We hope this database catalyzes research on heat tolerances! Read the full paper here: onlinelibrary.wiley.com/doi/10.1002/... Thanks @ecol-evol.bsky.social! Download and upload your own data here: tmoreperez.github.io/heat-toleran...

New publication in @biotropica.bsky.social with former lab members @juan-camilo-mejia.bsky.social and Roxana: onlinelibrary.wiley.com/doi/epdf/10.... We found that net photosynthesis and Vcmax were lower at midday than in the morning, but no evidence of significant changes in leaf heat tolerance

Does branch excision bias our #photosynthesis data? New paper led by #MarcellaCross shows excision increases water potential but reduces photosynthesis in most species, with trait-dependent effects, so excised branches underestimate intact rates. www.researchgate.net/publication/... #MichaletzLab

Black locust is a very successful tree in our human-dominated world. It is spectacular in flower and produces exceptionally fine honey. Learn more about this amazing tree at Our Trees.

Good morning

huge if true

Episode #237: The Energy Crisis The energy crisis generated by the war in Iran has some historical parallels, including the Suez crisis of 1956 and the Arab-Israeli war in 1973. @adamtooze.bsky.social and Cameron Abadi discuss the similarities and differences: podcasts.apple.com/us/podcast/t...

Què és una “embòlia” vegetal i per què són tan perilloses pels arbres🌳 mediterranis? En situacions de #sequera🌡️, quan falta aigua al sòl, es poden formar bombolles d’aire🫧 (“embòlies”) als conductes transportadors d’aigua💦 de les plantes, una conseqüència que pot ser fatal.

“This is going to be the new normal for Western Canada, so even though this heat dome happened five years ago, I think these results we had in this paper are more relevant than ever,” said UBC botanist Dr. Sean Michaletz. @ubcbotany.bsky.social @seanmichaletz.bsky.social bit.ly/4m2PDKx

Really nice to see all the fresh snow we've gotten in the past week. More will come, hopefully..

Da Vinci’s mischief: xylem conduits in the stems of woody plants do not furcate Alemán-Sancheschúlz et al. nph.onlinelibrary.wiley.com/doi/10.1111/...

This is SO cool, I'd love to play around with one of these Optical Dendrometers at some point..

New paper alert! The 2021 western North American #heatwave had widespread but variable impacts across species & ecosystems, with cascading effects on #productivity, #streamflow, & #wildfire. @baumlab.bsky.social @katiegwin.bsky.social @coleburton.bsky.social @srivastavalab.bsky.social bit.ly/3NnoEfA

“The heatwave had widespread ecological effects, including an almost 400% increase in wildfire activity & negatively affecting more than three-quarters of the species studied,” said UBC zoologist Dr. Diane Srivastava. @zoology.ubc.ca @srivastavalab.bsky.social www.ctvnews.ca/climate-and-...

🌿Great journals are shaped by thoughtful editors. Juliana Medeiros @heyrhododendron.bsky.social brings a passion for rigorous science, inclusive editing, and strong scientific storytelling to AoB PLANTS. Get to know her in our latest #MeetTheEditor feature 👇 #PlantScience #AoBPLANTS

So excited to have been accepted to write this piece. Thanks to all who have entertained my ramblings over the years and have encouraged me in my passion for #ecophysiology and #evolution 🙏 #IAmABotanist 🌱

Paid Summer Internships... Join us for a summer of ecological research at the Holden Arboretum. Opportunities in restoration ecology, population ecology, plant ecophysiology, forest health, and more. On-site housing available at low cost. lnkd.in/gjWUznhj

Some history from a historian.

Here is a working Starter Pack for Plant Ecophysiologists! Please let us know if you want to be added to this list in a comment or DM. #botany #plantecophys #PhysFam go.bsky.app/Pbq39H7

We’re advertising a fully funded 4-year PhD position on modelling firn changes at the glacier scale within the SNF-funded deFIRN project, based at ETH Zurich & WSL. Apply here: jobs.ethz.ch/job/view/JOP... @wslresearch.bsky.social @slfdavos.bsky.social

🍁Funding for new PhD students ($40k/yr) & postdocs ($70k/yr) coming from outside Canada. Contact me if interested in #Ecophysiology at #UBC in #Vancouver! Possible topics: leaf physiology, thermal ecology, microclimate, scaling, tree physiology, forest ecology, more! michaletzlab.org Please share!

Perennial reminder of this excellent paper about how secret police forces are swamped with underachievers “We don’t want clever people. We want mediocrities.” (Ungated summary here ajps.org/2019/10/08/w...)

🌳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...

New postdoctoral fellowship opportunity! Please pass along. Excited to announce the launch of the Tom Lovejoy Fellowship Program at the University of Arizona for innovative research to protect species, sustain ecosystems, and promote a thriving planet lovejoycenter.arizona.edu/lovejoy-fell... 🧪🌐🌾

It is hard to overstate how critical @ncar-ucar.bsky.social is to climate science in the US and around the world. It's the beating heart of our field. Generations of scientists have trained there, and almost everyone I know relies on deep collaborations with NCAR scientists. It's end is unthinkable.

The Trump Administration's plan to dismantle the @ncar-ucar.bsky.social is senseless & dangerous. It would weaken weather forecasting, climate research, & the science that keeps people safe. We urge that this plan be abandoned. Call Congress to #SaveNCAR today. buff.ly/7ka1BQA

Check out our #MichaletzLab presentations at #AGU2025 this week! @agu.org @agubiogeosciences.bsky.social @gec-agu.bsky.social @nicolebison.bsky.social @milossimovic.bsky.social

🎄 ANNOUNCEMENT: R Package Development Advent Calendar 2025! 🎄 Starting December 1st, I'm launching a 25-day journey through modern R package development. here's why you should follow along 🧵 #rstats #RPackageAdvent2025 #OpenSource

Our department at UBC is hiring for a professor of forest ecophysiology, including "tree ecophysiology; plant abiotic or biotic stress physiology; forest mortality and climate change responses; forest carbon balance; tree water relations; or nutrient use." Learn more at: tinyurl.com/5da56f5c

Golden Ears is surely one of the prettiest mountains in SWBC.

This would be absolutely hilarious if it wasn't so frightening

We published this open letter on #UrbanForests as essential(!!) infrastructure for climate resilience & biodiversity aimed at policymakers at #COP30. 4🗝️priorities🧵👇 @plantspeopleplanet.bsky.social @fornalab.bsky.social @fbwugent.bsky.social @meisebotanicgarden.bsky.social @westsyduhie.bsky.social

Check out our new paper! @brodersenlab.bsky.social

🎴NEW PAPER!🎴 Majorities in 11 HICs support: ✅Foreign aid ✅Debt relief for low-income countries (LICs) ✅An international carbon price financing a worldwide basic income ✅An international 2% tax on wealth above $1 million with 30% funding LICs and much more. bsky.app/profile/wid.... A 🧵⬇️

I think about this post every day 🧪

The cover of @jxbotany.bsky.social is my painting of Tulip Poplar, a North-American native & global street tree that was the focus of our paper visualising freezing spread & freeze-thaw embolism in leaves! A lovely way to finish this multi-year mutli-country project 🔗below @brodersenlab.bsky.social

Mamdani: "We can respond to oligarchy and authoritarianism with the strength it fears, not the appeasement it craves. After all, if anyone can show a nation betrayed by Donald Trump how to defeat him, it is the city that gave rise to him."

Mamdani quotes Eugene V. Debs, who earns a roar of approval just at the mention of his name.

High #temperature acclimation of #photosystem II in land plants #TansleyReview by @bposch.bsky.social et al. nph.onlinelibrary.wiley.com/doi/10.1111/... @hultinelab.bsky.social #PlantScience #photosynthesis

Applications are now open for two two-year UBC Biodiversity Postdoc Fellowships biodiversity.ubc.ca/training-and.... $77,000 /y + benefits and $7000 /y research funds.

Join us on campus & online on Thursday, 30 October 2025 at 1pm for a seminar by Josef Garen, Postdoctoral Research Fellow at Hawkesbury Institute for the Environment, Western Sydney University. Details: rb.gy/2pdjbo

Please pass along, I’m recruiting PhD students to join our Macroecology Lab @uofa-eeb.bsky.social We study phys ecology, macroecology, biodiversity - spanning scaling, trait-based ecology, theory, comparative biology & ecoinformatics. Several avenues for funding. Please reach out if interested🧪🌐🌾

US Government accounts have arrived on Bluesky. Block on sight. Protect your digital space. Be aware that the DHS account in particular is known to quote dunk on regular people to encourage their followers to harass them. The detach quote function will come in very handy here…

WOW! Our survey of scientists who stopped using Twitter and started using Bluesky is now the #1 most-shared on social media article in the history of the journal Integrative and Comparative Biology! Thanks for reading it, everyone! @sicbjournals.bsky.social doi.org/10.1093/icb/... 🧪

are economic valuations of ecosystem services a slippery slope? or worse, a trick? here is a case study for pondering, told in a creative way by my colleague John Van Stan 🧪🍁🌐 doi.org/10.1093/bios...

This looks to be a fundamental theoretical advance by @jpodwyer.bsky.social et al. Using linkage disequlibrium-based Ne to back out σ² and then predict fluctuation sizes from a single temporal snapshot is a real advance for broad application 🧪🌐https://www.science.org/doi/10.1126/science.adu6396

The Agrawal lab is moving! This January we will be setting up shop at #UBC in Vancouver, in the department of #Zoology! We are actively recruiting at all levels, especially masters and PhD students. These position are #funded! Please send anyone interested my way!

Hi all! If you are a PhD or soon to be PhD looking for a postdoc in plant thermotolerance, I would love to discuss project ideas for the University of Utah Wilkes Center Postdoc Fellowship, app due late Jan 2026! Msg me if there is interest. Tnx! wilkescenter.utah.edu/funding-oppo...

An ancient yew tree in Scotland that is half the age of the Holocene has caught our attention. What a privilege to be in the presence of one of the oldest trees in Europe. @ymalhi.bsky.social explains the significance of this giant. @naturerecovery.bsky.social @ecioxford.bsky.social