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Ghislain Vieilledent

@ghvi.bsky.social
223 followers 444 following 3 posts

Researcher in ecology 🌱 🌿 🌲 🌳 🍂 , conservation biology 🌳 🔥 🐦 🦍 🌍, and applied statistics ✏️ 📏 💻 📊 📉 @cirad.bsky.social in the AMAP lab. -- Website: ecology.ghislainv.fr Mastodon: ecoevo.social/@ghislainv

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Reposted by Ghislain Vieilledent
New Phytologist @newphyt.bsky.social · 21/01/2026
✨ Paper spotlight ✨ (🧵 1/7) Beyond species means – the intraspecific contribution to global wood density variation nph.onlinelibrary.wiley.com/doi/10.1111/...
Fig. 1 Tree species coverage in the Global Wood Density Database (GWDD) v.2.
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IPBES @ipbes.net · 17/01/2026
The rapid expansion of green ring-necked parakeets in the UK has sparked concern among scientists and conservationists, who worry that this invasive alien species may have negative impacts on native bird populations. Read more in The Guardian: ow.ly/ka7G50XWF3N
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Pablo Castro Sánchez-Bermejo @castretis.bsky.social · 11/12/2025
In trees, intraspecific and intraindividual leaf trait variability decrease along a gradient of tree species richness and are an important part of functional diversity in forest stands, Our new paper is already out in @natcomms.nature.com doi.org/10.1038/s414... Want to know more about it? 🧵
doi.org
Intraspecific and intraindividual trait variability decrease with tree richness in a subtropical tree biodiversity experiment - Nature Communications
In forests, trait expression is influenced by tree-tree interactions. Castro Sánchez-Bermejo et al. show how phenotypic variability of tree species decreases with tree diversity and contributes import...
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Daniela Nemetschek (Krebber) @danielanemetschek.bsky.social · 12/12/2025
Working with dendrometers or curious about dendrometer research? 🌱🌐🍁🌳 🚨 Join the Global Dendrometer Network 🚨 We’re building a global community using dendrometers to study plant growth, stress, phenology & more. Sign up for updates on meetings, data calls & more 👇 docs.google.com/forms/d/e/1F...
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Tommaso Jucker @tommaso-jucker.bsky.social · 17/01/2026
Massive update to the Global Wood Density Database out today @newphyt.bsky.social led by the brilliant Fabian Fischer. What an amazing community resource! 🧪🍁🌐 nph.onlinelibrary.wiley.com/doi/10.1111/...
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Tim Curran @timcurran.bsky.social · 08/10/2025
Great PhD opportunity with an excellent supervisor: Quantify traits of tree species across the western US to determine how tree populations and forest communities will respond to drought and fire. plant-traits.net/lab-openings/
plant-traits.net
Lab openings | Laughlin Research Lab
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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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Global Change Biology @globalchangebio.bsky.social · 08/06/2025
Loss of Stomatal Regulation Sensitivity to CO2 and Reduced Xylem Hydraulic Conductivity Contribute to Long‐Term Tree Decline and Mortality 🔗 buff.ly/uIiKrSI
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 28/05/2025
Communiqué de presse @upjv-univ.bsky.social concernant les journées de lancement du Réseau thématique #RT #FORTRAN les 17 et 18 juin à Amiens ⬇️🌳🌲🌴💧🌡📈🔥🦅🦔🦋🦎🌱 Plusieurs disciplines seront représentées pour parler des forêts en transformation @cnrsecologie.bsky.social @cnrsshs.bsky.social @cnrs.fr
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 09/05/2025
In response to climate change #CC, #species #shift in many dimensions, moving in space along many climatic clines, including #microclimatic ones (horizontally & vertically) & adjusting their #phenology & #behaviour in time 🧪🌐🌍🍁🌳🌲🌴🦔🦅🦎🐝🦐🦑🐠🦈🐋 @cp-trendsecolevo.bsky.social shorturl.at/W9fGd
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William (Bill) Sutherland @billsutherland.bsky.social · 21/04/2025
Latest video is on niche differentiation and waterfowl. Why surface feeding and diving ducks look and fly differently, why pintail look elegant, why gadwall are mean to coot, why shoveler feed together and how pochard and tufted diets differ completely. youtu.be/-Aymrp9mr4E?...
youtu.be
Niche differentiation: why species differ?
YouTube video by Bill Sutherland's Conservation Concepts
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Anne-Laure D 🌿 @aldpaleo.bsky.social · 27/03/2025
If you are a paleobotanist or botanist interested in doing a postdoc on fossil plants with me in Montpellier, I'm happy to help prepare a proposal for this year's #MSCA Postdoc Fellowship call (deadline Sept. 10). marie-sklodowska-curie-actions.ec.europa.eu/actions/post... 1/3 #paleobotany #botany
marie-sklodowska-curie-actions.ec.europa.eu
Postdoctoral Fellowships
The information provided on this page is a summary of the main rules and requirements for Postdoctoral Fellowships (PFs) and who can apply for them.
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Emily Lines @emilyrlines.bsky.social · 24/03/2025
I am #hiring! Do you like #lidar #data and #forests? Enjoy both computational & field work? I am hiring a Computational and Field Senior Technician to join my UKRI FLF project team for 2 yrs, based in Cambridge, UK (not remote). More details here (closing April 7th) www.jobs.cam.ac.uk/job/50700/
jobs.cam.ac.uk
Computational & Field Senior Technician (Fixed Term) - Job Opportunities - University of Cambridge
Computational & Field Senior Technician (Fixed Term) in the Department of Geography at the University of Cambridge.
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 22/03/2025
This is just fascinating ⬇️ Tropical forests 🌴🌴🌴🌴 were occupied by humans 150 000 years ago shorturl.at/pTdCz
shorturl.at
Humans in Africa’s wet tropical forests 150 thousand years ago - Nature
The identification of tools dated to the time of Homo sapiens associated with microfloral evidence of wet tropical forests indicates that West African forests were occupied by humans much earlier...
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Nicolas Mouquet @nmouquet.bsky.social · 11/03/2025
Why do we fear some animals more than others? 🕷️🐍🐊 Check out our study in @peopleandnature.bsky.social with @karlzlr.bsky.social on danger and fear in shaping human biophobia. Fear isn’t just danger—social & cultural factors matter! 🔗 besjournals.onlinelibrary.wiley.com/doi/full/10.... 🌐🧪🌍🦤
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Ana Benítez @anabenlop.bsky.social · 07/03/2025
New PhD position @mncn-csic.bsky.social to work on biodiversity risk assessments, together with @miguelbaraujo.bsky.social and myself. More details here: www.anabenitezlopez.com/job-offer-ph...
anabenitezlopez.com
Job offer: PhD candidate in biodiversity risk assessments - Ana Benitez Lopez
Project Description Red Lists are critical tools for assessing species’ extinction risk, systematically evaluating threats based on past and ongoing environmental drivers. However, global change drive...
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Tim Baker @kofitim.bsky.social · 04/03/2025
West-east gradient across Amazonia in fast-slow life history strategies of forests beautifully illustrated by new ATDN paper; forests are 'fast' in the west and 'slow' in the northeast of Amazonia doi.org/10.1038/s420...
Map of Amazonia showing how the functional composition of forests varies west-east across Amazonia
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Emily Lines @emilyrlines.bsky.social · 18/02/2025
Our newest paper led by Julián Tijerín-Triviño finds that #climatechange is slowing the productivity of European #forests: onlinelibrary.wiley.com/doi/10.1111/geb.70011 A 🧵: We used 3 surveys over 15-30 years from >13,900 NFI plots in Mediterranean, temperate and boreal regions (1/5)
onlinelibrary.wiley.com
Forest Productivity Decreases in Response to Recent Changes in Vegetation Structure and Climate in the Latitudinal Extremes of the European Continent
Aim Climate change is driving increasingly frequent and intense extreme climatic events, pushing many forests worldwide beyond their physiological thresholds. Despite the major role played by forest...
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Jeffery Cannon, Landscape Ecology Lab @jefferybcannon.bsky.social · 21/11/2024
Ready to learn how to use LiDAR for research in #forestry and natural resources using #R? This week I am releasing a 7-part series to help you get started! Share with anyone you know who wants to get started. Part 1 covers acquiring, & viewing LiDAR data! bit.ly/lidR-module1
bit.ly
Module 1: Getting started with LiDAR processing for forestry and natural resources - The Jones Center at Ichauway Research Labs
If you are interested in learning to use LiDAR for forestry and natural resources, this tutorial can help you get started. You will learn to view large datasets, create raster products, map trees, and...
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Jeffery Cannon, Landscape Ecology Lab @jefferybcannon.bsky.social · 06/02/2025
Please RT and share! JOIN THE LAB! We are looking to recruit a motivated PhD student to study how fire shapes forest dynamics in #longleaf pine at the beautiful @thejonesctr.bsky.social with Dr. Heather Alexander Auburn University. Apps due Feb 28, 2025. www.jonesctr.org/wp-content/u...
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Jeffery Cannon, Landscape Ecology Lab @jefferybcannon.bsky.social · 10/02/2025
I'm reposting my tutorials for learning #LiDAR in #R as I migrate to BlueSky! Here is Part 7of my 7-part series to help you get started! Module 7 puts everything together to learn parallel processing for large-scale analysis! t.co/VldnROjXm2
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Brian J. Enquist @bjenquist.bsky.social · 07/02/2025
Global change refugia could shelter species from multiple threats by @mrillig.bsky.social www.nature.com/articles/s44...
nature.com
Global change refugia could shelter species from multiple threats - Nature Reviews Biodiversity
Locations that are relatively insulated from the effects of climate change (so-called climate change refugia) might be similarly insulated from a range of other anthropogenic stressors. The degree of ...
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Monica G. Turner @monicagturner.bsky.social · 04/02/2025
New in #PNAS, temp-driven increased seed production in European beech caused 28% reduction in annual tree ring increments since 2005. Important for European forests and good example using long-term data (43 yr) of how past does not predict future #forestdynamics. www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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William (Bill) Sutherland @billsutherland.bsky.social · 01/02/2025
I believe that the more we understand nature, the more we can appreciate its beauty. I want to help decode the patterns of nature. Why are habitats found where they are? What makes certain species thrive? What do these ecosystems tell us about the past? Hope you enjoy. youtube.com/playlist?lis...
youtube.com
Habitats - YouTube
How does each habitat function? Why does it occur where it does? How does this understanding affect conservation?
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Cirad @cirad.bsky.social · 30/01/2025
The #EU Deforestation & Forest Degradation Regulation is due to come into force in 2026. It will ban products made using raw materials from deforested areas on the EU market. To this end, research needs to come up with indicators to differentiate between preserved & degraded forests. 👉 lc.cx/iEG_5p
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Global Ecology 🌐 @global-ecology.bsky.social · 29/01/2025
Promising method to obtain interaction networks for a large number of species … and this is just the beginning! by @francoiskeck.bsky.social, Henry Broadbent and @florianaltermatt.bsky.social 🌐
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Global Ecology 🌐 @global-ecology.bsky.social · 29/01/2025
🌿 Botanic gardens are full! 👉 A. Cano et al. Jan. 2025 www.nature.com/articles/s41... 🔑 This study analyzes a century of data, revealing how living plant collections reached peak capacity due to resource limits. With 40% of plant species at risk, it calls for upscaling botanic gardens! 🌐🧪🌍🦤🦑🪴🍁
nature.com
Insights from a century of data reveal global trends in ex situ living plant collections - Nature Ecology & Evolution
The authors collate a meta-collection of ex situ living plant diversity held in 50 botanical collections worldwide, spanning a century of data and currently containing ~500,000 accessions. Their analy...
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Cirad @cirad.bsky.social · 29/01/2025
🌳One way of combating #deforestation is to define zones at particular risk. The difficult part is identifying those zones. 🗺Tropical countries now have access to a new plugin, #Deforisk, developed by @fao.org & #CIRAD, that maps risks on a national or local level 👉 lc.cx/aBFuxx @ghvi.bsky.social
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iBartomeus @ibartomeus.bsky.social · 29/01/2025
100 years with the Lotka-Volterra equation... let's celebrate!
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Dylan Craven Moore @dylancraven.bsky.social · 24/01/2025
How does landscape context influence recruitment dynamics in secondary forests? Find out in our new paper lead by Dr. van Breugel: onlinelibrary.wiley.com/doi/10.1111/... #AguaSalud
onlinelibrary.wiley.com
Persistent Effects of Landscape Context on Recruitment Dynamics During Secondary Succession of Tropical Forests
In a tropical agricultural landscape, conserving strips of secondary forests along streams had a positive impact on tree recruitment in young regrowing forests. Surprisingly, this effect persisted ev...
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Cirad @cirad.bsky.social · 24/01/2025
Pour lutter efficacement contre la #déforestation, le #Cirad et la @fao.org ont développé l'outil #Deforisk. 🗺️ Ce logiciel gratuit et open source permet de définir des zones prioritaires, considérées comme particulièrement à risque, à l’échelle nationale ou locale. 👉 lc.cx/cGdsfy @ghvi.bsky.social
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The International Biogeography Society @biogeography.bsky.social · 21/01/2025
The International Biogeography Society is excited to announce three upcoming workshops. For more details on each course and to register please visit the TIBS website: www.biogeography.org/news/categor...
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Cirad @cirad.bsky.social · 21/01/2025
Want to find out more about #CIRAD? 💻 Discover our #research topics, remit and impact on our website, www.cirad.fr ✉️ Subscribe to our #newsletter to keep up with our news and our scientists' research results 👉 lc.cx/AYIpIp
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Ghislain Vieilledent @ghvi.bsky.social · 21/01/2025
New article on trait-environment relationships in tropical forests of French Guiana. Marion Boisseaux has published a new paper from her PhD thesis (part of the METRADICA project). While environment didn't explain much of the trait value variation when traits were considered individually,
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AddictAuxSciences @addictauxsciences.bsky.social · 20/01/2025
📣 Rendez-vous demain soir au Gazette Café ! 🌟 Découvrez les secrets de la présence de la loutre sur le Lez 🦦 lors de la conférence de @oaggimenez.bsky.social, le 21 janvier à 20h. 👉 On en parle déjà dans le Midi Libre : www.midilibre.fr/2025/01/20/c... Ne manquez pas cette soirée Nature ! 🌍✨
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Peer Community Journal @peercomjournal.bsky.social · 20/01/2025
Now published in Peer Community Journal, #Ecology section: Using informative priors to account for identifiability issues in occupancy models with identification errors
peercommunityjournal.org
Using informative priors to account for identifiability issues in occupancy models with identification errors
Monchy, Célian1 ; Etienne, Marie-Pierre2 ; Gimenez, Olivier1 1 CEFE, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France 2 IRMAR - Institut de Recherche Mathématique de Rennes, Rennes, France
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William (Bill) Sutherland @billsutherland.bsky.social · 19/01/2025
Thanks to the British Ecological Society for creating these great webpages leading to the YouTube videos "Learn a new conservation concept in just 2 minutes". Part of the educational resources designed and curated by their in-house teachers. www.britishecologicalsociety.org/content/cons...
britishecologicalsociety.org
Conservation Concepts - British Ecological Society
Learn a new conservation concept in just 2 minutes.
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Blas M. Benito @blasbenito.com · 09/01/2025
After one year of intermittent development, version 2.0 of the #Rstats package {distantia} (URL: blasbenito.github.io/distantia) is finally on CRAN! This is a FULL REWRITE of the original package, which now has a fast and efficient C++ core, additional tools, and a much more intuitive API.
Snapshot of R code showing the install of the R package distantia via the command install.packages(), and the version of the newly installed package as printed by the command packageVersion().
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FRB|Fondation pour la recherche sur la biodiversité @frbiodiv.bsky.social · 15/01/2025
[📝Publication] Comprendre les déplacements des animaux dans des paysages fragmentés 🐾 Des lynx aux loutres, la modélisation peut guider les décisions de conservation. bit.ly/4akSsk1 #Cesab #Discar @umontpellier.bsky.social @cnrs.bsky.social @maeliskervellec.bsky.social @oaggimenez.bsky.social
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Ghislain Vieilledent @ghvi.bsky.social · 16/01/2025
Je viens de faire mon #eXit! L’exode de X est massif. Ne perdez pas un seul de vos abonnés. Grâce à #HelloQuitX j’ai inscrit 1459 nouveaux passagers pour partir vers #BlueSky & #Mastodon. Retrouvez automatiquement vos communautés le #20Janvier via app.helloquitx.com !
app.helloquitx.com
HelloQuitteX
Libérez vos espaces numériques
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Kali Middleby @kalimiddleby.bsky.social · 15/01/2025
Check out our new article just out in The Conversation highlighting the effects of warming leaves +4°C in tropical trees. 🌿🌡️ theconversation.com/study-shows-...
theconversation.com
Study shows hot leaves can’t catch carbon from the air. It’s bad news for rainforests – and Earth
An experiment in the Daintree rainforest found the rate of photosynthesis in leaves warmed by 4°C dropped by an average of 35% compared to non-warmed controls.
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Jonas Lembrechts @jlembrechts.bsky.social · 17/12/2024
NEW PAPER out, and one of my personal favourites! We bring you ten practical guidelines for microclimate research, and it is the methodological rulebook you have all been waiting for! I walk you through it here ⬇️ the3dlab.org/2024/12/17/t...
the3dlab.org
Ten practical guidelines
One of the biggest dreams when we started the SoilTemp project was not only to bring together all available microclimate data into a single, unified database but also to align how we think about an…
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Kali Middleby @kalimiddleby.bsky.social · 08/12/2024
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
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Olivier Gimenez 🦦 @oaggimenez.bsky.social · 20/11/2024
I have a new paper 😇 in which I show how to analyse data collected on stream networks using occupancy models, check it out here onlinelibrary.wiley.com/doi/10.1002/... 😉 I also have a few slides there that give additional explanations doi.org/10.6084/m9.f...
Cover page of the paper entitled "Spatial Occupancy Models for Data Collected on Stream Networks" published in the journal Aquatic Conservation: Marine and Freshwater Ecosystems. The abstract is:
1. To effectively monitor biodiversity in streams and rivers, we need to quantify species distribution accurately.
2. Occupancy models are useful for distinguishing between the non-detection of a species and its actual absence. While these models can account for spatial autocorrelation, they are not suited for streams and rivers due to their unique network spatial structure.
3. Here, I propose spatial occupancy models specifically designed for data collected on stream and river networks. I present the statistical developments and illustrate their application using data on a semi-aquatic mammal.
4. Overall, spatial stream network occupancy models offer a robust method for assessing biodiversity in freshwater ecosystems.A figure showing the importance to account for stream distance and flow connectivity when analysing data on stream networks. Four sites are represented on a river, two sites are flow connected and two are flow unconnected.
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Javier Fernández-López @javi-ferlop.bsky.social · 30/12/2024
spAbundance package (Doser et al. doi.org/10.1111/2041-210X.14332) was published this year at @methodsinecoevol.bsky.social! It fits a variety of single/multispecies abundance models using Bayesian Inference allowing also for hierarchical frameworks. Let me show you a funny example 🧵👇(1/6) #rstats
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