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Elsa Abs

@elsa-abs.bsky.social
829 followers 698 following 108 posts

Researcher CNRS @LSCE_IPSL - Earth scientist and microbial ecologist - @ERC_Research for project GAMEchange - they/iel 🇫🇷 🇱🇧 🏳️‍🌈 www.elsaabs.com gamechange.lsce.ipsl.fr/en

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Elsa Abs @elsa-abs.bsky.social · 30/07/2026
Enormous thanks to my co-authors (2/2): Kirsten Küsel, Zhen Li, @oceanna.bsky.social, William J. Riley, @scott-saleska.bsky.social and @lisawingate.bsky.social.
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Elsa Abs @elsa-abs.bsky.social · 30/07/2026
Enormous thanks to my co-authors (1/2): Christoph Keuschnig, Pierre Amato, Chris Bowler, @ericcapo12.bsky.social, @microbomics.bsky.social, @lucianachr.bsky.social, Abraham Nqabutho Dabengwa, @thomasdussarrat.bsky.social, Thomas Guzman, @linneahernandez.bsky.social, @jennihultman.bsky.social,
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Elsa Abs @elsa-abs.bsky.social · 30/07/2026
I'm excited to share our new perspective in Biogeosciences: omics to connect microbial cells to planetary biogeochemistry. Entry points for soil, ocean, air, ice, paleo-archives, plus a cross-ecosystem table of omics resources: coverage, limits, standards. doi.org/10.5194/bg-2...
doi.org
Ideas and perspectives: Using meta-omics to unravel biogeochemical changes from cell to planetary scales
Abstract. Increased human impacts on Earth systems are radically altering biogeochemical cycles. While long-term environmental observatories and Earth System Models (ESMs) provide valuable insights in...
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Elsa Abs @elsa-abs.bsky.social · 16/06/2026
Really excited to see @erikschwarz.bsky.social’s great work out! Congrats Erik!
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Elsa Abs @elsa-abs.bsky.social · 11/05/2026
An honour serving as Early Career Scientist rep for the @egubg.bsky.social these past 2 years alongside Sílvia Poblador🌱 Now passing the torch to Elisa Bruni and Rebecca Varney! Huge thanks to the amazing BG-ECS community, @anabastos.bsky.social and @lisawingate.bsky.social 💚
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Elsa Abs @elsa-abs.bsky.social · 11/05/2026
Huge thanks to the co-conveners and 16 speakers for a fantastic #EGU26 session on "Functional diversity in motion" from EEO theory to omics, soils to oceans. Already looking forward to next year! 🌍
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Elsa Abs @elsa-abs.bsky.social · 11/05/2026
Huge congrats to @thomascortier.bsky.social, postdoc in my #GAMEchange group, who delivered a fantastic poster at #EGU26 on uncovering the adaptive mechanisms behind the respiration response of soil microbes to warming at the Harvard Forest using mathematical models. Great work Thomas!
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Elsa Abs @elsa-abs.bsky.social · 11/05/2026
Super proud of Elisa Richard, PhD student in my group, who brilliantly presented her first PhD poster at #EGU26 identifying ecological strategies of soil bacteria at the global scale using metagenomics. Bravo Elisa!
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Elsa Abs @elsa-abs.bsky.social · 05/05/2026
Come to @egubg.bsky.social division meeting now in Room 2.23!
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Elsa Abs @elsa-abs.bsky.social · 03/05/2026
Glad to have the ERC seal of approval 😎
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Elsa Abs @elsa-abs.bsky.social · 03/05/2026
Thanks :) Any free time to have coffee at EGU?
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Elsa Abs @elsa-abs.bsky.social · 03/05/2026
Tomorrow 08:30am (Room 1.85/86). Don’t miss it!
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Elsa Abs @elsa-abs.bsky.social · 27/04/2026
@manzonilab.bsky.social, @bopplaurent.bsky.social, @lisawingate.bsky.social
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Elsa Abs @elsa-abs.bsky.social · 27/04/2026
📌 Mark your calendar! #EGU26 BG1.11 “Functional diversity in motion” 🗓 Oral: Mon 8:30–12:00 (1.85/86) | Poster: Mon 16:15–18:00 (X1) Eco-evo dynamics of functional diversity across systems shaping biogeochemistry. 🎤 Jaideep Joshi, Tina Santl-Temkiv, Boris Sauterey
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Elsa Abs @elsa-abs.bsky.social · 22/04/2026
The @erc.europa.eu-funded #GAMEchange project website is now live 🤩 gamechange.lsce.ipsl.fr/en/ Discover our research, team (@thomascortier.bsky.social, Elisa Richard, Mathilde Bourreau) & opportunities (EN/FR). Thanks to Marianne Tricot for the web design & Killian Renard for bringing to life!
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Elsa Abs @elsa-abs.bsky.social · 06/02/2026
New paper out in @natecoevo.nature.com showing that growth rate is as a stronger predictor of SOC than CUE. Congrats Xianjin He for leading this work!
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Reposted by Elsa Abs
Rebecca Varney @rebeccamayvarney.bsky.social · 29/01/2026
Excited to convene the upcoming EGU webinar on "Mental Health in Academia: Obstacles, Advocacy and Inclusion" on 9 February at 16:00 CET. Open to all. 👉 Register here: www.egu.eu/webinars/694... @egu.eu @egubg.bsky.social @anabastos.bsky.social @elsa-abs.bsky.social
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Elsa Abs @elsa-abs.bsky.social · 15/01/2026
Last few hours to submit an abstract to our session on eco-evolutionary drivers of biogeochemistry #EGU26 ⏰ Abstract deadline: January 15 at 13:00 CET 🔗 Session link: lnkd.in/eHV6jDrh Co-conveners: @manzonilab.bsky.social , @bopplaurent.bsky.social, Colin Prentice, Elisa Bruni
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Elsa Abs @elsa-abs.bsky.social · 09/01/2026
If you work on how diversity and/or adaptation shape ecosystem functioning—in soils, vegetation, or aquatic systems—consider our session 😃 #EGU26 ⏰ Deadline: Jan 15 🔗 Session link: lnkd.in/eHV6jDrh Co-conveners: @manzonilab.bsky.social, @bopplaurent.bsky.social, Colin Prentice, Elisa Bruni
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Elsa Abs @elsa-abs.bsky.social · 04/01/2026
Happy New Year! 🎉 Just a quick reminder about our EGU26 session on eco-evolutionary drivers of biogeochemistry — we’d love to see your abstracts! ⏰ Deadline: Jan 15 Co-organizers: Elisa Bruni, @manzonilab.bsky.social, @bopplaurent.bsky.social, Colin Prentice
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Elsa Abs @elsa-abs.bsky.social · 18/12/2025
Session co-organizers: Elisa Bruni, @manzonilab.bsky.social, @bopplaurent.bsky.social, Colin Prentice
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Elsa Abs @elsa-abs.bsky.social · 17/12/2025
📣 EGU26 – Call for abstracts Session: Functional diversity in motion: Eco-evolutionary drivers of biogeochemical processes across terrestrial & aquatic systems. 🎤 Solicited speakers: Jaideep Joshi & Boris Sauterey 🗓 Deadline: 15 Jan 2026 🔗 meetingorganizer.copernicus.org/EGU26/sessio...
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Elsa Abs @elsa-abs.bsky.social · 10/12/2025
Starting in 5min!
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Reposted by Elsa Abs
ManzoniLab @manzonilab.bsky.social · 07/12/2025
How do scientific ideas evolve and which paradigms in Earth system science deserve a fresh look? We welcome submissions to address these questions in our #EGU26 session “Re-examining Seminal Ideas in Earth System Science” www.egu26.eu/session/57516
egu26.eu
Session ITS5.2/BG10.2
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Elsa Abs @elsa-abs.bsky.social · 28/11/2025
@anabastos.bsky.social @rebeccamayvarney.bsky.social @egu.eu @egubg.bsky.social
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Elsa Abs @elsa-abs.bsky.social · 28/11/2025
Excited to convene an EGU webinar on "Fostering Diversity, Equality and Inclusion in Academia" on 10 Dec at 16:30 CET. Davide Faranda will share insights on building a more inclusive and equitable research culture across the geosciences. Open to all. 👉 Register: www.egu.eu/webinars/
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Elsa Abs @elsa-abs.bsky.social · 29/10/2025
🎉 I'm thrilled to share that I've started a permanent research position as Chargée de Recherche (CR) at the CNRS! @cnrs-insu.bsky.social I'm super thankful to all my amazing colleagues and friends who gave feedback and encouragement during the application process 💚
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Elsa Abs @elsa-abs.bsky.social · 24/07/2025
Congratulations Kyle!!! (love the soil mates 🤣🥰)
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Elsa Abs @elsa-abs.bsky.social · 17/07/2025
Thank you for sharing Brian!
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Elsa Abs @elsa-abs.bsky.social · 17/07/2025
Link to submit your abstract: lnkd.in/gkDzqqaX
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Elsa Abs @elsa-abs.bsky.social · 16/07/2025
Wondering where to submit your abstract for #AGU25 @agu.org? Check out our session co-organized with @kristenobacter.bsky.social (UMass), Ulas Karaoz and Nicola Falco (Berkeley Lab). In-person invited speakers: @andreasrichter.bsky.social (U of Vienna) & Amilcare Porporato (Princeton) 🤩
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Elsa Abs @elsa-abs.bsky.social · 06/07/2025
I'd love that! I'm based in Paris. Would that work for you?
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Elsa Abs @elsa-abs.bsky.social · 04/07/2025
Working on microscale microbial functions and/or scaling up? Submit to our Elementa special feature! 🔗 lnkd.in/gChyjaiM 📝 Rolling publication 📅 Final deadline: Sept 20, 2025 🌍 Contributions welcome from soil, ocean & human systems.
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
🙏 co-authors: @scott-saleska.bsky.social , Steve Allison, Philippe Ciais, @chopinyang.bsky.social , Mike Weintraub and Régis Ferrière.
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
6. Conclusion Microbial eco-evolution could destabilize soil carbon. Models that ignore it risk underestimating climate-carbon feedbacks. We hope this work opens the door to more theory-driven, evolution-aware Earth system models. (7/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
5. Global heterogeneity of the eco-evolutionary effect We wondered if we could replace eco-evolution with a constant correction. Answer: no. Its effect is uneven—negligible in warm regions, but up to 2× more soil C loss in cold ones. Why? Optimal enzyme allocation responds nonlinearly. (6/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
4. Implication for global soil C projections We thought that microbial adaptation would buffer warming-induced soil C loss. But because it amplifies enzyme production (as shown above), we found that adaptation aggravates the loss—by x1.8 globally. (5/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
3. Experimental validation We reviewed 13 warming studies: ✅ 9 matched our predictions (6 eco-evolution, 3 physio) ❌ 3 didn’t show increased enzyme production (though evidence was weaker). Overall, warming tends to increase microbial investment in resource acquisition. (4/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
2. Evolutionary result We found that in hostile environments (e.g. high mortality, slow uptake), selection favors direct investment in biomass over the riskier strategy of enzyme production. Since warming mainly increases uptake rate, we predicted it would favor stronger enzyme producers. (3/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
1. The eco-evolutionary model We added a trade-off to a classic microbe-soil C model and used adaptive dynamics to evolve enzyme allocation. To prevent freeloaders from taking over, we included implicit spatial structure. Bonus: enzyme production emerges—it’s no longer a free parameter. (2/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
New paper out in Global Change Biology 🤩 doi.org/10.1111/gcb.... We built the first soil carbon model that includes microbial eco-evolution using game theory — and found that adaptation could nearly double global soil carbon loss by 2100. Here is how👇(1/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
🙏 co-authors: @scott-saleska.bsky.social, Steve Allison, Philippe Ciais, @chopinyang.bsky.social, Mike Weintraub and Régis Ferrière.
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
6. Conclusion Microbial eco-evolution could destabilize soil carbon. Models that ignore it risk underestimating climate-carbon feedbacks. We hope this work opens the door to more theory-driven, evolution-aware Earth system models. (7/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
5. Global heterogeneity of the eco-evolutionary effect We wondered if we could replace eco-evolution with a constant correction. Answer: no. Its effect is uneven—negligible in warm regions, but up to 2× more soil C loss in cold ones. Why? Optimal enzyme allocation responds nonlinearly. (6/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
4. Implication for global soil C projections We thought that microbial adaptation would buffer warming-induced soil C loss. But because it amplifies enzyme production (as shown above), we found that adaptation aggravates the loss—by x1.8 globally. (5/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
3. Experimental validation We reviewed 13 warming studies: ✅ 9 matched our predictions (6 eco-evolution, 3 physio) ❌ 3 didn’t show increased enzyme production (though evidence was weaker). Overall, warming tends to increase microbial investment in resource acquisition. (4/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
2. Evolutionary result We found that in hostile environments (e.g. high mortality, slow uptake), selection favors direct investment in biomass over the riskier strategy of enzyme production. Since warming mainly increases uptake rate, we predicted it would favor stronger enzyme producers. (3/7)
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Elsa Abs @elsa-abs.bsky.social · 20/06/2025
1. The eco-evolutionary model We added a trade-off to a classic microbe-soil C model and used adaptive dynamics to evolve enzyme allocation. To prevent freeloaders from taking over, we included implicit spatial structure. Bonus: enzyme production emerges—it’s no longer a free parameter. (2/7)
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Reposted by Elsa Abs
LEMONTREE @lemontree-uofr.bsky.social · 24/04/2025
🚨 New blog! 🌱🌍 What happens when 18 scientists gather in a medieval hall to rethink Land Surface Models using Eco-Evolutionary Optimality? Find out 👉 research.reading.ac.uk/lemontree/si... #EEO #LandSurfaceModels #LEMONTREE
research.reading.ac.uk
Simpler, Smarter, Stronger: Workshop on Incorporating EEO into Land Surface Models - Lemontree
The LEMONTREE team and invited guests recently met at Dartington Hall to explore how Eco-Evolutionary Optimality theory can simplify and strengthen Land Surface Models.
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Elsa Abs @elsa-abs.bsky.social · 14/04/2025
Gorgeous place to think about eco-evolution. Thanks @lemontree-uofr.bsky.social for the invite!
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