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Ashkaan K. Fahimipour

@akfbio.bsky.social
614 followers 951 following 70 posts

Theoretical ecologist, Asst. Professor running the www.ecoNet.works Lab 🌊 Florida Atlantic University

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Ashkaan K. Fahimipour @akfbio.bsky.social · 06/10/2026
Don't tell my anyone how much Yu-Gi-Oh cards make up the economic input of my house
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Reposted by Ashkaan K. Fahimipour
Michael Hickerson @hickerlab.bsky.social · 01/10/2026
How much of the tree of life did you eat? Phylodiet scores a meal by phylogenetic diversity: type what you ate and it builds the dated tree of the organisms in it, from ~3,300 edible eukaryotes, back 2 billion years. Last night's dinner, below. 🧵 mjhickerson.github.io/phylodiet/app/phylodiet.html
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Ashkaan K. Fahimipour @akfbio.bsky.social · 22/09/2026
Editorial board is a stacked ecologist roster
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Ashkaan K. Fahimipour @akfbio.bsky.social · 19/09/2026
👀
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Dan Garisto @dangaristo.bsky.social · 09/09/2026
Penultimate? FY26 NSF grantmaking update One month ago (8/4) New grants: 4310/7761 — 55.5% of avg. Obligations: 4.10/5.08 billion — 80.7% of avg. Now (9/7) New grants: 6,144/10,857 — 67% of avg.* Obligations: 5.97/7.49 billion — 80% of avg. *avg. from 21–24 grantwitness.org/nsf/analyses...
grantwitness.org
Agency Pulse: Grantmaking at NSF
An independent, up-to-date, grant-level record of federal science funding disruptions in the United States.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/08/2026
Neat result, very consistent with some of our work in deep RL foraging: www.biorxiv.org/content/10.6...
biorxiv.org
Collective learning and manifold behaviors in predator groups
Collective foraging in animal groups often relies on behavioral diversity, with individuals adopting different, sometimes complementary roles during shared tasks. However, most theoretical models pred...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 29/08/2026
Still time to apply!
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Blue the Science Dude @science-dude.bsky.social · 21/08/2026
NSF set to issue lowest number of new grants in four decades. $1 billion being withheld. So much for my grant application.🧪 www.nature.com/articles/d41...
nature.com
Exclusive: NSF set to issue lowest number of new grants in four decades
The US science-funding agency is withholding $1 billion of its budget so that the money can go to a special White House project.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 21/08/2026
Very cool looking preprint (www.biorxiv.org/content/10.6...)! And extra cool to me since it seems some of our earlier theoretical predictions are consistent with their experimental results (doi.org/10.1098/rsif...).
biorxiv.org
Adaptive benefits of motility in cross-feeding mutualisms
Cross-feeding mutualisms, in which partner species exchange essential metabolites, are ubiquitous in microbial communities. In spatially structured environments, motility can improve access to partner...
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Reposted by Ashkaan K. Fahimipour
Dan Garisto @dangaristo.bsky.social · 17/08/2026
NSF releases some NOFOs for some directorates. Staff say they've been held up at OSTP for a while.
nsf.gov
August 2026 Notices of Funding Opportunity for Foundational Research
Learn about new NSF funding opportunities prioritizing foundational research across the sciences and engineering.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 15/08/2026
Looks interesting 👀
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Ashkaan K. Fahimipour @akfbio.bsky.social · 10/08/2026
Theoretical ecology is awesome because you just have a dream one night and then wake up and do some calculations from like Calc 2, and then a paper kind of falls out of you.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 05/08/2026
I'd be grateful if you could circulate to good students: I'm recruiting PhD students for Fall '27 in the areas of species interactions and animal behavior. Ad here - jobs.rwfm.tamu.edu/view-job/?id...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 03/08/2026
Very excited to welcome 2 (!!) new postdocs to the lab this month: www.econet.works/people
econet.works
ecoNetworks - People
Meet the ecoNetworks Lab
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Ashkaan K. Fahimipour @akfbio.bsky.social · 27/07/2026
This paper looks impressive, also gives solid evidence for reactivity in real food webs: www.biorxiv.org/content/10.6...
biorxiv.org
Warming amplifies short-term responses to disturbance in lake food webs
Ecological communities can exhibit transient amplification after disturbance even if asymptotically stable, yet how environmental change reshapes these short-term responses in real food webs remains u...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 23/07/2026
This looks awesome, can't wait to read
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Ashkaan K. Fahimipour @akfbio.bsky.social · 17/07/2026
So cool, would love to someday apply this in our aquatic mesocosm experiments!
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Ashkaan K. Fahimipour @akfbio.bsky.social · 27/06/2026
Oh
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Jeffrey Mervis @policyhound.bsky.social · 22/06/2026
Been wondering why NSF isn't spending most of its FY26 appropriation? A $1.5B tech initiative may be the reason. And big cuts to hundreds of research programs could be just the beginning of the bad news. www.science.org/content/arti...
science.org
Exclusive: NSF slashes research programs to support new tech initiative, insiders say
Unexpected shift in funds has meant sharp drop in grants this fiscal year
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nbes @nbes.bsky.social · 18/06/2026
Our paper with @eplantec.bsky.social was accepted at @alifeconf.bsky.social How does criticality move from agents to populations? We study how near-critical dynamics inside individual agents shape collective dynamics at the population scale. arxiv.org/pdf/2605.01818
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Noam Ross @noamross.net · 27/05/2026
The National Science Foundation is terminating and suspending grants again, and at Grant Witness we need you to help to track them! 🧪 We can only identify research being suppressed by under-the-radar suspensions directly from researchers. Please report! grant-witness.us/posts/2026-0... #NSF
grant-witness.us
New Grant Disruptions at NSF - We Need Your Help to Report! – Grant Witness
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Ashkaan K. Fahimipour @akfbio.bsky.social · 25/05/2026
I would have written a paper for Science instead of a post here
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Ashkaan K. Fahimipour @akfbio.bsky.social · 24/05/2026
So cool!!!
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Ashkaan K. Fahimipour @akfbio.bsky.social · 23/05/2026
Scraped Wiki with HTTP.jl
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Ashkaan K. Fahimipour @akfbio.bsky.social · 23/05/2026
The mystery continues
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Ashkaan K. Fahimipour @akfbio.bsky.social · 22/05/2026
Probably a great guess
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Ashkaan K. Fahimipour @akfbio.bsky.social · 22/05/2026
Greatest deviants tend to be venomous species, who have all that extra medical text.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 22/05/2026
It's even flat for some taxa, like the spiny lizards in yellow.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 22/05/2026
Reptiles with longer Wikipedia pages tend to be bigger. The relationship is a power law with exponent = 0.85. I guess humans really like writing about big lizards? The longest article is the Komodo Dragon.
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Reposted by Ashkaan K. Fahimipour
Nathan Kalman-Lamb @nkalamb.bsky.social · 21/05/2026
UC Berkeley Law creates new AI policy that bans AI for "conceptualizing, outlining, drafting, revising, translating, or editing any work submitted for credit" or exams because "thinking remains the sine qua non of good lawyering (and of a quality legal education)." That's what I'm talking about.
Rule:
The use of AI is prohibited for aid in conceptualizing, outlining, drafting, revising,
translating, or editing any work submitted for credit. AI use is prohibited for any use for
any purpose in any exam situation. Students may not upload course
materials—including assignments, readings, slides, class recordings, or other class
content—into generative AI systems. AI can be used for research on papers ONLY for the
limited purpose of identifying sources, such as cases, statutes, or secondary sources.
Students are responsible for the accuracy of their research and all other aspects of their
submitted work. Citations to sources that do not exist will raise a presumption of
prohibited AI use
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Oded Rechavi @odedrechavi.bsky.social · 15/05/2026
90% of grant progress reports
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John Tuthill @tuthill.bsky.social · 04/05/2026
New preprint: Whole-body 3D kinematics of freely behaving 𝐷𝑟𝑜𝑠𝑜𝑝ℎ𝑖𝑙𝑎 New tech from @blobology.bsky.social & others at @hhmijanelia.bsky.social, which @ispizua.bsky.social and @elliottabe.bsky.social used to gain insight into 3D structure of locomotion & courtship www.biorxiv.org/content/10.6...
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Reposted by Ashkaan K. Fahimipour
Justin Yeakel 🦣🐆 @jdyeakel.bsky.social · 04/05/2026
Super excited to share this new paper in Ecology, where we explore the bioenergetic trade-offs of mammalian trophic interactions and resulting selective pressures on size evolution across the Cenozoic 🦣🐅 esajournals.onlinelibrary.wiley.com/doi/10.1002/...
esajournals.onlinelibrary.wiley.com
Bioenergetic trophic trade‐offs determine mass‐dependent extinction thresholds across the Cenozoic
Body size constrains trophic interactions, shaping the feasibility of species' populations. Over macroevolutionary timescales, these constraints feed back to shape selection on body size and diet. We...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 04/05/2026
My friend Ben wrote this extremely cool paper that looks incredibly useful: www.pnas.org/doi/10.1073/...
pnas.org
The allometry of vertebrate pursuit predation | PNAS
Pursuit and evasion dynamics are a general phenomenon observed in predator–prey interactions across terrestrial, aquatic, and aerial domains. Diffe...
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Reposted by Ashkaan K. Fahimipour
Jenna Norton @jenna-m-norton.bsky.social · 30/04/2026
Sharing this screen grab from a friend at NIH (with permission). This is a checklist program officers have to complete before a grant can be awarded. The first question: "Is this grant All Clean/Clear in the NIH Text analysis Tool?" 🧵1/3
Screen grab of an NIH grants checklist showing the first question is: "1. Is this grant All Clean/Clear in the NIH Text analysis Tool?"
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Ashkaan K. Fahimipour @akfbio.bsky.social · 23/04/2026
Yoooo new allometric food web parameters dropped: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Critical Role of Coefficients: Updating Allometric Normalisation Constants for Modern Ecology and Modelling
Allometry is central to a wide range of ecological research including dynamic food web modelling. Here we updated the often neglected allometric coefficients for metabolism and production, deriving n...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 20/04/2026
Seems very cool
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Reposted by Ashkaan K. Fahimipour
Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 18/04/2026
That time of year again! If you'd like an example of job apps in academia or industry, here's a good resource. If you got a job in industry or academia in the last few years, please consider adding yours! github.com/RILAB/statem...
github.com
GitHub - RILAB/statements: Successful Job Applications and Grants
Successful Job Applications and Grants. Contribute to RILAB/statements development by creating an account on GitHub.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 06/04/2026
Mohg's spear is easy mode
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
This was an insane idea, and this paper would not have existed if the Center for Complex Systems hadn't paired a sharp physics student with my biology lab. Interdisciplinary science wins again. Great working with @jdyeakel.bsky.social and others, as usual.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
Finally, groups are fragile to the addition of new (competent) members, suggesting disruptions to the learned interaction structure reduces collective performance.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
Interestingly, agents all learn different strategies, spanning a 3D manifold of behavioral strategies. These strategies are defined by tradeoffs in exploratory search, energy conservation, and interception rules
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
We find that agents learn remarkable coordinated behaviors, from prey flanking and interception, to distributed follow-the-leader dynamics, to aborting costly pursuits.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
We ask what happens in agent-based food webs when predators deploy a deep neutral network as their decision-making apparatus. Agents take in sensory information and translate these to actions.
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Ashkaan K. Fahimipour @akfbio.bsky.social · 31/03/2026
New paper led by my (now former!) PhD student, Dr. Stephen Hoover, showing some amazing applications of AI and reinforcement learning to food web ecology. A 🧵...
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Ashkaan K. Fahimipour @akfbio.bsky.social · 20/03/2026
It is one of the great joys in my life to share my lab's first successful PhD defense. Congratulations, Dr. Hoover!
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Ashkaan K. Fahimipour @akfbio.bsky.social · 07/03/2026
I really wish I could make this 🥲
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Ashkaan K. Fahimipour @akfbio.bsky.social · 05/03/2026
My first PhD student is defending in 2 weeks and he just showed me his beamer slide deck 👉🏽😎👉🏽
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Ashkaan K. Fahimipour @akfbio.bsky.social · 25/02/2026
Paper link: royalsocietypublishing.org/rsif/article...
royalsocietypublishing.org
Generalized dynamics of cross-feeding bacteria
Abstract. Bacterial cooperation involves the exchange of metabolites, which can range from costless byproducts of metabolism to intentionally produced and
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Ashkaan K. Fahimipour @akfbio.bsky.social · 25/02/2026
If you like matrices + microbes, have I got the paper for you. Work with @janamassing.bsky.social, @jdyeakel.bsky.social, and @thilogross.bsky.social out today in @royalsocietypublishing.org! We study dynamics of cooperative bacteria without specifying a conventional model: doi.org/10.1098/rsif...
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