Dr Olivier Jean Leonce Manzi
@olivierjlmanzi.bsky.social
Postdoctoral researcher interested in heat and drought responses of tropical trees. Currently working as a research fellow in African forest measurement at the University of Leeds.
Pinned
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
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....
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....
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....
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
July 23, 2025 at 1:27 PM
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....
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....
Reposted by Dr Olivier Jean Leonce Manzi
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
June 12, 2025 at 10:37 PM
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.
Reposted by Dr Olivier Jean Leonce Manzi
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...
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...
May 16, 2025 at 8:04 AM
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...
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...
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
May 14, 2025 at 4:09 PM
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
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
( gupea.ub.gu.se/handle/2077/84…" The opponent is Prof Emanuel Gloor https://gu-se.zoom.us/j/65080289605?pwd=hjt3BmHE6Hi8Jl3vlz8gwUZkUrM5St.1
January 10, 2025 at 3:19 PM
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
( gupea.ub.gu.se/handle/2077/84…" The opponent is Prof Emanuel Gloor https://gu-se.zoom.us/j/65080289605?pwd=hjt3BmHE6Hi8Jl3vlz8gwUZkUrM5St.1
Reposted by Dr Olivier Jean Leonce Manzi
Come and be my colleague in Panama!
forestgeo.si.edu/forestgeo-st...
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
December 17, 2024 at 2:43 PM
Come and be my colleague in Panama!
forestgeo.si.edu/forestgeo-st...
forestgeo.si.edu/forestgeo-st...
Reposted by Dr Olivier Jean Leonce Manzi
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/...
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
December 12, 2024 at 10:55 AM
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/...
onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Dr Olivier Jean Leonce Manzi
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
December 8, 2024 at 2:17 AM
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
So happy that my thesis is now printed! Looking forward to what the future holds for me 🙌
December 5, 2024 at 7:25 PM
So happy that my thesis is now printed! Looking forward to what the future holds for me 🙌
Reposted by Dr Olivier Jean Leonce Manzi
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!
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!
November 18, 2024 at 5:16 PM
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!
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!
Reposted by Dr Olivier Jean Leonce Manzi
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)
(2/2)
November 22, 2024 at 3:55 PM
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)
(2/2)
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...
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…
November 17, 2024 at 12:36 PM
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...
1. Full-time Post-Doctoral Research Associate careers.kew.org/vacancy/post...
2. Part-Time Project Manager careers.kew.org/vacancy/proj...
Reposted by Dr Olivier Jean Leonce Manzi
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
Maarja will take up the position from January 2025, for an initial term of five years.
www.newphytologist.org/news/view/354
November 15, 2024 at 9:12 AM
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
Maarja will take up the position from January 2025, for an initial term of five years.
www.newphytologist.org/news/view/354
Reposted by Dr Olivier Jean Leonce Manzi
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
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...
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
November 14, 2024 at 6:24 AM
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
Reposted by Dr Olivier Jean Leonce Manzi
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
November 13, 2024 at 4:31 PM
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
Reposted by Dr Olivier Jean Leonce Manzi
🧪 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.
November 7, 2024 at 2:19 PM
🧪 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.
Reposted by Dr Olivier Jean Leonce Manzi
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...
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
November 12, 2024 at 3:02 PM
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...
www.slu.se/en/about-slu...
Reposted by Dr Olivier Jean Leonce Manzi
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...
November 13, 2024 at 5:26 PM
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...
Reposted by Dr Olivier Jean Leonce Manzi
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
November 13, 2024 at 5:45 PM
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.
Reposted by Dr Olivier Jean Leonce Manzi
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
November 12, 2024 at 5:44 AM
Linking source-sink relationships and phenology: Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology
Reposted by Dr Olivier Jean Leonce Manzi
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.
November 12, 2024 at 12:32 PM
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.
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
November 12, 2024 at 11:03 PM
Canopy temperatures strongly overestimate leaf thermal safety margins of tropical trees - Manzi - 2024 - @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Dr Olivier Jean Leonce Manzi
Exciting first post on BlueSky:
We have a PhD opportunity with Anna Gardner & me @BIFoRUoB in mangroves ecophysiology! 🌱 🌡️
Potential funding through @CENTA_NERC - see here: centa.ac.uk/studentship/...
We have a PhD opportunity with Anna Gardner & me @BIFoRUoB in mangroves ecophysiology! 🌱 🌡️
Potential funding through @CENTA_NERC - see here: centa.ac.uk/studentship/...
2025-B34 Mangroves in a changing climate: impacts of elevated carbon dioxide and rising temperatures on mangroves’ carbon and water dynamics – CENTA
centa.ac.uk
November 12, 2024 at 7:46 AM
Exciting first post on BlueSky:
We have a PhD opportunity with Anna Gardner & me @BIFoRUoB in mangroves ecophysiology! 🌱 🌡️
Potential funding through @CENTA_NERC - see here: centa.ac.uk/studentship/...
We have a PhD opportunity with Anna Gardner & me @BIFoRUoB in mangroves ecophysiology! 🌱 🌡️
Potential funding through @CENTA_NERC - see here: centa.ac.uk/studentship/...