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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Jul 23

Our new study from RWANDA TREE shows that:
Species with big leaves & low stomatal conductance tolerate more heat, but with tighter safety margins.
Heat tolerance acclimates,but partially:+0.31°C per +1°C Tgrowth
Leaf temperature matters more than heat tolerance for survival. doi.org/10.1111/pce....

Photosynthetic Heat Tolerance Partially Acclimates to Growth Temperature in Tropical Montane Tree Species

Climate warming poses a risk to tropical montane trees by narrowing their thermal safety margins, particularly in species with traits that lead to higher leaf temperatures. While photosynthetic heat ...

doi.org

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Reposted by Dr Olivier Jean Leonce Manzi

Margaret Evans @mekevans.bsky.social · Jun 12

New in @sciencemagazine, a review on Scaling plant responses to heat (www.science.org/doi/10.1126/...). Increased temperature along with acute heat waves threaten the ability of terrestrial vegetation to act as a carbon sink, but predicting how plants will respond to heat is challenging.

Scaling plant responses to heat: From molecules to the biosphere

Predicting plant responses to rising temperatures, including acute heat waves and hot droughts of varying intensity and duration, is central to addressing the climate and biodiversity crises. However,...

www.science.org

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Reposted by Dr Olivier Jean Leonce Manzi

ForestPlots @forestplots.bsky.social · May 16

Job Opportunity: Lecturer in Ecology and Global Change at University of Leeds.
We welcome dynamic applicants from across the world to join our team of tropical ecology and global change scientists.
jobs.leeds.ac.uk/Vacancy.aspx...

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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · May 14

Coming back from the field in Gabon where we are measuring trees to know how much carbon is stored in the Congo basin forests #CongoFor1.5 project

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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Jan 10

On Friday (17/01/2025) at 10:00 AM Swedish time,I will defend my doctoral thesis, "Heat and drought responses of tropical trees in a warming world
( gupea.ub.gu.se/handle/2077/84…" The opponent is Prof Emanuel Gloor https://gu-se.zoom.us/j/65080289605?pwd=hjt3BmHE6Hi8Jl3vlz8gwUZkUrM5St.1

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Reposted by Dr Olivier Jean Leonce Manzi

Martijn Slot @martijnslot.bsky.social · Dec 17

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

ForestGEO Staff Scientist - Research Ecologist, South & Central American Tropical Forests

The Forest Global Earth Observatory (ForestGEO) is a global network of forest research plots and scientists dedicated to the study of forest function and diversity.

forestgeo.si.edu

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Reposted by Dr Olivier Jean Leonce Manzi

Louis Schipper @louisschipper.bsky.social · Dec 12

Excited about our new paper asking: Why does the growth of most life have an optimal temperature below 40°C? We argue the average maximum oceanic temperatures of <37°C for 2+ billion years drove evolution of the temperature optima of prokaryotes. 1/5
onlinelibrary.wiley.com/doi/10.1002/...

Earth's Climate History Explains Life's Temperature Optima

We propose that the origin of the temperature optima of life results from two discrete evolutionary selection pressures that constrained the evolution of fundamental biochemistry and growth of most l...

onlinelibrary.wiley.com

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Reposted by Dr Olivier Jean Leonce Manzi

Kali Middleby @kalimiddleby.bsky.social · Dec 8

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 continuously

A 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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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Dec 6

Congs Kali

Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Dec 6

Thanks Kali Middleby

Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Dec 5

So happy that my thesis is now printed! Looking forward to what the future holds for me 🙌

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Reposted by Dr Olivier Jean Leonce Manzi

Martijn Slot @martijnslot.bsky.social · Nov 18

I apologize that my first post on this platform is an attempt at crowdsourcing library access: Does anybody have access to this paper?
Owens, J.N., 1995. Constraints to seed production: temperate and tropical forest trees. Tree Physiology 15,477-484.

My email address is: slotm[at]si[dot]edu
Thanks!

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Reposted by Dr Olivier Jean Leonce Manzi

Martijn Slot @martijnslot.bsky.social · Nov 22

The chapter I contributed is about temperature effects on the trees of BCI. The electronic book should be downloadable, but let me know if you want a copy of my chapter.
(2/2)

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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Nov 21

Feel free to add me

Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Nov 17

Join the new GCBC project on biodiversity and tropical peatlands. We're hiring:

1. Full-time Post-Doctoral Research Associate careers.kew.org/vacancy/post...

2. Part-Time Project Manager careers.kew.org/vacancy/proj...

https://careers.kew.org/vacancy/postdo…

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Reposted by Dr Olivier Jean Leonce Manzi

New Phytologist @newphyt.bsky.social · Nov 15

We are delighted to announce that Maarja Öpik will be New Phytologist's next Editor-in-Chief.

Maarja will take up the position from January 2025, for an initial term of five years.

www.newphytologist.org/news/view/354

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Reposted by Dr Olivier Jean Leonce Manzi

Andreas P.M. Weber 🌾🌱🧬 @apmweber.bsky.social · Nov 14

Do stomata respond directly to temperature or only to a temperature-induced change in the water vapour pressure gradient? @tombuckleylab.bsky.social reviews what is known about this. #PlantScience

Tom Buckley @tombuckleylab.bsky.social · Nov 14

Our review of the direct response of stomata to temperature just came out in an issue (OK, it was 3 months ago but I just noticed).

We cover what (little) is known, & possible mechanisms and implications.

Several more papers in the works. Watch this space!

onlinelibrary.wiley.com/doi/abs/10.1...

The poorly‐explored stomatal response to temperature at constant evaporative demand

The direct response of stomata to temperature (the response when evaporative demand is held constant by adjusting ambient humidity) is very poorly known. This review summarises the current state of k...

onlinelibrary.wiley.com

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Reposted by Dr Olivier Jean Leonce Manzi

Simon Lewis @simonlewis.bsky.social · Nov 13

Great piece on how disruptions to commodity production drive increased profits + inflation, + how to stabilize prices. https://www.nytimes.com/2024/11/12/opinion/election-inflation-cost-shock.html?smid=nytcore-ios-share&referringSource=articleShare&ngrp=mnp&pvid=E7EBEA26-906B-4153-A0FC-8A8EEA65FCFF

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Reposted by Dr Olivier Jean Leonce Manzi

Jim Dalling @dallingjim.bsky.social · Nov 7

🧪 Happy to share a link to our Tansley Review on wood nutrients: underexplored functional traits. nph.onlinelibrary.wiley.com/doi/epdf/10.... We highlight the enormous variation in wood nutrient concentrations among species, links to masting, resprouting and ecosystem carbon via decomposition.

Sapwood phosphorus concentrations for temperate, subtropical and tropical trees

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Reposted by Dr Olivier Jean Leonce Manzi

Charles Melnyk @charlesmelnyk.bsky.social · Nov 12

A Senior Lecturer/Associate Professor position is available in the Plant Biology Department at SLU, related to how plants grow, develop & interact with their environment. Come join us in a welcoming and dynamic department in Uppsala, Sweden! More info below:
www.slu.se/en/about-slu...

Jobs and vacancies at SLU. | slu.se

Jobs and vacancies at SLU. Read more about each job by clicking the job title. Please, follow the instructions closely when applying.

www.slu.se

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Reposted by Dr Olivier Jean Leonce Manzi

Dryland Plant Ecophysiology Lab @hultinelab.bsky.social · Nov 13

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...

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Reposted by Dr Olivier Jean Leonce Manzi

Tom Kimmerer, PhD @tomkimmerer.bsky.social · Nov 13

Amber, fossil conifer resin, is now known from every continent including Antarctica. Trees and forests have been migrating throughout the Earth for all of their existence. But now, rapid climate change exceeds the ability of trees to migrate and survive. The only solution is to end fossil fuel use.

First discovery of Antarctic amber | Antarctic Science | Cambridge Core

First discovery of Antarctic amber

www.cambridge.org

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Reposted by Dr Olivier Jean Leonce Manzi

Arthur Gessler @arthurobuntspecht.bsky.social · Nov 12

Linking source-sink relationships and phenology: Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

Read the free Plain Language Summary for this article on the Journal blog.

besjournals.onlinelibrary.wiley.com

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Reposted by Dr Olivier Jean Leonce Manzi

Chenxin Li, PhD @chenxinli2.bsky.social · Nov 12

Reminder: 1) there is no algorithm on here, if you found something interesting, make sure to repost, not just like. 2) repost your own post after 8 hrs so that people from different time zones can see.

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Dr Olivier Jean Leonce Manzi @olivierjlmanzi.bsky.social · Nov 12

Canopy temperatures strongly overestimate leaf thermal safety margins of tropical trees - Manzi - 2024 - @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...

Canopy temperatures strongly overestimate leaf thermal safety margins of tropical trees

Current estimates of temperature effects on plants mostly rely on air temperature, although it can significantly deviate from leaf temperature (Tleaf). To address this, some studies have used cano...

nph.onlinelibrary.wiley.com

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