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Matías Arim

@matias-arim.bsky.social
37 followers 51 following 7 posts

Ecology, biodiversity, and metacommunities. Working in the bridge between theoretical and empirical studies. Universidad de la República, Uruguay.

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Reposted by Matías Arim
Brian J. Enquist @bjenquist.bsky.social · 28/07/2026
Enjoyed working with @veritasium.bsky.social on this video on scaling and the hidden math that governs life. A nice introduction to the pervasivness of scaling in biology and an introduction to #MetabolicScalingTheory youtu.be/tL9Lw250spc?... 🧪🌾🌐
youtu.be
Why does every mammal get 1 billion heartbeats in their life?
YouTube video by Veritasium
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Oikos @oikosjournal.bsky.social · 27/05/2026
🗺️📈Spatial heterogeneity modulates dispersal effects on metapopulation abundance: insights from a graphical approach vist.ly/55nea #DispersalEffect #Metapopulations #ConsumerResourceSystems #SpatialHeterogeneity
Illustration depicting resource and consumer interactions in ecological patches, highlighting net outflow and top-down/bottom-up dynamics.
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Jens-Christian Svenning @jcsvenning.bsky.social · 28/05/2026
More information and application: international.au.dk/about/profil... Please share widely!
international.au.dk
2-year postdoc in large-herbivore ecology, trophic rewilding, and novel ecosystems - Vacancy at Aarhus University
Vacancy at Department of Biology - Ecoinformatics and Biodiversity, Aarhus University
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Journal of Animal Ecology @animalecology.bsky.social · 28/05/2026
New research show biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities🌍 🐟️ 📈 🔎 Read more: buff.ly/9RvuSYJ
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Matías Arim @matias-arim.bsky.social · 24/04/2026
Congratulations to the PhD Veronica Pinelli! Chance, necessity, and ecosystem functioning.
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Matías Arim @matias-arim.bsky.social · 23/04/2026
Advancing the role of trait matching and species abundances on the modular organization of food webs and occurrence networks doi.org/10.1111/1365...
doi.org
On traits matching and the modular organization of food web and occurrence networks
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self-organize and highlight...
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Matías Arim @matias-arim.bsky.social · 23/04/2026
The spatial paths in an early invasion of bullfrogs is determined by well-connected but intermediate abundance populations. Lessons from a long-term monitoring of a pondscape invasion. doi.org/10.1111/1365...
doi.org
Long‐term monitoring reveals how pondscape connectivity shapes the early spread of a biological invasion
Synthesis and applications. Our results show that invasion risk emerges from the interaction between landscape connectivity and local population demography. For invasive species with complex life cyc...
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Matías Arim @matias-arim.bsky.social · 23/04/2026
Connectivity can propagate local impacts of pollutants to the metacommunity level by promoting pollutant-tolerant species or attenuate impacts by a rescue effect from less impacted communities when pollutant produce a general reduction in community abundance. doi.org/10.1111/1365...
doi.org
Metacommunity dispersal amplifies or attenuates pollutant impacts on biodiversity
The results highlight key features for the assessment of pollutants risks to biodiversity. Landscape connectivity, species dispersal capacities, trait-mediated shifts in competition, and reduction in...
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Matías Arim @matias-arim.bsky.social · 23/04/2026
Metacommunity mechanisms in restoration ecology. Large restorations with homogeneous habitat can magnify competitive differences at the landscape level; degrading coexistence conditions. Understanding the final effects of local interventions require a landscape perspective. doi.org/10.1002/oik....
doi.org
Why adding habitat can destabilize species coexistence – consequences to restoration
In the context of the looming biodiversity crisis, adding patches of habitat has been proposed as a restoration strategy in several ecosystems. However, these interventions rarely mimic the condition...
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Nordic Society Oikos @nordicoikos.bsky.social · 21/04/2026
Missed the deadline? We’ve got good news! The abstract submission deadline for this year’s NSO-GfÖ Conference has been extended until 30th April! Join us at one of Europe’s largest ecology conferences—submit your abstract by 30 April 2026 here: 👉 vist.ly/4z76b #NSO2026 #gfoe2026
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Stéphanie Gascón @stephi-gascon.bsky.social · 12/02/2026
We’ve loved having Dr. Matias Arim with us this week! 🙌 Super inspiring visit, great chats about what we’ve done so far #funMETANET and what’s coming next🚀... and thanks for jumping in to help with the field sampling too 😉🌿 @greco-udg.bsky.social @iea-udg.bsky.social
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Nature @nature.com · 12/09/2025
Young Academies give a voice to and represent the interests of young scientists in academia, helping them to be heard by national governments and wider society go.nature.com/4nr8SNh
go.nature.com
Why we launched Denmark’s second Young Academy (and what’s different about it)
YATSI aims to represent scientists based in academia and in industry, and to build bridges between the two sectors.
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constizo.bsky.social @constizo.bsky.social · 12/09/2025
Our new study in @science.org shows that over half of forests have become more fragmented since 2000, threatening biodiversity and climate. Brilliantly led by @yibiaozou.bsky.social as part of his PhD — and a huge team effort from @crowtherlab.bsky.social 👏 doi.org/10.1126/scie...
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American Naturalist / ASN 🐌 @asn-amnat.bsky.social · 12/09/2025
ICYMI: AmNat Editor-in-Chief Volker Rudolf speaks out: "Best Publishing Practices and Open Access Options at The American Naturalist" Read now! www.journals.uchicago.edu/doi/10.1086/...
journals.uchicago.edu
Best Publishing Practices and Open Access Options at The American Naturalist | The American Naturalist: Vol 206, No 2
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Jorge Peña 🇵🇸 @jorgeapenas.bsky.social · 12/09/2025
"Biologists often become alienated from mathematics at an early stage in their career under the misconception [...] that biology is not a mathematical science. The claim is also often made that mathematical theory is overly simplistic, ignoring the [...] complex nature of biological systems." 1/
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Brian J. Enquist @bjenquist.bsky.social · 14/09/2025
In Tucson!
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Sean Carroll @seanmcarroll.bsky.social · 09/09/2025
Good insight here about interdisciplinarity. It's not just getting people from the right fields in the same room; it's about getting the right people, those who are honestly open to learning about the questions and methods of other fields. (Something @sfiscience.bsky.social is so good at.)
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Sean Carroll @seanmcarroll.bsky.social · 28/08/2025
Welcome new colleagues!
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Santa Fe Institute @sfiscience.bsky.social · 11/08/2025
Collaborate with researchers globally. Chart your transdisciplinary path. Apply to SFI's 2026 Complexity Postdoctoral Fellowships. Competitive pay, research funds, and generous benefits to become a leader in transdisciplinary research. Deadline: Oct 1, 2025 Apply: santafe.edu/sfifellowship
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Martin A. Nuñez @martin-nunez.bsky.social · 12/08/2025
🚨Big news🚨 A Pocket Guide to Scientific Writing and Publishing is out🎉 This is the book I wish I’d had 20 years ago — short, practical, and designed to help researchers write & get their papers published I hope it helps many Please share with anyone who might benefit! 👉 mybook.to/ScienceGuide
cover of a "pocket guide to scientific writing and publishing"
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Brian J. Enquist @bjenquist.bsky.social · 08/08/2025
E.P.A. to Stop Updating Popular Database After Lead Scientist Criticized Trump www.nytimes.com/2025/08/08/c...
nytimes.com
E.P.A. to Stop Updating Popular Database After Lead Scientist Criticized Trump
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Nature @nature.com · 09/08/2025
The Royal Society is joining a growing wave of scientific publishers that are implementing the 'subscribe to open' model go.nature.com/3UPt7b3
go.nature.com
UK Royal Society adopts ‘subscribe to open’ publishing model
Nature - Eight of its journals will publish papers open-access each year they earn sufficient library revenue.
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Nature @nature.com · 09/08/2025
Glow-in-the-dark marsupials, fashionable science, and cyborg jellyfish Check out July's best science images, chosen by Nature's photo team 📸 go.nature.com/4m5xF9j
go.nature.com
Glow-in-the-dark marsupial shows off its luminous fur — July’s best science images
The month’s sharpest science shots, selected by Nature’s photo team.
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Andy Gonzalez @bio-diverse.bsky.social · 17/03/2025
How do human drivers shape ecosystem services and their interactions? The answer impacts policy and management. We used Bayesian Belief Networks (BBN) to model ecosystem service interactions as a causal network for data from many Quebec landscapes www.sciencedirect.com/science/arti...
Using linear regression, based on data from 318 soil landscapes, if we assume that human activity intensity does not influence the relationship between livestock provisioning and bird-watching recreation (a), then we might conclude that there is no effect between these two services. However, when controlling for human activity intensity (b), a direct trade-off is found because human activity intensity positively influences both services.
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EvolDir @evoldir.bsky.social · 04/03/2025
Join the second Evolutionary Rescue workshop at the Max Planck Institute, Plon, Germany from June 30 to July 3, 2024. Registration is free until March 15. More info: workshops.evolbio.mpg.de/event/128. #workshop
workshops.evolbio.mpg.de
Evolutionary Rescue - bridging the gap between theory and experiments
IMPORTANT DATES Workshop: 30 June – 3 July, 2025 The workshop starts on June 30 at 5pm and ends on July 3 in the evening. Pre-school: June 29 (afternoon) & June 30, 2025 Registration deadline: 15 March, 2025 Notification of acceptance: 22 March, 2025 OVERVIEW Evolutionary rescue is a topic of great interest, from medicine to agriculture to conservation, and from natural observations to experiments to theory. In 2023, we organised a workshop on ‘Mathematical models of evolutionary rescue’. In...
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Michael Hochberg @mkhochb.bsky.social · 06/12/2024
A preview of Part 1 of my book "An Editor's Guide to Writing and Publishing Science" is now freely available on Google Books shorturl.at/0xo93 If you like this preview, consider buying the book. If you can't afford the book, then contact me and I'll send it to you for free.
shorturl.at
An Editor's Guide to Writing and Publishing Science
A good research paper is more than just a clear, concise, scientific expose. It is a document that needs to go beyond the science to attract attention. There are both strict and less definable norms f...
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Joshua Weitz @joshuasweitz.bsky.social · 09/01/2025
Exciting opportunity for folks to work/live in Santa Fe at SFI as resident faculty, 12 month positions, 5 year terms, open at all ranks. Applications just opened & accepted through 3/28/25: apply-sfi.smapply.org/prog/SFI2025...
apply-sfi.smapply.org
SFI 2025 Resident Faculty Search - Santa Fe Institute
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Gigi Gronvall @ggronvall.bsky.social · 16/02/2025
The HPV vaccine (Gardasil) is literally life-saving. Cervical cancer cases have dropped to zero in Scotland because of this vaccine. Men also benefit, because HPV also causes penile cancer. Protect your kids-- get them vaccinated. www.bbc.com/news/article...
bbc.com
No cervical cancer cases in fully HPV-vaccinated women in Scotland
A study published by Public Health Scotland finds that the HPV vaccine is "highly effective".
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Jon Norberg @jonnorberg.bsky.social · 17/02/2025
Important for SDM’ and climate impact on ecosystems
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Annie Leymarie @annieleymarie.bsky.social · 14/02/2025
"Megafauna disappeared twice, firstly during the Late Pleistocene extinctions and secondly from our collective memory. (...) Understanding the extent of the consequences of the Late Pleistocene extinctions is integral for moving community ecology forward." Timeline of when "the giants" went missing:
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Bert van der Veen @vdveenb.bsky.social · 14/02/2025
Don't forget to apply to this summer school on model-based multivariate analysis for ecologists! If you have any doubts about applying, or questions, I'm happy to have a chat.
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Daniel Bolnick @danielbolnick.bsky.social · 06/02/2025
I usually reserve this account for my personal views; but today I want to represent my position as President of @asn-amnat.bsky.social to post a message that will shortly go out to the membership of the American Society of Naturalists from the ASN Executive Council
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Matías Arim @matias-arim.bsky.social · 04/02/2025
Sync in richness decreases with spatial, environmental, and functional distance; but sync in biomass only is induced by functional similarity. The decrease in stability with sync indicates that preserving large and heterogeneous ecosystems is essential to ensure their stability, pls repost!
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Ethan White @ethanwhite.weecology.org · 31/01/2025
If you're looking for a PhD position studying ecological forecasting - the awesome @njclark.bsky.social is looking for students to join his group in Australia. Nick is both an amazing scientist and a fantastic person. 13/10 - would apply myself if... <stops posting to work on application> 🌏🧪
ecogambler.netlify.app
Research opportunities | GAMbler
If you are interested in joining my research group, or for any other enquiries, please contact me. You can find my most up-to-date contact details on my [University of Queensland page](https://about.u...
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Melanie Mitchell @melaniemitchell.bsky.social · 24/01/2025
Open postdoc position at @sfiscience.bsky.social to work with my fantastic colleagues on "emergent engineering": santafeinstitute.teamtailor.com/jobs/5463514...
santafeinstitute.teamtailor.com
Postdoctoral Research Fellowship: Emergent Engineering - Santa Fe Institute
SFI seeks applicants for a postdoctoral fellow in a multidisciplinary research program on Emergent Engineering.
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Ricard Solé @ricardsole.bsky.social · 18/01/2025
After many years of teaching Bioengineering courses at @upf.edu, we recorded our blackboard lectures on Biological Design and Mathematical Biomodelling with a Complex Systems + Evolutionary perspective. Check our YouTube channel @jordipinero.bsky.social
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Laura Dee @lauradee.bsky.social · 13/12/2024
Foundations and future directions for causal inference in ecological research, forthcoming w/ @katherinesiegel.bsky.social: tinyurl.com/4mm57zzd. We wrote it based on our experience teaching causal inference to ecologists w/ some stuff we wish other papers had reviewed to share w/ the students 1/n
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Laura Dee @lauradee.bsky.social · 20/01/2025
Very excited this paper is now out in Ecology Letters onlinelibrary.wiley.com/doi/epdf/10.... #causalsky
onlinelibrary.wiley.com
Foundations and Future Directions for Causal Inference in Ecological Research
You have to enable JavaScript in your browser's settings in order to use the eReader.
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Andy Gonzalez @bio-diverse.bsky.social · 10/01/2025
25 yrs ago 😳 we found by experiment that the "inflationary effect" of env. variability allows sink populations to persist In this new paper, we show its generality & applied value: Metapopulations, the Inflationary Effect, & Consequences for Public Health👇 www.journals.uchicago.edu/eprint/EKIBA...
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gavin jones @ecologyofgavin.bsky.social · 07/01/2025
How are different facets of biodiversity changing? A new study looks across 2432 time series and 90 years finding no general trend in *functional diversity* of birds and mammals. By @karinorman.bsky.social @cboettig.bsky.social and Perry de Valpine onlinelibrary.wiley.com/doi/epdf/10....
onlinelibrary.wiley.com
No General Trend in Functional Diversity in Bird and Mammal Communities Despite Compositional Change
Aim Despite unprecedented environmental change due to anthropogenic pressure, recent work has found increasing dissimilarity due to turnover but no overall trend in species diversity through time at...
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BES Macro @besmacro.bsky.social · 10/01/2025
Hello world! We are BES Macro, the British Ecological Society Macroecology and Macroevolution Special Interest Group. We're probably going to be pretty quiet on here, but if you tag us in things of interest to our members, we'll gladly re-post!
image of the earth (Africa most prominently) from space
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Gigi Gronvall @ggronvall.bsky.social · 30/12/2024
Moving article by @aktange.bsky.social — “In the first half of the 19th century, between 40% and 50% of children in the U.S. didn’t live past the age of 5. …But the collective pain of a high child mortality rate was eradicated not by time, but by effort.” theconversation.com/infectious-d...
theconversation.com
Infectious diseases killed Victorian children at alarming rates — their novels highlight the fragility of public health today
Between 40% and 50% of children didn’t live past 5 in the US during the 19th century. Popular authors like Charles Dickens documented the common but no less gutting grief of losing a child.
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Jens-Christian Svenning @jcsvenning.bsky.social · 30/12/2024
Discussion on de-extinction in Financial Times - happy to have contributed (albeit in very abbreviated format)🦣🐘🧬 www.ft.com/content/0e27... #deextinction #extinction #megafauna #colossal #biotech
ft.com
The age of de-extinction: should we bring back the woolly mammoth?
[FREE TO READ] Species resurrection is nearing reality — it may also be distracting us from saving animals on the brink
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Santa Fe Institute @sfiscience.bsky.social · 20/12/2024
Undergraduate Complexity Research (Jun 1 - Aug 9) — apply by Jan 14 Complex Systems Summer School (Jun 8 - Jul 4) — apply by Jan 28 Graduate Workshop in Computational Social Science Modeling & Complexity (Jun 22 - Jul 4) — apply by Feb 27
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Journal of Ecology @journalofecology.bsky.social · 21/12/2024
A frugivorous bird's eye-view of Pleistocene landscapes: the way #birds disperse #seeds in fragmented anthropogenic landscapes is congruent with an ecological & evolutionary history with open vegetation created & maintained by megaherbivores besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com
Avian seed dispersal out of the forests: A view through the lens of Pleistocene landscapes
Many European woody species are light-demanding and fail to regenerate in the shaded interiors of temperate forests. Most of these species are dispersed by frugivorous and seed-caching birds. The spa....
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Andy Gonzalez @bio-diverse.bsky.social · 13/12/2024
If I was 25 yrs younger…I would apply for this fantastic postdoc! 👇
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Brian J. Enquist @bjenquist.bsky.social · 07/12/2024
An important review - The ecology of plant extinctions - "Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change & show that predictions of massive climate-driven extinctions later this century are plausible" www.sciencedirect.com/science/arti... 🌾🌎🧪🌐
Image of the first page and abstract of the paper "The ecology of plant extinctions
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https://doi.org/10.1016/j.tree.2024.11.007
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Highlights
The fossil record suggests that climate change was the major driver of plant extinctions and regional extirpations from the Pliocene until recently, when anthropogenic habitat loss became dominant.
Known recent plant extinctions are disproportionately few in comparison with well-studied animal taxa, but many more species are probably committed to inevitable extinction unless given targeted support.
Recent warm-edge extirpations demonstrate the growing impact of anthropogenic climate change and show that predictions of massive climate-driven extinctions later this century are plausible.
The proximate causes for population extirpations are still rarely known but are likely to be highly varied and both species and location specific."
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Dustin Marshall @djmmeeg.bsky.social · 07/11/2024
I wrote (ranted) on experimental design as I was frustrated as an editor at how little guidance students were getting. I underestimated the interest in the issue: it has been downloaded 10,000+ times! Clearly it’s something we need to be talking about more. onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Principles of experimental design for ecology and evolution
Here I argue that we do not discuss experimental design, often until it is too late. This editorial seeks to begin a conversation about how and where to replicate appropriately.
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Florian Altermatt @florianaltermatt.bsky.social · 02/12/2024
Just published in @asn-amnat.bsky.social: #Resource flow #network structure drives #Metaecosystem function. 🌍 🌐 🟦↔️🟩 www.journals.uchicago.edu/doi/abs/10.1... We investigate how spatial structure of larger resource flow networks influences #ecosystem function at metaecosystem scales. 🧵1/3
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