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Kali Middleby

@kalimiddleby.bsky.social
1.5K followers 296 following 34 posts

Postdoc at AMAPlab, Montpellier. Interested in forest ecology, plant physiology, heat stress, and rainforest conservation 🌿

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Kali Middleby @kalimiddleby.bsky.social · 16/05/2026
Just out! @awcheesman.bsky.social et al show VPD and CO2 affect the thermal sensitivity of stomatal function in tropical trees, we demonstrate how the model parameter g1 increases with temperature and how accounting for this can improve predictions of stomatal conductance doi.org/10.1111/nph....
doi.org
Influence of vapour pressure deficit and CO2 on the thermal sensitivity of stomatal function in tropical trees
Examining the potential thermal sensitivity of the model parameter g1 when accounting for the additive nature of underlying components including CO2 compensation point (Г*) and the marginal water cos...
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Kate Johnson @kateplantphys.bsky.social · 06/02/2026
🍃Notice the plants around you🍃 Create an artwork on how plants change🍂🌡️❄️👨‍👩‍👧‍👦 & submit to #sciart competition- FLOh!RA lstewart22.github.io/FLOhRA/ Opening today, closing April 6th For people living in Catalunya Please share! Funded by @ec.europa.eu @horizoneu.bsky.social Supported by @creaf.cat
Logo for the art-science competition described in the post above. The word ‘FLOh!RA’ is written on top of a beige rectangular panel which has rounded ends and is thinly outlined in orange. The letters: F, L, R and A are in light purple text, while ‘Oh!’ is in orange text, making it stand out. Behind the logo on top of a beige background are stylised depictions of flowers and leaves in golden-yellow across three square panels, in a style reminiscent of art- nouveau. This graphic was created by the CREAF communications team.
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Kali Middleby @kalimiddleby.bsky.social · 09/01/2026
Don't forget - deadline for abstract submission to #EGU2026 is the 15th of January. If your work focuses on #microclimate or #heatstress in plants submit to our session BG3.41 "Microclimate Variation and Heat Impacts on Vegetation: From Molecules to the Biosphere" www.egu26.eu/session/57401
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Arthur Gessler @arthurobuntspecht.bsky.social · 04/12/2025
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...
nature.com
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
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Kali Middleby @kalimiddleby.bsky.social · 27/11/2025
Where we collect seed for restoration matters. In a new paper led by Jayden Engert, we examined where nurseries source seed for rainforest plantings and discuss what that means for restoration success. www.sciencedirect.com/science/arti...
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Kali Middleby @kalimiddleby.bsky.social · 21/11/2025
academic.oup.com/treephys/art...
academic.oup.com
Acclimation of mango (Mangifera indica cv. Calypso) to canopy light gradients—scaling from leaf to canopy
Abstract. Mango (Mangifera indica L.), a leading tropical fruit crop, is a prime candidate for intensification through modern orchard-management techniques
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Sean Michaletz @seanmichaletz.bsky.social · 03/11/2025
Submit an abstract to our #EGU2026 session "Microclimate Variation and Heat Impacts on Vegetation: From Molecules to the Biosphere"(meetingorganizer.copernicus.org/EGU26/sessio...) @kalimiddleby.bsky.social @santiagotrueba.bsky.social @sonyageange.bsky.social @egu.eu @egubg.bsky.social @hs.egu.eu
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The Conversation AUNZ @aunz.theconversation.com · 05/09/2025
In full sun, tropical leaves can become much hotter than the surrounding air. Their ability to cope can be a matter of life or death. 👉 Read the full story: theconversation.com/some-tr...
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Reposted by Kali Middleby
James Cook University @jcuofficial.bsky.social · 05/09/2025
New research reveals some rainforest tree species use self-cooling strategies to withstand rising temperatures, but others are more at risk. Full story: shorturl.at/piQ5B
shorturl.at
Some Rainforest Trees Can Beat the Heat
New research reveals some rainforest tree species use self-cooling strategies to withstand rising temperatures, but others are more at risk.
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Kali Middleby @kalimiddleby.bsky.social · 04/09/2025
Featured on the cover of @globalchangebio.bsky.social is a thermal image of Elaeocarpus Grandis taken at @jcuofficial.bsky.social Daintree Rainforest Observatory. In this species we find that populations originating from warmer climates have narrower leaves with higher rates of water loss.
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Kali Middleby @kalimiddleby.bsky.social · 04/09/2025
Check out our piece in @theconversation.com explaining how intraspecific trait coordination across climatic gradients helps to avoid heat stress in some (but not all) tropical tree species theconversation.com/some-tropica...
theconversation.com
Some tropical trees cool their leaves to survive the heat — but not all species have ways to cope
In full sun, tropical leaves can become much hotter than the surrounding air. Their ability to cope can be a matter of life or death.
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Kali Middleby @kalimiddleby.bsky.social · 04/09/2025
Can tropical rainforest trees keep their cool? Now out in @globalchangebio.bsky.social we explored whether intraspecific variation in leaf energy balance was a result of adaptation to local climate. doi.org/10.1111/gcb....
doi.org
Local Adaptation Drives Leaf Thermoregulation in Tropical Rainforest Trees
We tested whether tropical rainforest trees adjust their leaf traits and resulting leaf temperatures across their distributions within the Australian Wet Tropics. Using field measurements from across...
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Kali Middleby @kalimiddleby.bsky.social · 14/08/2025
What a wonderful time sharing ideas with fellow plant nerds 💚
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Kali Middleby @kalimiddleby.bsky.social · 26/06/2025
Heading to Oaxaca for #ATBC2025 ? Make sure you stop by our symposium for all things leaf temperature, heat tolerance, and tradeoffs across climate gradients 🌿💧🌡️
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Lucas Cernusak @lucascernusak.bsky.social · 17/06/2025
I have an opportunity for a new PhD student in tropical tree ecophysiology in my lab. Some more details at the link below. Please pass along! www.findaphd.com/phds/project...
findaphd.com
Responses of tropical forest trees to rising carbon dioxide - conifers versus angiosperms at James Cook University on FindAPhD.com
PhD Project - Responses of tropical forest trees to rising carbon dioxide - conifers versus angiosperms at James Cook University, listed on FindAPhD.com
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Kali Middleby @kalimiddleby.bsky.social · 13/06/2025
Proud to have my thermal image on the cover of this fantastic issue - now time to check out the research inside!
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UMR AMAP @umramap.bsky.social · 14/04/2025
#AMAPwebinar april 29th, 11:00 (CET) Kali Middeby, post-doc, AMAPlab, Montpellier "Patterns and drivers of leaf thermoregulation in rainforest trees of the Australian Wet Tropics" amap.cirad.fr/fr/edit-even...
amap.cirad.fr
UMR AMAP - botAnique et Modélisation de l'Architecture des Plantes et des végétations
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Paulo Menezes-Silva @pmenezes-silva.bsky.social · 11/02/2025
🔥Can heatwaves leave a thermal leaky legacy?🔥 Check out our latest paper on gmin dynamics during and after thermal stress🍃📄 Extremely proud of my student Viviane! Special thanks to @hcochard.bsky.social @torresruizjm.bsky.social @martijnslot.bsky.social doi.org/10.1093/plph...
doi.org
Leaf minimum conductance dynamics during and after heat stress: Implications for plant survival under hotter droughts
Temperatures above a critical threshold can increase leaf minimum conductance after cooling, evidencing a “thermal leaky legacy effect” that can reduce pla
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Bill Smith @wkolby.bsky.social · 27/01/2025
Happy to share a new paper, "Effects of Hot Versus Dry Vapor Pressure Deficit on Ecosystem Carbon and Water Fluxes," led by the amazing Miriam Johnston w/ @mallorybarnes.bsky.social and others agupubs.onlinelibrary.wiley.com/doi/10.1029/...
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Kali Middleby @kalimiddleby.bsky.social · 15/01/2025
Check out our new article just out in The Conversation highlighting the effects of warming leaves +4°C in tropical trees. 🌿🌡️ theconversation.com/study-shows-...
theconversation.com
Study shows hot leaves can’t catch carbon from the air. It’s bad news for rainforests – and Earth
An experiment in the Daintree rainforest found the rate of photosynthesis in leaves warmed by 4°C dropped by an average of 35% compared to non-warmed controls.
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Kali Middleby @kalimiddleby.bsky.social · 08/12/2024
How do tropical rainforest trees respond to warming? 🌡️🌿We experimentally warmed canopy leaves by 4°C for 8 months and found significant declines in photosynthesis and stomatal conductance, with no shift in Topt. Read the new paper, led by Kristine Crous here: shorturl.at/AVTOk
Surrounded by lush vegetation in a tropical forest canopy, three take-away containers have been customised to warm leaves continuouslyA density plot shows the distribution of observed leaf temperatures for one example species - Myristica globosa. The graph shows that warmed leaves surpass their optimum temperature far more frequently than control leaves, and are close to their critical temperature threshold
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Kali Middleby @kalimiddleby.bsky.social · 06/12/2024
Time to introduce myself! Recently, I defended my thesis titled "Patterns and Drivers of Leaf Thermoregulation in Rainforest Trees of the Australian Wet Tropics" where I focused on the role of within-species acclimation and adaptation on leaf temperature. Here’s a little summary of what went on…
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Kali Middleby @kalimiddleby.bsky.social · 12/11/2024
Why am I a plant ecophysiologist? 7 years ago, I sat above the trees in a mature tropical rainforest and enter an entirely new world. Thanks to the Daintree Rainforest Observatory's canopy access crane. Now our much loved research station is under financial threat www.abc.net.au/news/2024-11...
abc.net.au
Rainforest research station and rare 47m-high canopy crane face closure
James Cook Univeristy says its Daintree Rainforest research station is "severely under-utilised", even though the canopy crane is one of only six in the tropics worldwide.
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