We need some more tree-posting on this app. This is the oldest known living Douglas-fir in Oregon (and maybe in North America?) I cored it to near the pith in 2006 and was able to re-visit it recently with some other forest scientists. It is at least 1015 years old, but probably ~1050.

Final version published @forestecosyst.bsky.social 📰The overlooked role of individual variability in autumn xylem phenology and carbon sequestration www.sciencedirect.com/science/arti...

More diverse forests have greater productivity, but do they use more water? A new meta-analysis by Shovon et al. in @journalofecology.bsky.social suggests not. 🌐🌏🧪 besjournals.onlinelibrary.wiley.com/doi/10.1111/...

#Evolution of #conifer seed cones 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... #TansleyReview by @kmatsunaga @WileyPlantSci #PlantScience

Spent yesterday sampling in the snow in eastern IN. Probably the oldest trees were 200 years and were likely the beech and black walnut. Tulipree was maybe 150. Not much oak in this forest though there were one or two nice bur oaks that were likely 200+

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...

Yes, there are conifers in Greenland! 🌲 500 yr-long Juniperus tree ring-based temperature reconstruction with oldest living shrub 367 yo! 💪 Striking here: 1/3 of corpus is from archive (collected end of 19th c) Highlights importance of reanalysing old samples using modern analytical techniques! 👏

Nice analysis of high res (10-25km) simulations shows super-CC scaling of precip extremes, driven by mesoscale dynamics not well captured by coarser models Mesoscale systems are an interesting challenge for ML, since they need non-local schemes + some memory www.nature.com/articles/s41...

Excited to be a small part of this new publication led by Quan Zhang. We examine the theoretical links between iWUE and tree productivity. While increases in CO2 lead to increases in iWUE, it is unlikely to lead to more tree growth due to environmental and physiological influences. rdcu.be/eRvbS

Went back to Tribbetts Woods today to sample. Swamp white oaks rough visual count put them at 250+. We sampled Nyssa and found some over 1m in diameter! No clue how old they are yet but could see some small rings.

Temperate deciduous forests are found in three global regions. We compared taxonomic and phylogenetic diversity of forest plant communities among these regions in a new Ecography article led by Javier Loidi and Josep Padullés Cubino: doi.org/10.1002/ecog... @ecography.bsky.social

Today’s local fieldwork was colder but older! I think we may have found some 300 yr old beech and sweet gum! Will be going back to this site in the future, some nice oak and Nyssa as well.

Some local fall fieldwork in southeast Indiana. Sample some 200-250yr old black gum, sweet gum, American beech, and white oak! Great weather but will be colder tomorrow.

This time of year some the trees look like lanterns in the mornings and evenings.

5pm EDT Oct 27th Key Messages for Category 5 #Hurricane #Melissa: #Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov

🍃 Functional traits best predict tree growth when age and leaf habit are considered–growth relationships shift over time and between deciduous and evergreen species🌿 @meganedeziel.bsky.social @alainpaquette.bsky.social Read more:https://buff.ly/2d9ppq9

A fabulous #postdoc opportunity to work with my colleague Nick Ward at PNNL on forest trace gas cycling, studying a poorly constrained component of the Earth system! Please share widely: careers.pnnl.gov/jobs/10985?l...

🪵 Diameter drives short-term biomass gains, but long-term carbon storage hinges on wood density, especially in humid forests. To improve accuracy, biomass models should account for radial wood density variation and climate ☁️ 🔎 Find out more: buff.ly/kZFoh9B

www.nature.com/articles/s41...

We are looking for a new postdoc to join a collaborative team at Indiana University. We are working to reduce bias in estimates of forest carbon uptake at local to global scales. Deadline for best consideration is November 15, 2025. More details below! indiana.peopleadmin.com/postings/30636

Here is a look of #Helene and the Predecessor Rainfall Event, which began setting up around this time a year ago. I updated this to incorporate the @nws.noaa.gov flash flood warnings and flash flood emergencies. #FLwx #GAwx #ALwx #SCwx #NCwx #TNwx @spann.bsky.social @wxbrad.bsky.social

Here's a gofundme to help out Josh Bregy, who recently was fired from his tenure-track job at Clemson

You think you know oak trees by their bark? Here are two >200 year old bur oaks I sampled in Northern Wisconsin, a St Croix River flood plain/terrace.

We mourn the passing of our Editor-in-Chief Steve Long. His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..

🌳 New paper out from our lab 🌲 We looked at how different harvest intensities and types influence timber production, carbon storage, tree biodiversity, and species composition in northeastern Appalachia 🧪🌎🍁 Just-In at CJFR 👇 doi.org/10.1139/cjfr...

Hey, I’m writing a book and it’s got a cover

🌳 New Tansley Insight! What really limits tree growth—carbon source or sink? 🤔 I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍 🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516

New research just dropped! Revisiting Paradigms Related to Root Hydraulic Limitation Under Drought is now available—challenging classic hydraulic-fuse models and outdated assumptions about root embolism, xylem safety-efficiency trade-offs, and ABA signalling. doi.org/10.1007/124_...

We did our annual pilgrimage to a local apple orchard and they were loaded this year! Probably the most I’ve seen in the 12ish years we’ve been doing this. Tasty as always!

The first chapter of my dissertation is out in Ecology Letters! We pooled data from forest sites across the globe to understand how forests differ in their carbon investment in reproduction (flowers, fruits, seeds). #ForestEcology #GlobalEcology onlinelibrary.wiley.com/doi/full/10....

📢 Paper alert! 🌲 How do disturbances affect species and structural diversity in European forests? Are disturbed forests more sensitive to subsequent disturbances? Read our new paper, led by #NikoKulha and with @gkunstler.bsky.social, @mikkopel.bsky.social, to find out more! doi.org/10.1111/geb....

What drives photosynthesis temperature sensitivity? New #GCB paper from #MichaletzLab grad #JosefGaren uses #FAsTeR to show it's 1‑day weather, not traits, origin climate, or phylogeny! www.researchgate.net/publication/... @ubcbiodiversity.bsky.social @science.ubc.ca @globalchangebio.bsky.social

I like big trees and I cannot lie. Great bit of work by @kimcalders.bsky.social @louiseterryn.bsky.social and colleagues using innovative climbing and scanning approach. Stunning illustration of tree structural and biodiversity complexity zslpublications.onlinelibrary.wiley.com/doi/full/10....

August views from the yard were dominated by false sunflower but ironweed, black eyed Susan, and tall coreopsis are in the mix.

🌲 What if a terrestrial laser scanner cost ~€2k, and still delivered reliable forest data? We built one. And it works. → DBH accuracy ~1.5 cm → Tree height ~1 m → Open hardware + open software Accessible 3D forest monitoring Wherever you are, get in touch 🌍 Preprint: bit.ly/3HneatY #LiDAR

Today's sample is just... perfect! 🌲💍😍 Can't wait to find out which part of the Holocene it belongs to! 🧊⏳ #subfossil #glacier #Alps

#Tree stems accumulate biomass by adding volume of certain density. Which factor is more important? Using tropical #treering data we found: diameter increment explains biomass growth at short term; wood density at long term.🌎🌐🍁 #dendrochronology besjournals.onlinelibrary.wiley.com/doi/10.1111/...

New research led by Kay Sung explores 1,250 years of precipitation trends across U.S. watersheds. Using tree rings, climate model output, & non-stationary SPI, we show how climate change is shaping seasonal rainfall. iopscience.iop.org/article/10.1... #ClimateChange #Hydrology #WaterManagement

It’s ironweed season, love the color of purple flowers but this cluster in my front year are the size of a small tree!

A big congratulations to William Farhan-Rios on this paper in @pnas.org, featuring a study of tropical-forest change over four decades along the Amazon-to-Andes elevational gradient in Bolivia and Peru 🌴 ⛰️ 🌐 @mobotgarden.bsky.social @livingearthcollab.bsky.social 1/3 www.pnas.org/doi/10.1073/...

Our new #review out on Impact of emerging #compound #droughts on #forests🌲🌳: A water supply and demand perspective #PlantBiology onlinelibrary.wiley.com/doi/10.1111/... @charlottegrossiord.bsky.social @simonhaber.bsky.social @vallicrosah.bsky.social @ecosense-sfb-1537.bsky.social 🧪

The only visually overwhelming flag that is also a 10/10 state flag

Really excited to share our new paper on #causalinference & #climatechange attribution out in #EcologyLetters today! Are you asking "how much" or "if" climate change has impacted your system, then this paper is for you! 🧪🌏🌐🍁🌺🌱🌿 onlinelibrary.wiley.com/doi/10.1111/...

🌳🔥Out now: Our review on compound droughts and forest responses - from leaf to ecosystem. Featuring a stunning 20-yr map of canopy temperatures variation across European forests. @chriswernerlab.bsky.social @simonhaber.bsky.social @vallicrosah.bsky.social onlinelibrary.wiley.com/doi/10.1111/...

"At the Hubbard Brook Experimental Forest, a northern hardwood forest site in the U.S. National Science Foundation Long-Term Ecological Research network, decades of environmental data collection provide context for assessing possible changes in the trajectory of soil respiration." 🧪

The western North American forestland carbon sink: will our climate commitments go up in smoke? esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Happy to share a new lab @newphyt.bsky.social paper, Fangyue Zhang et al., "Temporal repackaging of rainfall magnifies negative impacts of vapor pressure deficit on semiarid ecosystem productivity" @uarizona.bsky.social nph.onlinelibrary.wiley.com/share/KYZDXV...

🚨🚨 New tenure track position in #ConservationBiology @oberlincollege.bsky.social in the #Biology department--come join us, and contribute to our brand new Environmental Science major too! #biologyjobs #ecologyjobs jobs.oberlin.edu/postings/16671

Attention Climate Solutions Scholars! @uvic.ca seeks its next Canada Excellence Research Chair 🇨🇦: www.uvic.ca/research-inn... You: world class scholar, looking to make a move Us: #5 in world for climate action, collegial, stunning location (B.C.) w award-winning climate policy Pls share widely!

Slow-growing trees in arid environments live longer 🧪🌱