortality dynamics. www.sciencedirect.com/science/arti... Led by @cmosig.bsky.social

Extreme weather events are linked to climate change, and while the "overall picture" has been wetter in recent years, "the rainfall comes more in extreme events, and then you can go for very long periods without rain," says @lamont.columbia.edu expert @mukund24rao.bsky.social. Via @nytimes.com.

Drought Mutes Northeast Leaf-Peeping Season

nytimes.com

Dendrometer workshop in Ås, Norway. 🇳🇴🌳

The second session is all about assessing and detecting stress effects. We are about halfway through with a great talk by @yuwenzhang6666.bsky.social #DendroNet

Please reach out if you are looking for a postdoc fellowship and are interested in ecosystem-climate interactions!

Lamont-Doherty Earth Observatory@lamont.columbia.edu · last yr.

📣 Postdoc opportunity alert! Join our dynamic community of Earth, environmental, and climate scientists as LDEO postdoctoral fellow. Principal criteria: scientific excellence + clear plan to investigate problems at forefront of Earth science. ➡️ Apply by Nov 7: lamont.columbia.edu/about/postdo...

Some thoughts from me and others on how the ongoing drought in the Northeastern US may impact autumn foliage this year.

🌳 🪓 When the chopping begins, history ends. At Columbia's Tree Ring Lab, every piece of timber tells a story.

Rings of Time: Seeking Clues to the Future in Urban Timber

Lamont scientists are working with lumber salvage companies to preserve old timbers from demolished structures that offer rich clues to climate data and human history.

news.climate.columbia.edu

New Tansley review paper from Zoe Pierrat & friends in @newphyt.bsky.social linking proximal remote sensing with ecosystem fluxes! Synergies and best practices for hyperspectral reflectance, SIF, thermal, microwave and lidar 🌈🌲🗼🛰️🧪 nph.onlinelibrary.wiley.com/doi/10.1111/...

Future #climate projections of tree cover suggest the boreal forest is headed for an open state (⬇️🌲in south & ⬆️🌲in north) But, how will boreal tree cover dynamics influence—and be influenced by—climate feedbacks? We discuss this in a new commentary @pnas.org. 🧪 www.pnas.org/doi/10.1073/...

Why does hyperspectral reflectance work for tracking plant physiological dynamics? I recently wrote a commentary for @newphyt.bsky.social about that, targeted for a broad audience of plant scientists 🍃🌈🧪 nph.onlinelibrary.wiley.com/doi/10.1111/...

Hyperspectral reflectance integrates key traits for predicting leaf metabolism

Click on the article title to read more.

nph.onlinelibrary.wiley.com