47th New Phytologist symposium: Extreme Heat: extending the thermal limits of life Hosted by the University of Cordoba, Span, June 2026 Stay tuned for updates! www.newphytologist.org/symposia/47-...

Wondering where to submit your abstract for #AGU25 @agu.org annual meeting? Consider our cross-scale "Forest Physiological and Ecological Processes from Molecules to Ecosystems" organized session (#246685)! #EcoPhys

Heading to Oaxaca for #ATBC2025 ? Make sure you stop by our symposium for all things leaf temperature, heat tolerance, and tradeoffs across climate gradients 🌿💧🌡️

If you're doing research on the interaction between plants and high temperatures - anywhere from the molecular 🧬 to the biosphere scale 🌏 - consider submitting an abstract for our session at #AGU2025!! 🪴🌾

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

Establishment patterns of #saguaro #cactus at the microsite scale help explain saguaro regeneration & distributions in heterogenous, regional habitats New #AJB research by Peter Breslin, Charlotte Brown, Alberto Búrquez, Frank Reichenbacher et al. doi.org/10.1002/ajb2... #botany #plantscience

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...

What do monarchs, trout, bison, black bears & YOU have in common? You're all supported by the USGS Ecosystems Mission Area. Join our Rally for the Cornerstone of Conservation Science! May 22 | 12–1 PM ET Rally with us: www.mobilize.us/nwf/event/79... #ScienceForWildlife #ForPeopleAndWildlife

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/...

Registration now open for the 2nd International Virtual Cactaceae Symposium: August 25-27, 2025. www.ican-cactaceae.org/symposium

Resolution proposed by Indiana University and Rutgers University to establish a Big Ten mutual defense compact : www.idsnews.com/article/2025...

We had the pleasure of hosting Dr. Kevin Hultine (@hultinelab.bsky.social) for his 3rd visit to our lab at the U! Thanks Kevin for our your valuable contributions to our lab, especially mentoring my now PhD Candidate @rebeccasenft.bsky.social (uhul!), and expanding our riparian ecophys research!

Off and running: Lab member Madeline Moran passed her oral defense and has advanced to PhD candidacy! Stay tuned for future posts covering Madeline's research results on plant acclimation to heat exposure. Congrats Madeline!

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

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

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.

It's always a pleasure to host @owenatkin.bsky.social! We had some great discussions about our ongoing efforts to understand and address the threat that extreme heat poses for plants around the world 🌡️ 🌿

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/...

DPEL in the news! Check out Brad Posch discussing how cottonwood trees stay cool in the summer heat: www.12news.com/video/news/r...

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

Come and be my colleague in Panama! forestgeo.si.edu/forestgeo-st...

The US fish and Wildlife Service is listing the monarch butterfly as a threatened species. Great article of how the listing matters to Arizona and the southwestern US: www.azcentral.com/story/news/l...

Check out this recently published paper by PhD candidate Marilynn Vazquez-Cruz on the evolutionary origin and climate niche space of succulent plants: doi.org/10.1093/jxb/... #Botany #PlantScience

Huge congrats to @nicolebison.bsky.social for receiving a Best Presentation Award for her talk "The kinetic basis of photosynthetic heat tolerance" at the Australian Society of Plant Scientists Conference in Sydney, Australia! #ASPS2024 #MichaletzLab @ubcbotany.bsky.social @ubcscience.bsky.social

They say when life gives you lemons, make lemonade 🍋 Well when Phoenix gives you record heat, you study plant heat tolerance! This summer we used the natural heat to get our greenhouse up beyond 50°C (!) and studied how 8 dryland species responded - stay tuned for results! #Botany #PlantScience 🧪

They say when life gives you lemons, make lemonade 🍋 Well when Phoenix gives you record heat, you study plant heat tolerance! This summer we used the natural heat to get our greenhouse up beyond 50°C (!) and studied how 8 dryland species responded - stay tuned for results! #Botany #PlantScience 🧪

🚨 Paid research experience for undergrads! 🚨

 Apply now for undergrad research summer program in Dr. Luiza Aparecido’s plant ecophys lab @ U of Utah, studying plant heat tolerance across Utah (May 19-Aug 1, 2025) For more info contact [email protected]

#botany #PlantSciJobs

Phoenix summer temperatures shattered record highs in 2023 and 24. We are taking advantage of the high temps to evaluate thermal limits of heat-adapted plants. Stay tuned for future updates. #CllimateChange, #PlantScience

Check out this recent paper by Dr. Jaclyn Corbin et al. in Plant, Cell and Environment showing how leaf reflectance can predict interactive genetic and environmental effects on tree phenotypes: doi.org/10.1111/pce.... #OpenAccess #PlantBiology #Botany

All about saguaros. Lab manager Ali Schuessler presented to over 150 members of the Desert Foothills Land Trust in North Phoenix. Record temperatures in Phoenix have decimated thousands of saguaros and the public is taking notice. The DBG is researching strategies to protect saguaros. #Botany

Phoenix just experienced its hottest summer on record! Our lab focuses on studying plant ecophysiology traits that underlie adaptation to heat waves and drought in the Phoenix area, Sonoran Desert region, and drylands across the globe. Check out our web page at: dbg.org/research-con...

What sets succulent leaves apart from non-succulent leaves? A recent work in @annbot.bsky.social led by former lab PhD Dr. Giacomo Mozzi presents a structural leaf trait spectrum in succulent leaf taxa, and maps contrasts in leaf water storage vs. SLA doi.org/10.1093/aob/... #Botany #PlantScience

Still looking for applicants for two funded phd positions and a 2yr postdoc. Full ads: drewpeltier.com/opportunities 1) PhD position in climate adaptation science (SWCASC) 2) PhD position in memory effects in forest C cycle (NSF funded) 3) Postdoc position (2yr) in 14C/NSC

Check out our new paper in PNAS, where we examine how cottonwood trees responded to record-breaking Arizona heat! 🌳☀️💧 #OpenAccess #PlantBiology #ClimateChange #Botany 🧪🌾🌱

New paper alert! GPP in a juniper woodland constrained by plant water status. #waterpotential #stempsychrometry #eddycovariance nph.onlinelibrary.wiley.com/share/AEDQ6K...

Aphyllon cooperi (burrowed strangler) in the Orobanchaceae came up in large numbers after three+ years of severe drought. Its host Ambrosia dumosa experienced large scale die off during the mega drought but its now rebounding. How wonderful to see this parasitic plant going full force this year!

I have a commentary in Nature on our disquieting inability to work out why 2023 was so warm. www.nature.com/articles/d41...

For your Things That Used to Be Worse and Got Better files: Much of the Eastern U.S. was deforested in the 18th & 19th centuries. European settlers cut down every tree they could reach. Now forests have regrown and eased global warming 🧪 www.scientificamerican.com/article/succ...

Leaf day respiration involves multiple carbon sources and depends on previous dark metabolism

Welcome to our newest lab arrivals - 20 young saguaro #cacti!   We're planting these saguaros in our #cactus common garden here at the Desert Botanical Garden, where they will help us study the response of cacti to changing soil water availability 🌵💧 #Botany #PlantScience 🌾🧪🌎