Kali Middleby

@kalimiddleby.bsky.social

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

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...

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

nature.com

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

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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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...

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.

abc.net.au