Matthias C. Rillig
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mrillig.bsky.social
Matthias C. Rillig
@mrillig.bsky.social
Professor, ecology, FU Berlin, own views, book author
Global change, soil, fungi, environment, microplastic, biodiversity 🧪
https://www.youtube.com/@mrillig
https://www.youtube.com/@lifeinthesoil
rilliglab.org
https://matthiasrillig.substack.com
My most popular substack post, my rant on pseudoreplication, has now been read over 5,000 times.

Maybe I should do more rants or more stats/ experimental design topics? 😅

open.substack.com/pub/matthias...
Pseudoreplication in ecological research, and how to avoid it
Let's eradicate pseudoreplication - a rant! :)
open.substack.com
November 26, 2025 at 8:01 AM
Reading in journal club

Roy et al. ISME J
Microbial interactions between climate warming and antimicrobial resistance threaten soil carbon storage and global health

academic.oup.com/ismej/articl...
Microbial interactions between climate warming and antimicrobial resistance threaten soil carbon storage and global health
Abstract. Anthropogenic activities are impacting the environment in ways that may intersect and have compounding effects. In soil, the spread of antibiotic
academic.oup.com
November 24, 2025 at 8:41 AM
This week's newsletter:

Artists becoming involved in the scientific process: at the experimental design stage

@artlaboratoryb.bsky.social
matthiasrillig.substack.com/p/artists-be...
Artists becoming involved in the scientific process: at the experimental design stage
A new insight...at least for me
matthiasrillig.substack.com
November 20, 2025 at 5:15 PM
Ein Interview mit mir in der "NZZ am Sonntag" zum Buch 'Mutter Erde'
(D, $)

«Der Boden und seine Bewohner werden völlig unterschätzt»

www.nzz.ch/wissenschaft...
Ein Blick unter die Erde: «Der Boden und seine Einwohner werden völlig unterschätzt»
Unsere Böden speicherten mehr Kohlenstoff, als in allen Pflanzen und in der Atmosphäre enthalten sei, sagt Matthias Rillig. Allzu oft werden sie heillos übernutzt oder sind verseucht. Doch der Biologe...
www.nzz.ch
November 17, 2025 at 4:49 PM
Reading in journal club

Six actions for ecologists in times of planetary crisis

www.nature.com/articles/s41...
Six actions for ecologists in times of planetary crisis - Nature Ecology & Evolution
Nature Ecology & Evolution - Six actions for ecologists in times of planetary crisis
www.nature.com
November 17, 2025 at 9:10 AM
New paper out with Zimeng Wang

Acid and antibiotic stress suppresses soil microbial carbon use efficiency via fungal proliferation: Mechanistic insights from microbial community dynamics

www.sciencedirect.com/science/arti...
Acid and antibiotic stress suppresses soil microbial carbon use efficiency via fungal proliferation: Mechanistic insights from microbial community dynamics
Despite extensive research on environmental implications of acid and antibiotic stresses in soil systems, their effects on the transformation of organ…
www.sciencedirect.com
November 15, 2025 at 8:47 PM
ICYMI

Friendship in academia. One of my most popular newsletters this year.

matthiasrillig.substack.com/p/friendship...
Friendship in academia
Not often talked about, but maybe one of the best things of life in academia?
matthiasrillig.substack.com
November 15, 2025 at 8:31 PM
Our last lab meeting was on the AI scientist Kosmos. Here are some of the thoughts from the perspective of the environmental sciences/ ecology.

What is your take on all this?

matthiasrillig.substack.com/p/thinking-a...
Thinking about the AI scientist....
...and how it could be used in the environmental sciences.
matthiasrillig.substack.com
November 14, 2025 at 7:02 PM
Reposted by Matthias C. Rillig
Quick reminder that the upcoming revision of the REACH Regulation offers an opportunity to improve the protection of human health & the environment. Simply by acknowledging the fact that we all are routinely exposed to complex chemical mixtures.

New policy brief out in SCIENCE @science.org
Include a mixture allocation factor to improve EU chemical risk management
Revision of the REACH chemical regulation should enable more realistic understanding and management
www.doi.org
November 13, 2025 at 7:25 PM
Thanks to everybody who finds our lab's work interesting enough to cite it!

I'm proud to be #HighlyCited in three different fields this year. My awesome lab and collaborators made it possible, thanks so much!
November 13, 2025 at 7:14 PM
Paper just accepted:

Acid and antibiotic stress suppresses soil microbial carbon use efficiency via fungal proliferation: mechanistic insights from microbial community dynamics.

Another collab with friends at Fudan Univ (different ones)....
Will share details once available
November 12, 2025 at 9:50 PM
Paper just accepted:

Multiple global change stressors boost soil greenhouse gas emissions worldwide

Will share details once available; a collaboration with friends at Fudan University & elsewhere
November 12, 2025 at 9:19 PM
Paper just accepted:

Microplastic and drought influence the positive effect of plant diversity on plant biomass production

A collaboration among former 3 postdocs in my group. Will share details once available.
November 12, 2025 at 1:17 PM
Paper just online:

Xiang et al.
Global Meta-Analysis Integrated with Machine Learning Assesses Context-Dependent Microplastic Effects on Soil Microbial Biomass Carbon and Nitrogen | Environmental Science & Technology

pubs.acs.org/doi/10.1021/...
Global Meta-Analysis Integrated with Machine Learning Assesses Context-Dependent Microplastic Effects on Soil Microbial Biomass Carbon and Nitrogen
Microplastics (MPs) in soil can paradoxically stimulate microbial biomass in a highly context-dependent manner, potentially inducing decomposition and affecting carbon and nitrogen cycles. We conducted a global meta-analysis with 90 studies (710 observations of microbial biomass carbon (MBC), 354 of microbial biomass nitrogen (MBN)) integrated with machine learning to quantify MPs effects on soil microbial biomass. Field studies showed no significant effects, contrasting with controlled experiments where MPs increased MBC by 9.6% (95% CI: 7.2–11.9%) and MBN by 10.4% (6.8–14.0%). Biodegradable plastics (PBAT, PLA) induced stronger effects (36.1–67.6%) than conventional polymers (PE, PP, PS, PVC). Temperature emerged as the dominant factor, with a contrasting MPs effect on MBC (positive) and MBN (negative) at higher temperatures, suggesting potential decoupling of carbon and nitrogen cycles under warming conditions. Machine learning models (XGBoost, R2 = 0.62) significantly outperformed linear regressions (R2 = 0.02–0.05), revealing nonlinear responses and threshold effects. Stimulatory effects were most significant for medium-sized MPs (30–90 μm), at high concentrations (>10 g kg–1), and in soils with intermediate fertility, highlighting context-dependent risks to soil carbon and nitrogen cycling.
pubs.acs.org
November 10, 2025 at 9:44 PM
Paper just accepted:

Number and dissimilarity of soil amendments influence soil properties and plant communities in a greenhouse experiment

Will share open-access link once available
November 10, 2025 at 9:33 PM
Paper just out @newphyt.bsky.social

Ajaz et al.
Maximum entropy networks show that plant–arbuscular mycorrhizal fungi associations are anti-nested and modular

w/ Tancredi Caruso

nph.onlinelibrary.wiley.com/doi/10.1111/...
Maximum entropy networks show that plant–arbuscular mycorrhizal fungi associations are anti‐nested and modular
There is uncertainty in whether there is a common pattern of nestedness and modularity in plant–arbuscular mycorrhizal (AM) fungi associations, partly because of limitations arising from the use of ...
nph.onlinelibrary.wiley.com
November 10, 2025 at 1:56 PM
Reading in journal club:

Mitchener et al.
Kosmos: An AI Scientist for Autonomous Discovery

arxiv.org/abs/2511.02824
Kosmos: An AI Scientist for Autonomous Discovery
Data-driven scientific discovery requires iterative cycles of literature search, hypothesis generation, and data analysis. Substantial progress has been made towards AI agents that can automate scient...
arxiv.org
November 10, 2025 at 7:17 AM
Enjoyed the presentation 'Chrysalis. Artists in Labs' today as part of Berlin Science Week.

Up on the stage also the lab's @alvarordr.bsky.social and artist Helena Nikonole, who gave a presentation on their planned interaction.

Organized by our friends at Art Laboratory Berlin.
November 8, 2025 at 5:24 PM
My new substack newsletter for this week ponders 'tiny experiments' within universities to explore new ways of research, teaching and collaboration.

Could this work? do you know of any good examples?

matthiasrillig.substack.com/p/tiny-exper...
Tiny experiments within universities?
Can we establish a culture of experiments to try out new forms of collaboration, research, and teaching?
matthiasrillig.substack.com
November 8, 2025 at 5:13 PM
As a part of Berlin Science week, I look forward to the event "Chrysalis. Artists in Labs", also featuring our lab's @alvarordr.bsky.social and our artist-in-residence Helena Nikonole

berlinscienceweek.com/programme/ch...
CHRYSALIS. ARTISTS IN LABS
During 2025 and 2026, Art Laboratory Berlin is unfolding the new innovative project CHRYSALIS. ARTISTS IN LABS with an interdisciplinary exchange between art and science in Berlin science laboratories...
berlinscienceweek.com
November 4, 2025 at 3:04 PM
Somewhat troubling:

Suzgun et al. in Nature Machine Intelligence

Language models cannot reliably distinguish belief from knowledge and fact

www.nature.com/articles/s42...
Language models cannot reliably distinguish belief from knowledge and fact - Nature Machine Intelligence
Suzgun et al. find that current large language models cannot reliably distinguish between belief, knowledge and fact, raising concerns for their use in healthcare, law and journalism, where such disti...
www.nature.com
November 4, 2025 at 12:17 PM
The world’s first plastics treaty is in crisis: can it be salvaged? www.nature.com/articles/d41...
The world’s first plastics treaty is in crisis: can it be salvaged?
Hopes of securing a United Nations treaty on plastics pollution are fading after the final round of negotiations ended without an agreement.
www.nature.com
November 4, 2025 at 10:59 AM
Reading in journal club:

Developing a predictive science of the biosphere requires the integration of scientific cultures

@bjenquist.bsky.social et al.
www.pnas.org/doi/full/10....
Developing a predictive science of the biosphere requires the integration of scientific cultures | PNAS
Increasing the speed of scientific progress is urgently needed to address the many challenges associated with the biosphere in the Anthropocene. Co...
www.pnas.org
November 3, 2025 at 1:33 PM