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Antoine Champreux

@toinechampreux.bsky.social
1.2K followers 327 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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Reposted by Antoine Champreux
Guillaume Papuga @guillaume-papuga.bsky.social · 08/09/2025
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....
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Reposted by Antoine Champreux
Javi Ibarrondo @jibarrondo.bsky.social · 03/07/2025
[vegetation responded at timescales from hundreds to tens of thousands of years, but not at timescales shorter than about 150 years] Coupled, decoupled, and abrupt responses of vegetation to climate across timescales | Science www.science.org/doi/10.1126/... 🧪
science.org
Coupled, decoupled, and abrupt responses of vegetation to climate across timescales
Climate and ecosystem dynamics vary across timescales, but research into climate-driven vegetation dynamics usually focuses on singular timescales. We developed a spectral analysis–based approach that...
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Reposted by Antoine Champreux
Martin Jung @martinjung.eu · 01/07/2025
Also just out: Our new review in @ecography.bsky.social on how ecological models tend to incorporate land use. Reviewing and benchmarking ecological modelling practices in the context of land use doi.org/10.1002/ecog...
doi.org
Reviewing and benchmarking ecological modelling practices in the context of land use
Despite habitat loss and degradation are the primary drivers of biodiversity loss, different conclusions have been drawn about the importance of land-use or land-cover (LULC) change for biodiversity....
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Reposted by Antoine Champreux
Manuela Gonzalez Suarez @mgs-cielo-azul.bsky.social · 04/06/2025
New paper! led by Ruben Bernardo-Madrid "A general rule on the organization of biodiversity in Earth’s biogeographical regions" in NEE @natureportfolio.nature.com Read it here: doi.org/10.1038/s415...
doi.org
A general rule on the organization of biodiversity in Earth’s biogeographical regions - Nature Ecology & Evolution
Ecological assemblages may be spatially organized by both context dependency and general processes. Here the authors find general patterns in the organization of regional biodiversity in biogeographic...
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Reposted by Antoine Champreux
Brian J. Enquist @bjenquist.bsky.social · 02/06/2025
Amazon rainforest adjusts to long-term experimental drought ..."After elevated tree mortality during the first 15 years, ecosystem-level structural changes resulted in the remaining trees no longer experiencing drought stress." 🧪🌐🌾 www.nature.com/articles/s41...
nature.com
Amazon rainforest adjusts to long-term experimental drought - Nature Ecology & Evolution
Drought is a growing issue in tropical rainforests. Here, the authors revisit a long-term rainfall manipulation experiment in the Amazon to show that tree mortality was followed by community-level adj...
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Antoine Champreux @toinechampreux.bsky.social · 28/03/2025
🌲🌳🌐 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.
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Reposted by Antoine Champreux
Rupert Seidl @rupertseidl.bsky.social · 24/02/2025
Interesting work by van der Meersch et al. out in Ecology Letters, nicely illustrating that process-based models are more robust than correlative models for predicting species distributions under novel climatic conditions doi.org/10.1111/ele....
doi.org
Paleorecords Reveal Biological Mechanisms Crucial for Reliable Species Range Shift Projections Amid Rapid Climate Change
Climate change has created an urgent need for reliable projections of species distributions. By hindcasting forest tree range shifts across Europe over the last 12,000 years, we show that process-exp...
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Reposted by Antoine Champreux
Nicolas Mouquet @nmouquet.bsky.social · 12/02/2025
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 ! 🌐🧪🌍🦤🍁🦑🪴🦉🐍🌾
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Botany One @botany.one · 27/01/2025
📝 How Amazon Trees Marched to the Atlantic Forest 🧵 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.
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Antoine Champreux @toinechampreux.bsky.social · 31/01/2025
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 ! 😊
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Emily Mitchell @egmitchell.bsky.social · 22/01/2025
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...
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Jeff Corbin @jeffcorbin.bsky.social · 28/01/2025
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/...
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Emilio Vilanova @evilanova.bsky.social · 28/01/2025
geog.umd.edu/featured-con... Annual data from 2015 to 2023 provides detailed insights into tree canopy cover and height. 🍁🍁🌳 #forestecol
geog.umd.edu
Woody Vegetation Dataset for Latin America Released
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Reposted by Antoine Champreux
Dave Klinges @thenaturedave.bsky.social · 21/01/2025
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...
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Antoine Champreux @toinechampreux.bsky.social · 24/01/2025
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.
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Antoine Champreux @toinechampreux.bsky.social · 24/01/2025
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.
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Antoine Champreux @toinechampreux.bsky.social · 23/01/2025
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
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Reposted by Antoine Champreux
Christie Wilcox @nerdychristie.bsky.social · 21/01/2025
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)
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Antoine Champreux @toinechampreux.bsky.social · 17/01/2025
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...
doi.org
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...
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Antoine Champreux @toinechampreux.bsky.social · 03/01/2025
🌍 Projected future climatic forcing on the global distribution of #vegetation types 🌲🌳🌿🍃🌱 Allen et al. 👉 doi.org/10.1098/rstb... #Biogeography #ecology #biomes
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Reposted by Antoine Champreux
Julianne Zelda Kiely 🌿Commissions open🌿 @palaeojules.bsky.social · 21/10/2024
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
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Reposted by Antoine Champreux
Brian J. Enquist @bjenquist.bsky.social · 07/12/2024
An important review - The ecology of plant extinctions - "Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change & show that predictions of massive climate-driven extinctions later this century are plausible" www.sciencedirect.com/science/arti... 🌾🌎🧪🌐
Image of the first page and abstract of the paper "The ecology of plant extinctions
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https://doi.org/10.1016/j.tree.2024.11.007
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Highlights
The fossil record suggests that climate change was the major driver of plant extinctions and regional extirpations from the Pliocene until recently, when anthropogenic habitat loss became dominant.
Known recent plant extinctions are disproportionately few in comparison with well-studied animal taxa, but many more species are probably committed to inevitable extinction unless given targeted support.
Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change and show that predictions of massive climate-driven extinctions later this century are plausible.
The proximate causes for population extirpations are still rarely known but are likely to be highly varied and both species and location specific."
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Antoine Champreux @toinechampreux.bsky.social · 06/12/2024
🌍 Crowd-sourced trait data can be used to delimit global #biomes 🌳🌲🌱🌿🍃 Scheiter et al. 👉 bg.copernicus.org/articles/21/... #Biogeography #vegetation #FunctionalTraits #ecology 🌐
Figure 7 from S. Scheiter et al. 2024 showing 3 world maps representing the predicted and observed biome maps, as well as the areas where they agree or disagree.
Caption from the paper: Global biomes derived from traits. Using species distribution models and bioclimatic data, biome patterns derived from the spatial
coverage of the trait data were extrapolated to the global scale. Here, results from trait cluster 1 and the Nature Conservancy (2009) biome map were used. Biomes: 1, tropical subtropical moist broadleaf forest; 3, tropical subtropical grassland savanna and shrub; 4, tropical subtropical dry broadleaf forest; 5, tropical subtropical coniferous forest; 6, flooded grassland and savanna; 7, desert and xeric shrub; 8, montane grassland and shrub; 9, mediterranean forest woodland and scrub; 10, temperate broadleaf and mixed forest; 11, temperate grassland savanna and shrub; 12, temperate conifer forest; 13, boreal forest/taiga; 14, tundra. Publisher’s remark: please note that the above figure contains disputed territories.
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 03/12/2024
🌳 New findings 🌳 Phylogenetic diversity cannot be used as a proxy for functional diversity in vascular plant communities 🌲🌳🌴🌵🌱🍀🌾🌼 We used the #sPlot database & found a pronounced decoupling between phylogenetic & functional diversity ⬇️ 🧪🌐🌏🍁 @natureecoevo.bsky.social shorturl.at/Bf5IK
shorturl.at
Global decoupling of functional and phylogenetic diversity in plant communities - Nature Ecology & Evolution
Functional diversity and phylogenetic diversity are expected to be positively correlated. Here the authors show that the covariation between these metrics in vascular plant communities around the worl...
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Antoine Champreux @toinechampreux.bsky.social · 05/12/2024
Global burned area increasingly explained by climate change Burton et al. 👉 rdcu.be/d2yat "The simulations show that climate change increased global burned area by 15.8% [...] for 2003–2019 and increased the probability of experiencing months with above-average global burned area by 22% [...]"
rdcu.be
Global burned area increasingly explained by climate change
Nature Climate Change - Complex interactions between drivers have hampered efforts to understand observed changes in fire behaviour worldwide. Here fire model ensembles and impact attribution show...
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Antoine Champreux @toinechampreux.bsky.social · 03/12/2024
Biogeography starter pack! 🌐🌎🌏🌍
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 30/11/2024
I have just created a starter pack on #biodiversity 🦠🌳🌲🦋🐸🐠🦅🦔 #redistribution aka #species #range #shifts or species on the #move #SOTM and community composition changes in response to global change drivers 🌐🌍🌎🌏 Let me know if you are interested to join the list go.bsky.app/6KqEpb9
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Antoine Champreux @toinechampreux.bsky.social · 29/11/2024
🌐 Did you know? “Desert” “rainforest” “tundra” “grassland” or “savanna” are widely used terms in common language, but each have multiple definitions and no universally accepted spatial distribution. Find out more in our recent paper 👉 doi.org/10.1002/ecm.... #biome #ecology #biogeography
Figure 4 from Champreux et al. (2024, Ecological Monographs)

To the right: a map of the world with shades of purple and yellow showing that the rate of agreement among terrestrial biome maps is higher in equatorial forests and tropical deserts

To the left: a graph aligned with the map showing that the average agreement by latitude among biome maps is higher on the Equator and the two Tropics
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Antoine Champreux @toinechampreux.bsky.social · 27/11/2024
Weaker Atlantic overturning circulation increases the vulnerability of northern Amazon forests by T. K. Akabane et al. rdcu.be/d1FTy "During a past AMOC slowdown (...), pollen data evidence a decline in cold- and moist-affinity elements, coupled with a rise in seasonal tropical vegetation."
rdcu.be
Weaker Atlantic overturning circulation increases the vulnerability of northern Amazon forests
Nature Geoscience - A slower Atlantic meridional overturning circulation during Heinrich Stadial 1 led to the spread of seasonal tropical vegetation in northern Amazonia, a pattern that may repeat...
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Antoine Champreux @toinechampreux.bsky.social · 22/11/2024
Hi everyone! This is my first post here: I am an ecologist focusing on vegetation 🌱🌲🌳 I just completed my PhD in #paleoecology, combining the fossil record and computer simulations to study the effects of #ClimateChange on ecosystems after the last #IceAge. #biogeography #paleobotany #megafauna
a peat bog in Ireland
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