Antoine Champreux
@toinechampreux.bsky.social
1.1K followers 330 following 22 posts
PhD - Global Ecology, Paleoecology, Paleobotany, Biogeography & Prehistory | vegetation modelling and spatial analyses Deep-time to modern vegetation distribution 🌱 Megafauna extinctions | Neotropics after the Ice Age 🌎
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toinechampreux.bsky.social
What is a #biome? 🌳🌲🌱

How can we delineate past, present and future biomes, despite the patchy and incomplete data we have on the distribution of nature on Earth? 🌍🌐

Our review 👉 doi.org/10.1002/ecm....

🧪 #ecology #biogeography #paleoecology #climate #vegetation #FunctionalTraits
Figure 1 from the study by Champreux et al. (published in Ecological Monographs) showing four global biome maps using different biome-delimitation criteria resulting in various geographic divisions, biome names, and number of biomes.

Caption from the study: Global biome maps compared in this study. (a) Compilation biome map of World Wildlife Fund Terrestrial Ecoregions of the World (Olson et al., 2001). (b) Simulated biome map from Holdridge's (1967) life zones (Leemans, 1990a, 1990b) and two functional biome maps: (c) MODIS-IGBP land-cover-type product (Friedl et al., 2010; Loveland & Belward, 1997) and (d) dominant biome distribution over 31 years from global functional biome scheme from Higgins et al. (2016, 2017). Biome names are derived from three letters (1) tall versus short, (2) low, medium, and high vegetation productivity index, and (3) cold, dry, both cold and dry, nonseasonal for growth limitation index.
Reposted by Antoine Champreux
First post on Bluesky! 🌿
Excited to share our new study in Ecography, led by Maxime Lenormand: combining naturalist inventories and satellite data to map plant biodiversity.
Here’s a bioregionalization of the flora of France!
🔗 nsojournals.onlinelibrary.wiley.com/doi/full/10....
Reposted by Antoine Champreux
Reposted by Antoine Champreux
toinechampreux.bsky.social
🌲🌳🌐 New study reminds us that forests act globally as a #carbon sink

Between 2001 and 2023, the world's #forests have absorbed 5.5 gigatonnes more #CO2 than they have emitted on average each year.

👉 Gibbs et al. dx.doi.org/10.5194/essd... 🧪
Figure 3 from the paper of Gibbs et al (2025) showing three maps respectively representing the amounts of greenhouse gas emmisions, removal, and net flux.

Caption from the paper: Forest-related GHG fluxes (annual average, 2001–2023). (a) Gross GHG emissions. (b) Gross CO2 removals. (c) Net GHG flux. Fluxes are aggregated to 0.04×0.04° (approximately 4×4 km) cells for display purposes. Publisher's remark: please note that the above figure contains disputed territories.
Reposted by Antoine Champreux
nmouquet.bsky.social
Global Ecology 🌐 starter pack vol 1 & 2 are full and curated !! ✨💚

Please share so they will fly into the blue sky 🦋🌈

Vol1 👉 bsky.app/starter-pack...

Vol2 👉 bsky.app/starter-pack...

Will start a Vol. 3 soon, please reply if you want to be in !

🌐🧪🌍🦤🍁🦑🪴🦉🐍🌾
Reposted by Antoine Champreux
botany.one
📝 How Amazon Trees Marched to the Atlantic Forest 🧵
https://doi.org/n3rb

Ancient rainforest trees found hidden highways through Brazil's drylands, making more than a dozen epic journeys from the Amazon to the Atlantic coast over twelve million years.
#Botany #PlantScience 🧪 #InBrief
The Atlantic Forest in Brazil. A lush almost mossy looking canopy of trees covers pointy hills in close proximity. It's the kind of landscape that a geographer would get goosebumps looking at.
toinechampreux.bsky.social
A great starter pack to connect with people working on #ecology at a large scale 🌍🧪

Global Ecology Vol. 2 👉 go.bsky.app/L37W5uH

DM @global-ecology.bsky.social to join the pack, there’s still room for more ! 😊
Reposted by Antoine Champreux
egmitchell.bsky.social
Super excited that our review on the ecology of the Ediacaran-Cambrian transition is now out on how ecology changes across scales from organisms to communities to the world through time. Fab art @franzanth.bsky.social showing the build up of ecological complexity
www.cambridge.org/core/journal...
Reposted by Antoine Champreux
jeffcorbin.bsky.social
How will biodiversity respond to efforts to mitigate C emissions? Smith et al. in @science.org document that vert. biodiv. benefits from (natural) reforestation. BUT, planting biocrops, while it reduces climate change, hurts most species bc they lose habitat. 🧪🌎
www.science.org/doi/10.1126/...
Reposted by Antoine Champreux
evilanova.bsky.social
geog.umd.edu/featured-con... Annual data from 2015 to 2023 provides detailed insights into tree canopy cover and height. 🍁🍁🌳 #forestecol
Woody Vegetation Dataset for Latin America Released
geog.umd.edu
Reposted by Antoine Champreux
thenaturedave.bsky.social
My final PhD chapter published in FEE (Frontiers in Ecology and the Environment): re-mapping Köppen-Geiger climate zones, but now using microclimate! Very excited to have this one out:
onlinelibrary.wiley.com/doi/abs/10.1...
Reposted by Antoine Champreux
toinechampreux.bsky.social
What is a #biome? 🌳🌲🌱

How can we delineate past, present and future biomes, despite the patchy and incomplete data we have on the distribution of nature on Earth? 🌍🌐

Our review 👉 doi.org/10.1002/ecm....

🧪 #ecology #biogeography #paleoecology #climate #vegetation #FunctionalTraits
Figure 1 from the study by Champreux et al. (published in Ecological Monographs) showing four global biome maps using different biome-delimitation criteria resulting in various geographic divisions, biome names, and number of biomes.

Caption from the study: Global biome maps compared in this study. (a) Compilation biome map of World Wildlife Fund Terrestrial Ecoregions of the World (Olson et al., 2001). (b) Simulated biome map from Holdridge's (1967) life zones (Leemans, 1990a, 1990b) and two functional biome maps: (c) MODIS-IGBP land-cover-type product (Friedl et al., 2010; Loveland & Belward, 1997) and (d) dominant biome distribution over 31 years from global functional biome scheme from Higgins et al. (2016, 2017). Biome names are derived from three letters (1) tall versus short, (2) low, medium, and high vegetation productivity index, and (3) cold, dry, both cold and dry, nonseasonal for growth limitation index.
toinechampreux.bsky.social
What is a #biome? 🌳🌲🌱

How can we delineate past, present and future biomes, despite the patchy and incomplete data we have on the distribution of nature on Earth? 🌍🌐

Our review 👉 doi.org/10.1002/ecm....

🧪 #ecology #biogeography #paleoecology #climate #vegetation #FunctionalTraits
Figure 1 from the study by Champreux et al. (published in Ecological Monographs) showing four global biome maps using different biome-delimitation criteria resulting in various geographic divisions, biome names, and number of biomes.

Caption from the study: Global biome maps compared in this study. (a) Compilation biome map of World Wildlife Fund Terrestrial Ecoregions of the World (Olson et al., 2001). (b) Simulated biome map from Holdridge's (1967) life zones (Leemans, 1990a, 1990b) and two functional biome maps: (c) MODIS-IGBP land-cover-type product (Friedl et al., 2010; Loveland & Belward, 1997) and (d) dominant biome distribution over 31 years from global functional biome scheme from Higgins et al. (2016, 2017). Biome names are derived from three letters (1) tall versus short, (2) low, medium, and high vegetation productivity index, and (3) cold, dry, both cold and dry, nonseasonal for growth limitation index.
toinechampreux.bsky.social
Rapid rise in atmospheric #CO2 marked the end of the Late #Palaeozoic Ice Age

Jurikova et al. 👉 rdcu.be/d7fQJ

"About 294 million years ago, atmospheric CO2 rose abruptly (4-fold), releasing the Earth from its penultimate ice age and transforming the Early Permian into a warmer world."
Figure 5 from the recent paper from Jurikova et al. (2025), a paleo-artistic representation of the Carboniferous-Permian transition showing luxuriant Carboniferous forests on the left and more arid Permian environments on the right with associated fauna, separated by a river.

Caption from the paper: A relatively rapid rise in atmospheric CO2 approximately 294 Ma released the Earth from its penultimate icehouse (left) and transitioned the world to a warmer and drier climate of the Early Permian (right). Palaeo-artistic rendering based on findings of this study and previously published literature
Reposted by Antoine Champreux
nerdychristie.bsky.social
Our records of the world’s biodiversity are patchy—but that's not because lots of places are "unexplored." That story and more of the best in @science.org and science in this edition of #ScienceAdviser: www.science.org/content/arti... 🧪
World map showing biodiversity collection hotspots (red) and blindspots (blue).  BALL ET AL./PEERJ  (2025)
toinechampreux.bsky.social
CO2 fertilization can be a disturbance leading to worldwide #forest degradation 🌳🌲

"even the most remote forests in the world have been altered by human action via CO2 fertilization, and the responsibility for their integrity must be shared globally" 🌐

Lapola et al. 👉 doi.org/10.1002/ppp3...
Not just semantics: CO2 fertilization can be a disturbance leading to worldwide forest degradation
The physiological effects of increased atmospheric CO2 (CO2 fertilization) on intact forests are generally seen as a process that might buffer them against the impacts of climate change. However, CO2...
doi.org
toinechampreux.bsky.social
Hi Graciela, I'd be happy to be added 😊
toinechampreux.bsky.social
🌍 Projected future climatic forcing on the global distribution of #vegetation types 🌲🌳🌿🍃🌱

Allen et al. 👉 doi.org/10.1098/rstb...

#Biogeography #ecology #biomes
Reposted by Antoine Champreux
palaeojules.bsky.social
Post your most popular #art from Twitter🍁

I've never had anything actually go viral or get many likes, but this Ginkgoales leaf montage ended up being my most popular piece of art: so YAY for paleobotany!!! #paleoart #paleobotany #ginkgo