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César Marín

@cmarin.bsky.social
606 followers 406 following 121 posts

Professor of Soil Ecology at UST-Chile. Associate Editor: npj Soil Ecology. Lead: South American Mycorrhizal Res. Network. Awardee: AfroColombian of the Year; Humberto Maturana award; Carlos Spegazzini Medal. cesar-marin.com

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Reposted by César Marín
César Marín @cmarin.bsky.social · 05/05/2026
Check my keynote talk: “Using Complexity Science and philosophy to assess mycorrhizal cooperation” given at the 4th Global Soil Biodiversity Conference in Victoria, Canada. Deeply honored by this @GSBI invitation. #mycorrhiza #soil #ecology youtu.be/B5jLt0g6ezw?...
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César Marín @cmarin.bsky.social · 19/07/2026
Personal bias. I love mycorrhizas but have learned that our field is too mycorrhizal!
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César Marín @cmarin.bsky.social · 16/06/2026
For @southmycorrhiza I interviewed Prof. @dromius of @TheSainsburyLab - @Cambridge_Uni on his/co-authors @CellReports article: “Mutualist-pathogen co-colonization modulates phosphoinositide signatures at host intracellular interfaces”. #Mycorrhiza youtu.be/FZNncOA_gM0?...
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Reposted by César Marín
Society for the Protection of Underground Networks (SPUN) @spun.earth · 11/06/2026
Global topsoil contains ~110 quadrillion km of fungal threads, roughly one billion times the distance from the Earth to the Sun. A new study in @science.org maps this hidden arbuscular mycorrhizal infrastructure for the first time. Explore the Mycorrhizal Infrastructure Map: buff.ly/PISOj8k
a-hidden-infrastructure.spun.earth
A hidden infrastructure
Mapping Earth’s underground mycorrhizal fungal networks — the hidden infrastructure beneath our feet.
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César Marín @cmarin.bsky.social · 05/05/2026
Check my keynote talk: “Using Complexity Science and philosophy to assess mycorrhizal cooperation” given at the 4th Global Soil Biodiversity Conference in Victoria, Canada. Deeply honored by this @GSBI invitation. #mycorrhiza #soil #ecology youtu.be/B5jLt0g6ezw?...
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César Marín @cmarin.bsky.social · 16/04/2026
New paper out in @riojournal.com “Migration should be a personal choice, not the only one – a reflection on scientific diasporas” How to get a functional scientific diaspora? Here we discuss it! doi.org/10.3897/rio....
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The Global Soil Biodiversity Initiative @thegsbi.bsky.social · 15/04/2026
📣 A huge thank you to our first two keynote speakers, Dr. Marín (@cmarin.bsky.social) and Dr. Jansson, for starting #GSB2026 off strong! Topics ranged from soil microbes as climate solutions to complexity science as a foundation for mycorrhizal research; we could not imagine a stronger start!
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Global Soil Biodiversity Conference 2026 @gsb2026.bsky.social · 14/04/2026
🎤 Our second plenary speaker: Dr. César Marín @cmarin.bsky.social hosted by our own Wim van der Putten
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Walter Andriuzzi @walterandriuzzi.bsky.social · 14/04/2026
Right on time for #GSB2026, soil fauna made it to the cover of Nat Eco Evo (great shot by frankashwood.bsky.social). Attendees who have questions on the journal or papers to pitch, feel free to chat to me at the conference. @thegsbi.bsky.social
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Ricard Solé @ricardsole.bsky.social · 11/04/2026
Do primate brains and social insect colonies make decisions in similar ways? As shown in this @royalsocietypublishing.org paper, both share competing populations that accumulate evidence until a threshold is reached. @jordipinero.bsky.social @drmichaellevin.bsky.social @dornhaus.bsky.social
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International Mycorrhiza Society @mycorrhizaims.bsky.social · 07/04/2026
🎉Celebrating a lifetime of impact in mycorrhizal science We are proud and thrilled to announce Nancy Collins Johnson (Northern Arizona University) as the IMS Eminent Research Award 2026 recipient mycorrhizas.org#awards 👏 Join us in celebrating her at @icom2026.bsky.social
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César Marín @cmarin.bsky.social · 08/04/2026
ust got accepted my 80 peer-reviewed article: “Migration should be a personal choice, not the only one – a reflection on scientific diasporas” on Research Ideas and Outcomes. There we discuss how to get to a functional scientific diaspora.
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Reposted by César Marín
Matthias C. Rillig @mrillig.bsky.social · 30/03/2026
Very happy to have @cmarin.bsky.social give a talk in our lab meeting on multi-level selection. Great talk and interesting discussion.
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César Marín @cmarin.bsky.social · 29/03/2026
Thanks for the nice invite. Had a wonderful time in Bochum learning a lot about Diversity in all dimensions and areas! Now in Berlin some few days.
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New Phytologist @newphyt.bsky.social · 23/03/2026
Balancing mutualism: choice and sanctions in root–microbe symbioses #TansleyReview by Madhavan and Müller @lmueller.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... #plantscience
Nutrient exchange and symbiosis regulation in root nodule symbiosis and arbuscular mycorrhizal symbiosis.
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César Marín @cmarin.bsky.social · 18/03/2026
Out of the 12 press pieces I have seen of our @frontiersin.bsky.social in #Ecology & #Evolution paper “Abundant empirical evidence of multilevel selection revealed by a bibliometric review”, this one by @MSN is the best one! Written by an IA, with human oversight. www.msn.com/en-us/news/t...
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ICOM2026 @icom2026.bsky.social · 17/03/2026
⭐Exhibit at #ICOM2026⭐ 🌏Looking to advertise your company at an international conference that attracts plant and fungal scientists from all over the world? 👀Take a look at our Exhibitor package in the sponsorship prospectus (page 7): tinyurl.com/4axzdyu3 @mycorrhizaims.bsky.social
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César Marín @cmarin.bsky.social · 06/03/2026
In this @frontiersin.bsky.social in #Ecology & #Evolution review we compile 280 studies showing empirical evidence of natural selection occuring at the levels: - Genetic elements - Nuclei - Cells - Clones - Individuals - Groups (demes, colonies, agreggates) - Communities doi.org/10.3389/fevo...
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César Marín @cmarin.bsky.social · 06/03/2026
In this @frontiersin.bsky.social in #Ecology & #Evolution review we compile 280 studies showing empirical evidence of natural selection occuring at the levels: - Genetic elements - Nuclei - Cells - Clones - Individuals - Groups (demes, colonies, agreggates) - Communities doi.org/10.3389/fevo...
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ICOM2026 @icom2026.bsky.social · 05/03/2026
✨A Special Issue of the Journal of Sustainable Agriculture and Environment, linked to #ICOM2026, is now accepting submissions! 🌽The issue will be titled “Mycorrhizas in Ecosystems” 🍄Abstracts due: 30 April 🌻Full articles due: 31 October Submit here: onlinelibrary.wiley.com/page/journal...
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César Marín @cmarin.bsky.social · 04/03/2026
Website under construction! In this website, we will develop the concepts and results of the following scientific article:- Marín, C., Clark, A.B., Philson, C.S., Eldakar, O.T., Wade, M.J. 2026. Abundant empirical evidence of multilevel selection revealed by a bibliometric review. Frontiers in…
genestogaia.org
Website under construction!
In this website, we will develop the concepts and results of the following scientific article:- Marín, C., Clark, A.B., Philson, C.S., Eldakar, O.T., Wade, M.J. 2026. Abundant empirical evidence of multilevel selection revealed by a bibliometric review. Frontiers in Ecology and Evolution 14: 1752597. PDF. DOI: More info at:
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César Marín @cmarin.bsky.social · 04/03/2026
Constanza is my third bachelor thesis student who finished her thesis with the highest grade possible and with a WoS paper published before finishing. Cherry on the cake: already with a permanent job. Couldnt be more proud!
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Reposted by César Marín
Society for the Protection of Underground Networks (SPUN) @spun.earth · 04/03/2026
How an underground fungal map of one of the world’s oldest, slowest-growing rainforest trees can boost the resilience of Earth’s long-term carbon sinks? New paper in Biodiversity and Conservation about our first expedition to the Chilean Coast Range: buff.ly/CumRGpU
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César Marín @cmarin.bsky.social · 03/03/2026
New paper out! Lead by @camilletruong.bsky.social & with @spun.earth #FungiFoundation in Biod Conserv: “Large-diameter trees disproportionately contribute to soil fungal diversity in a coniferous forest with one of oldest living trees on Earth”. @tobykiers.bsky.social doi.org/10.1007/s105...
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César Marín @cmarin.bsky.social · 02/03/2026
3 great news: - We have started our SOCBIO-MAP project fund. by European Space Agency. - Tomorrow a very nice paper in collab/funded by SPUN will appear in Biod. Conserv. We now know about the mycorrhizas of one of the oldest trees in 🌍 - Ill give a talk in Harvard on Wednesday
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Nature Portfolio @natureportfolio.nature.com · 26/02/2026
A study in Nature shows that the single-celled form of a tiny, aquatic organism can turn into a multicellular version by three different routes. The discovery adds insight to the possible origins of multicellular life, suggesting a previously unrecognized degree of flexibility. 🧪
go.nature.com
Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate - Nature
The choanoflagellate Choanoeca flexa forms motile and contractile cell monolayers purely clonally, purely aggregatively or through a combination of both processes depending on environmental conditions.
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Ákos T Kovács @evolvedbiofilm.bsky.social · 26/02/2026
Join us as Assistant/Associate/Full Professor Computational Biology at Institute of Biology Leiden (IBL) / @leidenscience.bsky.social / @unileiden.bsky.social Application deadline on 15 March 2026 👇 careers.universiteitleiden.nl/job/Assistan...
careers.universiteitleiden.nl
Assistant/Associate/Full Professor Computational Biology
Assistant/Associate/Full Professor Computational Biology
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Admirable Women @admirablewomen.bsky.social · 26/02/2026
Two days ago, Dame Anne Pringle was elected Chancellor of the University of St. Andrews in Scotland. She is the first female Chancellor in the university's 600+ year history. #education #highered #AcademicSky #EduSky
news.st-andrews.ac.uk
Dame Anne Pringle elected Chancellor of the University of St Andrews | University of St Andrews news
Dame Anne, a trailblazing diplomat who was formerly British Ambassador to Moscow, won a majority of support in an election also contested by Dame Barbara Woodward, Lord Mark Sedwill, and Lady Alex Walmsley.
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César Marín @cmarin.bsky.social · 21/02/2026
Organisms are not machines. This should be mainstream thought in ecology, Evolution, genetics, physiology, and so on. Sadly it seems like we are not there yet.
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César Marín @cmarin.bsky.social · 20/02/2026
The fact this is not mainstream thought in the biological sciences shows the bad situation we still are in!
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César Marín @cmarin.bsky.social · 19/02/2026
I estimate over 1000 Mycorrhizal Research papers are published each year. It is impossible to keep up! However I try. For @southmycorrhiza please find a list of my Mycorrhizal picks for 2025! Tons of exciting research in ecology, agriculture, Evol., etc! southmycorrhizas.org/reading/febr...
southmycorrhizas.org
February, 2026 – Mycorrhizal picks (2025)
By: César Marín On this new section of our blog, in my capacity of Editor of about seven journals, I am posting what I call: “César Marín’s mycorrhizal picks”, where I list scient…
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César Marín @cmarin.bsky.social · 19/02/2026
Is not often you find good science blogs. This one is as it reflects pretty well our @frontiersin.bsky.social Ecol Evol paper: “Abundant empirical evidence of multilevel selection revealed by a bibliometric review”, from discussing Muir’s poultry work to yeasts! scienceblog.com/evolution-is...
scienceblog.com
Evolution Is Not Just About Survival of the Fittest Individual
In the 1990s, an agricultural scientist named William Muir set out to breed better egg-laying hens. His approach seemed obvious: pick the most productive
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César Marín @cmarin.bsky.social · 18/02/2026
To understand mycorrhizas and mycorrhizal functioning I have been reaching out to colleagues working with very different systems. One of the most toxic features in academia is over-specialization. Otherwise wonderful thinkers become zealots. phys.org/news/2026-02...
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Colin Averill @colinaverill.bsky.social · 17/02/2026
Really enjoyed watching this paper unfold. The idea that selection operates at multiple levels is fascinating, controversial and difficult to test. But not untestable nor untested. César and colleagues show this well!
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César Marín @cmarin.bsky.social · 17/02/2026
Press release by @binghamtonu.bsky.social about our @frontiersin.bsky.social in #Ecology & #Evolution rev: “Abundant empirical evidence of multilevel selection revealed by a bibliometric review”. Natural selection operates from molecules to ecosystems. #MLS www.binghamton.edu/news/story/6...
binghamton.edu
Beyond ’survival’ of the fittest: Evolution works in teams - Binghamton News
Review of scientific studies shows that natural selection operates on multiple levels
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New Phytologist @newphyt.bsky.social · 16/02/2026
New Phytologist's Editor-in-Chief, Maarja Öpik, received the Order of Merit from the Estonian President on Saturday: www.delfi.ee/artikkel/120... Congratulations Maarja!
Maarja Öpik stands next to the President of Estonia, holding her Order of Merit.
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César Marín @cmarin.bsky.social · 15/02/2026
I LOVE this paper by Lisa Lloyd. It makes all the difference in the world to ask first: “Does this trait has a function?” and not only: “What is the function of this trait?”. In current day trait ecology, adaptationism is live and well, unfortunately.
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Manlio De Domenico @manlius.bsky.social · 14/02/2026
85,000 metagenomes reveal Earth’s hidden microbiome network: 40 habitat clusters found to be shaped by hosts and environment. “Generalist” microbes bridge ecosystems, moving genes (including antibiotic resistance) across the planet 🌏🧪🌐🦠 #ComplexSystems www.cell.com/cell/fulltex...
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PlantEvolution 🌱🌾 @plantevolution.bsky.social · 14/02/2026
#transgenerational transmission of a core #microbiome that protects against downy mildew from soil to #phyllosphere Fantastic and important study by @jellespooren.bsky.social @rlberendsen.bsky.social @cornepieterse.bsky.social academic.oup.com/ismej/advanc... #plantscience
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Brent Toderian @brenttoderian.bsky.social · 10/02/2026
“Scientists should stop trying to be neutral and instead embrace their values,”says a group of top climate scientists, including @katharinehayhoe.com. The neutrality myth is harming the reputation of science right when we need it most.” #ClimateCrisis Science isn’t neutral. It’s science.
cbc.ca
Prominent climate scientist argues it's time to ditch the 'myth of neutrality' | CBC Radio
Climate scientist Katharine Hayhoe talks to Bob McDonald about the polarization of science and why she thinks scientists should stop pretending to be neutral when it's our planet at risk.
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Simon Fisher @profsimonfisher.bsky.social · 13/02/2026
“If a single animal can have several different genomes at once, which one is the blueprint? This may not even be the right question to ask...” Intriguing jumping-off point for a superb piece on why our favourite metaphors fail to capture biology; @elisecutts.bsky.social in @pioneerwork.bsky.social 🧪
pioneerworks.org
Myth of the Genetic Blueprint | Broadcast
Life isn't constructed along pre-drawn plans. It grows.
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César Marín @cmarin.bsky.social · 11/02/2026
🧵 🚨 Our new paper is out today in @frontiersin.bsky.social #Ecology and #Evolution. 🎉 🥳 🙌 For decades, many textbooks & papers have claimed that group or multilevel selection lacks empirical evidence. We decided to test that claim. Here’s what we found 👇 doi.org/10.3389/fevo...
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César Marín @cmarin.bsky.social · 11/02/2026
🧵 🚨 Our new paper is out today in @frontiersin.bsky.social #Ecology and #Evolution. 🎉 🥳 🙌 For decades, many textbooks & papers have claimed that group or multilevel selection lacks empirical evidence. We decided to test that claim. Here’s what we found 👇 doi.org/10.3389/fevo...
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Cristian Riquelme @cristianriquelme.com · 10/02/2026
Abundant empirical evidence of multilevel selection revealed by a bibliometric review by @cmarin.bsky.social et al. (2026). doi.org/10.3389/fevo...
Figure 3. Distribution of 280 studies providing empirical support for multilevel selection across study systems and types. (A) In situ studies. (B) Experimental studies. (C) Study systems.
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César Marín @cmarin.bsky.social · 09/02/2026
So nice when two great minds join! For @southmycorrhiza, @bea_Bock from NAU interviews @PedroAntunes from Algoma University, on his @newphyt.bsky.social review: “Fluid mechanics within mycorrhizal networks: exploring concepts, traits, and methodologies”. #Mycorrhiza youtu.be/zqaS6ZBimYA?...
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Ricard Solé @ricardsole.bsky.social · 08/02/2026
Why did consciousness evolve at all? A superb special issue of @royalsocietypublishing.org brings together experts across disciplines to explore the functions of consciousness and why it emerged in some species but not others. @tecumsehfitch.bsky.social royalsocietypublishing.org/rstb/issue/3...
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César Marín @cmarin.bsky.social · 07/02/2026
#ProudAdvisor: my PhD student, Gabriel Peredo, just won an scolarship from the organizers to take part of the World Biodiversity Forum next June in #Davos Gabriel has a unique perspective in Biodiversity as indigenous scientist with vast experience across the Americas.
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Rebecca Watson @skepchick.org · 05/02/2026
Okay, you guys wanted some fun tea on Richard Dawkins? Here you go: one reason he may have gotten super duper angry about me talking about misogyny in atheism skepchick.org/2026/02/epst...
skepchick.org
Epstein Files Reveal How Pathetic Richard Dawkins & Other Men Are
Transcript: Well, it happened again. I’m mentioned in the Epstein files. Again. You probably saw my first video on this topic and you came away thinking that I’ve spent the past decade being as awe…
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César Marín @cmarin.bsky.social · 05/02/2026
Very nice to take part of this nice workshop of @roto-rub.bsky.social in Germany next month.
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César Marín @cmarin.bsky.social · 04/02/2026
In a few days Ill be 35 years old. I have reviewed 300 articles. Is that time well invested? No idea 🙃 (I havent added yet the edited articles to Web of Science. Those are 21, for 5 journals).
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