François Leroy
@FrsLry
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PhD candidate in macroecology trying to explain how and why biodiversity changes across space and time (banner: “The banker” Jason deCaires Taylor)
Prague, Czech Republic
Joined December 2019
🦉🐦🦢Exploring species richness change across scales! We decomposed it into colonization, extinction, and persistence, and unveils patterns from local to national scales. Thanks to the guidance of @R_you_cereal, we connect theory with ecological processes https://t.co/MaBtDjbSJr
nsojournals.onlinelibrary.wiley.com
Temporal biodiversity change involves colonization, extinction, and recurrence of species. These processes vary with spatial grain (i.e. the area at which biodiversity is assessed), but there is...
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🚨🚨🚨Last week to apply for a fully funded PhD position in Functional Vegetation Paleoecology🌿 at @science_charles, Prague! 🇨🇿 📅Deadline: January 15 🔄Spread the word! #plants #vegetation #global #macroecology #palaeoecology #ecology #functional #traits #fossil #pollen
Exciting opportunity! 🌱Join our Lab of Quantitative Ecology at Charles University, Prague! 🇨🇿 Fully funded PhD in Functional Vegetation Paleoecology. 📅Start October 2025 - Apply by January 15 Details: https://t.co/0NYBJrhTfd
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📣 Our series of free practical webinars "Cutting vEdge Tools" is back for a festive session focusing on different facets of vegetation and biodiversity data! Save the dates 📅 December 20th and January 31st. Be sure to register at https://t.co/NELnMObIyU only 100 places!
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Please share if you can! I will give a second, revamped workshop on Probabilistic inference of Phylogenetic Comparative Methods (PCM) using Julia: https://t.co/wvEynReIyS
transmittingscience.com
Transmitting Science ONLINE course PROBABILISTIC INFERENCE OF PHYLOGENETIC COMPARATIVE METHODS (PCM) USING JULIA, by Dr. Ignacio Quintero.
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🚨 New paper out! Our work on the range dynamics of five Neotropical carnivores over two decades reveals significant declines in the area of occupancy for most species. ⌛️🌎🐈⬛🦦 Read it here: https://t.co/SaLO86MKct
#GlobalEcologyAndConservation @R_you_cereal @kpv_fzp @CZUvPraze
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Shifts in Danish bird communities over the past 40 years are linked to climate & land-use change. Using volunteer bird observations, we found that local species richness fell slightly, abundance dropped 7% per decade, and composition changed rapidly 🐦⬛ https://t.co/2TJX6lnFnr
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Pokles, nebo nárůst biodiverzity? Záleží na velikosti zkoumaných oblastí 🔭 Nesrovnalosti v chápání biodiverzity se pokusili vysvětlit vědci @fzpcz na příkladu unikátních 30 let sbíraných údajů o ptačích populacích v ČR @R_you_cereal @FrsLry
https://t.co/KKYquoxGyk
@novinkycz
novinky.cz
Na plácku u domu se rozmanitost ptačích druhů nemění, ve velkém krajinném měřítku narůstá, globálně diverzita klesá. Nesrovnalosti v chápání biodiverzity (různorodosti života) se pokusili vysvětlit...
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Very good news! Our new review paper lead by Dr. Moudrý is published in @EcographyJourna. Take a look to dive into sample size, positional uncertainty, sampling bias, and species ecology individual and combined effects on Species Distribution Models.
nsojournals.onlinelibrary.wiley.com
Species distribution models (SDMs) have proven valuable in filling gaps in our knowledge of species occurrences. However, despite their broad applicability, SDMs exhibit critical shortcomings due to...
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Does conservation work? Our paper by @rewild shows that it does: a global analysis of 665 trials (incl. several by @RSPBScience) found that conservation improved the state of biodiversity or slowed declines in two-thirds of cases @BirdLife_Sci
https://t.co/DskyzkYffQ
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Very nice opinion paper in @Trends_Ecol_Evo by @callaghanct, Luca Santini, @BecksSpake , and @BowlerDBear showing that most abundance estimates are relative estimates. They argue for more attempts at estimating absolute abundance
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The blog post about our paper on the resistance and recovery of grasslands under extreme drought is finally out on the blog of @JEcology. Special thanks to @R_you_cereal, who gave the post the right touch to make it enjoyable for a wide audience! #COCOS @MSCActions @kpv_fzp
On the blog🔎 If #biodiversity begets stability, will more diverse #grasslands be better at resisting & recovering from the effects of drought? @MBazzichetto
https://t.co/BblgzrCEHi
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New preprint: Our attempt to link local individual-level ecological processes (Allee effect, Janzen-Connell hypothesis) with different rates of species loss at different spatial scales (thnx to @adam_t_clark, @FrsLry, @vojta_bartak): https://t.co/yCTS69BtBI
biorxiv.org
Assessment of the rate of species loss, which we also label extinction, is an urgent task. However, the rate depends on spatial grain (average area A ) over which it is assessed—local species loss...
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I would be glad to have feedbacks, opinions and comments on this preprint. DM and email are open! Finally, a big thanks to the coauthors, @R_you_cereal and @majarzyna with whom this manuscript wouldn’t have been possible
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⚠️ Last but not least: out of the 253 species with increasing abundance, 96% show a decrease in recruitment rate as the main process, raising concerns about eventual declines, even for seemingly thriving species 🧵👇
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We decomposed this temporal dynamic into processes of recruitment and loss, and show which of these is the strongest in driving the acceleration. Increase in loss is dominant in the Midwest and California, while it is the decrease in recruitment in the Mid-Atlantic region 🧵👇
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Preprint 🚨 On the acceleration and processes (recruitment & loss) behind the decline📉 of birds🐦in North America. We mapped the continental decline and show the acceleration hotspots in the Midwest, Mid-Atlantic and California (but that's not it 🧵👇) https://t.co/V00FBsN9nl
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First paper related to my project #COCOS out in @JEcology! We used time-series of plant biomass from the @BExplo_research to assess how biodiversity🌱relates to grassland resistance and recovery under extreme drought🔥 @MSCActions @kpv_fzp
https://t.co/3Rs0Ya9uRL More info👇
besjournals.onlinelibrary.wiley.com
Plant community functional and taxonomic components determine grasslands resistance and recovery under moderate-to-extreme drought. This points to the importance of designing landscapes with both...
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With Ecoinformatics IAVS (@iavs_ecoinfo), this afternoon, I will introduce how to use Git and GitHub to make your science reproducible ! Slides are available here:
SAVE THE DATE!📣🎉 Our (free) series of online practical seminars will start on Feb 16th at 14PM CET with @FrsLry talking about Git and GitHub. Seminars will be held on Zoom. To join, fill this form: https://t.co/NELnMObIyU
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🚨Happy to share our latest paper ! 🎉The first one for Jade 🎉 Using SEM on long-term data, we explored how seagrass mediates the impact of environmental changes on intertidal macrofauna👇(1/n) 🌊🌡️ ↙️ ↘️ 🌱 ⬇️ ↘️ ↙️ 🪱 https://t.co/V7Cw6jcY9z
esajournals.onlinelibrary.wiley.com
Foundation species such as seagrasses modulate critical ecosystem processes, promote biodiversity, and structure community spatial and temporal dynamics. Hence, they play a key role in mediating the...
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Interested in using Git and GitHub? I'll give an intro on how to use them to make your research life easier. Check the flyer for more info ⬇️
SAVE THE DATE!📣🎉 Our (free) series of online practical seminars will start on Feb 16th at 14PM CET with @FrsLry talking about Git and GitHub. Seminars will be held on Zoom. To join, fill this form: https://t.co/NELnMObIyU
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Like rock climbing? Love cliff vegetation? Then join our new @MIREN_mountains rock face survey, looking at the interaction between rock microclimate and disturbance on plants at their range edge. More info and signing up⬇️! Thanks for spreading widely! https://t.co/awCIVjGkhu
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