Brad Posch

PhD Position: Tree Physiological Responses to Atmospheric Drought We invite applications for a fully funded four-year PhD position at the École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, with a planned start date in June 2026. The selected candidate wil...

🌳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...

A conceptual framework describing how leaf carbon economics, drought, and heat tolerance are coordinated through the divergence of leaf habits of both evergreen and deciduous trees.

#Leaf economics links #drought and #heat tolerance across contrasting habitats

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
by Wang et al.

@WileyPlantSci #PlantScience

Venn diagram of major strategies used to cope with heat stress with examples of species expected to specialize in heat tolerance/acclimation (yellow circles), heat avoidance through drought-deciduousness (green circles), and heat avoidance through homeothermic leaf cooling (blue circles).

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

Extreme Heat: extending the thermal limits of life

Save the date! 47th New Phytologist Symposium on 'Extreme Heat: extending the thermal limits of life'. Explore how extreme heat affects plants that underpin ecosystem productivity.
2-5 June 2026, Cordoba, Spain.
@newphyt.bsky.social

www.newphytologist.org/events/47-nps

Check out our new Tansley Review on leaf heat acclimation in @newphyt.bsky.social, the result of a great collaboration with an even greater team! @martijnslot.bsky.social @seanmichaletz.bsky.social @nicolebison.bsky.social @luiza-aparecido.bsky.social @owenatkin.bsky.social @hultinelab.bsky.social

🌿 Join us at #EGU26 for session BG3.37 – Impacts of climatic extremes on plants & ecosystems! 🔥
We welcome studies on heat, drought & variability from leaf to landscape 🌍
Submit your abstract 👉 meetingorganizer.copernicus.org/EGU26/sessio... @kateplantphys.bsky.social @alyssakullberg.bsky.social

Hi All!
I'm back from sabbatical and teaching Plant Ecophys again - a class near and dear to my heart! In the past, I've welcomed grad students and post-docs to share their research with students and their stories about how they got into the field.....

#PlantSciJobs

Submit an abstract to our #AGU2025 session "Heat and Microclimate Impacts on Plant Functioning: From Molecules to the Biosphere" (agu.confex.com/agu/agu25/pr...) @nicolebison.bsky.social @luiza-aparecido.bsky.social @bposch.bsky.social @agu.org @agubiogeosciences.bsky.social @gec-agu.bsky.social

Heat waves are getting more dangerous with climate change — and we may still be underestimating them | CNN The intensifying and expansive heat wave affecting around 150 million people in the United States from Wisconsin to Washington, DC, bears the hallmarks of human-caused global warming.

"Heat waves are getting more dangerous with climate change — and we may still be underestimating them" | Nice piece by @afreedma.bsky.social for @cnn.com that references our recent @pnas.org article: edition.cnn.com/2025/06/23/c...

I think I'd be keeping our Licor 6800 away from these leaves... @li-corenv.bsky.social

Check out this recently published paper by Seeley et al. in the Journal of Ecology illustrating how remote sensing reveals inter- and intraspecific variation in riparian cottonwood (Populus spp) responses to drought.
The paper can be found at: besjournals.onlinelibrary.wiley.com/doi/abs/10.1...

Desert Botanical Garden - SCIENTIFIC ILLUSTRATION INTERN    Funding will support 20hrs/week for 4 months. The time frame may be flexible. DescriptionTo assist Garden Researchers’ research taxonomic treatments by providing scientific illu...

🚨Job Alert 🚨

The Desert Botanical Garden is hiring a Scientific Illustrations Intern 🌵✏️

Get your portfolio together and submit your application here: recruiting.paylocity.com/Recruiting/J...

#ConservationJobs #BotanicalIllustration #Hiring

New paper published by Wilder et al. in the journal Global Change Biology reveals how recent anomalous drought and heat events are impacting native succulents in the Sonoran Desert. The paper can be accessed at: onlinelibrary.wiley.com/doi/10.1111/...

Shades of Mike Lindell

THE NEW YORK KNICKS

Making the most of sunshine Photosynthesis Research at the Lancaster Environment Centre

Just over a week left to apply for a 3yr postdoc with me at Lancaster @lancasterplantbio.bsky.social looking at Rubisco engineering in vitro and in vivo to improve plant #photosynthesis #plantscijobs wp.lancs.ac.uk/lancsphotosy...

Leaf drought and heat tolerance are integrated across three temperate biome types - Scientific Reports Scientific Reports - Leaf drought and heat tolerance are integrated across three temperate biome types

Leaf drought and heat tolerance are integrated across three temperate biome types

I am very happy to see our paper out! Plant responses to many stresses are mediated by the same processes and I have long wondered how this relates to hotter droughts.

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

This post is now online, for full details on how to apply please see: wp.lancs.ac.uk/lancsphotosy...

Excited to share that I'll soon be recruiting a 3 year postdoc to join the lab @lancasterplantbio.bsky.social to work with me on Rubisco biochemistry and engineering. Official advertising details to be released very soon, watch this space! Please spread the word. 😀🌱🧪🥼

Fully funded PhD in Plant Ecophysiology at UBC in Vancouver 🍁! Possible topics include leaf physiology, thermal ecology, microclimates, scaling, tree physiology, forest ecology & more. Start Jan/May/Sept 2026. michaletzlab.org
Please share!
#PlantEcoPhys #Ecology #Botany #PhDposition #GradSchool

A saguaro cactus standing over 20 feet tall, with over ten arms, some of them over 10 feet long and jutting out in all kinds of directions

Has to be up there as one of my favourite saguaros in the valley 🌵

#arizona #cacti #botany

Need a Monday pick-me-up?

Here's a throwback to 2022, when our field ecology program director Susan Bush had an extraordinary encounter with a huge band of coatimundis while working at our field site in Wet Beaver Creek, AZ

How many can you spot??

#coati #ecology #fieldwork #arizona

Mapping the roots of saguaros at Saguaro NP. The DBG is partnering with SNP and the U of Wyoming to map the roots of saguaros. Knowing the distribution of saguaro roots reveals how sensitive they are to droughts, and to what extent these iconic plants engineer the water cycle of desert ecosystems.

Amazing 👏

YouTube video by Just A Account It Makes No Difference - The Band - The Last Waltz

Might listen to this saxophone solo on an endless loop today.

Rest in Peace and eternal gratitude to Garth Hudson, an actual musical genius and the last surviving member of the Band.

“Garth made us sound like we did.”
youtu.be/Q7yOGAmItFY?...

David Lynch gave us the language we needed to better articulate the indescribable strangeness of our shared reality. “Lynchian” is so overused because it’s a viscerally understandable word without any known synonyms. I can’t imagine a more beautiful artistic legacy than that.

Detailed representation of H2O gas exchange (left) and CO2 gas exchange (right) at the adaxial (upper) and abaxial (lower) leaf surfaces in an amphistomatous leaf. This panel illustrates the separate gas exchange processes for each leaf surface, which can be measured individually if the upper and lower cuvettes are analysed separately—though this setup is not common in commercial gas exchange systems. Stomatal, cuticle, and boundary layer resistances are depicted for both surfaces, along with the mole fractions of water vapour and CO2.

Excited to share our paper with Anna Gardner and @florianabusch.bsky.social in Plant Ecophysiology!🌿

We review challenges in interpreting plant stress responses using gas exchange data, offer solutions to improve accuracy and discuss gaps in our current knowledge.

www.sciltp.com/journals/Pla...

Enjoyed chatting about our recent work on leaf cooling during extreme heat! If the clip has you curious, you can find the paper here www.pnas.org/doi/10.1073/...

original poster for John Carpenter's The Thing

Would also submit this for consideration!