Jarrett Byrnes
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jebyrnes.bsky.social
Jarrett Byrnes
@jebyrnes.bsky.social
6.2K followers 1.1K following 8K posts
marine ecologist, online bon vivant, dad, ❤️ teaching #datasci & #rstats, byrneslab.net | floatingforests.org #BlackLivesMatter @jebyrnes in other places https://linktr.ee/jebyrnes
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jebyrnes.bsky.social
Jarrett Byrnes @jebyrnes.bsky.social · Nov 11
Starting a kelp ecologist starter pack. Let me know if you want to hop on! go.bsky.app/9HNjC1T
Reposted by Jarrett Byrnes
rstats.blaze.email
posit::conf(2025) talks on YouTube

https://blog.stephenturner.us/p/posit-conf-2025-youtube-playlist

#rstats #datascience
posit::conf(2025) talks on YouTube
Summary: Over 100 talks from posit::conf(2025) on YouTube, featuring R, Python, Quarto, Posit tools, and experts like Hadley Wickham, Wes McKinney, and Rich Iannone.
blog.stephenturner.us
November 11, 2025 at 12:04 AM
Reposted by Jarrett Byrnes
chelseaparlett.bsky.social
Revisiting @phdemetri.bsky.social’s “What is Confounding?” blog this morning.

What a great way to:

1: help people understand what confounding is doing and
2: show why randomization gets rid of a lot of causal worries for you!

🔗: dpananos.github.io/posts/2024-0...
Demetri Pananos Ph.D - What Is Confounding?
dpananos.github.io
November 10, 2025 at 7:23 PM
Reposted by Jarrett Byrnes
luxalptraum.com
I need a print of this
November 10, 2025 at 2:08 PM
Reposted by Jarrett Byrnes
bioquest.bsky.social
The @ecologicalsociety.bsky.social (ESA) Transforming Ecology Education to 4D (TEE) program is excited to host another Faculty Mentoring Network (FMN) in Spring 2026. Participants will explore #4DEE Framework. Deadline to apply is Nov 21: qubeshub.org/community/gr...
#HigherEd #STEMM #AcademicSky
November 10, 2025 at 1:23 PM
jebyrnes.bsky.social
This story has everything - mafia, bright lights big city, running from the law, and snail orgies. Happy weekend!
www.londoncentric.media/p/terry-ball...
The snail farmer of London, his mafia friends, and a £20m vendetta against the taxman
Terry Ball runs elaborate mollusc-based tax avoidance schemes that are costing London councils millions of pounds. Yet when London Centric tracks him down, an even stranger story emerges.
www.londoncentric.media
November 8, 2025 at 3:47 PM
jebyrnes.bsky.social
Want! Where did they get this?!
economeager.bsky.social Rafe Meager (they/them) @economeager.bsky.social · 2d
Check out my cool seaweed shirt and underwhelmed affect. (Enthusiasm plus this shirt would be too much and honestly I’m glad for the rest.)
I also have pink hair. The shirt is indescribably chaotic and some would say you’re better off not having seen it.
November 8, 2025 at 3:17 PM
Reposted by Jarrett Byrnes
ellyzoe.bsky.social
A final fuck off to James Watson and to every news source who’s naming him as one of two co-discoverers of DNA structure without mentioning Rosalind Franklin. 🖕
November 7, 2025 at 7:58 PM
Reposted by Jarrett Byrnes
rmcelreath.bsky.social
I am slow to react to this recent Stockholm Declaration on scientific publishing. A lot of it sounds good, but I don't see how we get from here to there. I worry nothing substantial will happen until the cost disease kills the host.
3. Incentive systems to merit quality, not quantity Reward scientific achievement based primarily on quality—not quantity measures of today’s ‘reputation economy’ metric system [8]. Discourage ‘salami-slicing’ of results to obtain ‘least publishable units’; reduce the abundance of review articles (meta-analyses) and commentaries that over-burden reviewers and can too easily be generated using AI. Rankings of academic achievement with metrics such as citation counts, ‘journal impact factor’ (JIF) and ‘publication number’ must be used responsibly because they often do not correlate with research quality [9] (see also CoARA—Reforming Research Assessment). 7
November 6, 2025 at 9:33 AM
Reposted by Jarrett Byrnes
libbyheeren.bsky.social
When you spend two days joking with your data friends about being old and not understanding Gen Z slang, and then @hadley.nz drops this 😂

I was like, was he sensing our conversations?! It's like when you worry your phone is listening to you #rstats #databs
hadley.nz Hadley Wickham @hadley.nz · 4d
Do you teach #rstats? Do your students complain about how lame and old-fashioned dplyr is? Don't worry: I have the solution for you: github.com/hadley/genzp....

genzplyr is dplyr, but bussin fr fr no cap.
GitHub - hadley/genzplyr: dplyr but make it bussin fr fr no cap
dplyr but make it bussin fr fr no cap. Contribute to hadley/genzplyr development by creating an account on GitHub.
github.com
November 6, 2025 at 11:52 PM
Reposted by Jarrett Byrnes
hadley.nz
purrr 1.2.0 out now — mostly removing long deprecated functions but a few small performance nad parallel processing improvements. Learn more at www.tidyverse.org/blog/2025/11... #rstats
purrr 1.2.0
This release tightens up the package by removing long-deprecated functions, making `map_chr()` and predicate functions more type-safe, and requiring a newer version of carrier to make `in_parallel()`...
www.tidyverse.org
November 4, 2025 at 2:10 PM
jebyrnes.bsky.social
And she passed! Welcome Dr. @breckmccollum.bsky.social!
jebyrnes.bsky.social Jarrett Byrnes @jebyrnes.bsky.social · 4d
This morning! See @breckmccollum.bsky.social talk subtidal rock wall ecology as she defends her PhD! Zoom link in image!
Defense poster for Breckie McCollum!
November 6, 2025 at 11:40 PM
Reposted by Jarrett Byrnes
whysharksmatter.bsky.social
Keystone coral species population collapse after unprecedented heat stress www.cell.com/trends/ecolo... 🧪🦑🌎
Keystone coral species population collapse after unprecedented heat stress
Climate change threatens coral reefs globally. Birkart and Alvarez-Filip document local extirpation of a keystone coral species in Mexico following unprecedented heat stress, suggesting similar…
www.cell.com
November 6, 2025 at 6:28 PM
Reposted by Jarrett Byrnes
afredston.bsky.social
the first paper from my lab at UCSC is on @ecoevorxiv.bsky.social
led by the brilliant Jordana Sevigny we assembled a >100 year timeseries of invert range extensions in the NE Pacific

huge range fluctuations are common; extensions are overwhelmingly associated with El Niño

doi.org/10.32942/X2T...
A century of invertebrate range extensions in the eastern North Pacific
doi.org
November 6, 2025 at 8:09 PM
jebyrnes.bsky.social
This morning! See @breckmccollum.bsky.social talk subtidal rock wall ecology as she defends her PhD! Zoom link in image!
Defense poster for Breckie McCollum!
November 6, 2025 at 12:27 PM
Reposted by Jarrett Byrnes
criskotsu.bsky.social
🧪🪨🌊
Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms - Nature Geoscience
High near-surface nitrogen-fixation rates that promoted the recent growth of the Great Atlantic Sargassum Belt were tied to greater upwelling of phosphorus from the equatorial Atlantic, according to c...
www.nature.com
November 6, 2025 at 12:20 AM
Reposted by Jarrett Byrnes
philplait.bsky.social
Trump just continually shooting our country in the face. This unwarranted (and likely illegal) destruction of Goddard is madness. It jeopardizes the next several decades of space exploration.
tyleraking.com Tyler King @tyleraking.com · 5d
Reposting to correct an error: trump admin is quietly gutting 13 buildings and about 100 laboratories at Goddard campus that has been instrumental to Hubble and James Webb telescope missions. Staff say they’ve be locked and told to move equipment. Anything left behind will be thrown away.
NASA may be quietly gutting an iconic campus with what it calls strategic closures, workers fear
(CNN) — Alarm is growing among federal workers at NASA’s iconic Goddard Space Flight Center’s main campus in Greenbelt, Maryland — the nerve center for groundbreaking missions like the Hubble
www.wkow.com
November 5, 2025 at 4:38 PM
Reposted by Jarrett Byrnes
antoinevernet.com
This looks super useful... Too bad I just did that manually a few weeks ago (only for my own pubs, so not too many)
jebyrnes.bsky.social Jarrett Byrnes @jebyrnes.bsky.social · 6d
OK, I got so frustrated with this that I dug into some previous scripts out there, and modified it to a new one that.... seems to work? Take a gander at the repo - github.com/jebyrnes/bib... - or jebyrnes.github.io/bibtex_2_web...

Feel free to fork and pull to improve, or use it!
November 4, 2025 at 9:31 PM
jebyrnes.bsky.social
OK, I got so frustrated with this that I dug into some previous scripts out there, and modified it to a new one that.... seems to work? Take a gander at the repo - github.com/jebyrnes/bib... - or jebyrnes.github.io/bibtex_2_web...

Feel free to fork and pull to improve, or use it!
November 4, 2025 at 8:27 PM
Reposted by Jarrett Byrnes
nrennie.bsky.social
A small but interesting dataset for #TidyTuesday this week! We're looking at differences in lead levels of water samples between two studies 🧪

📊 Barcode chart showing distribution of values
✍️ Extended subtitle giving context
🔢 Annotations highlighting removed values

#RStats #ggplot2 #DataViz
Barcode chart showing values of samples collected, with the last sample showing higher variation and more outliers.
November 4, 2025 at 11:16 AM
Reposted by Jarrett Byrnes
ivelasq3.bsky.social
I wrote a lil post on the amazing work that
@ginareynolds.bsky.social does championing ggplot2 extension developers and teaching others to build their own!

The post features the Scrollytelling Quarto extension and the group's cute #RStats hex 🐱:

rworks.dev/posts/ggplot...
An Introduction to Writing Your Own ggplot2 Geoms – R Works
The ggextenders club provides inspiration and resources for those venturing into the exciting world of creating custom ggplot2 extensions.
rworks.dev
November 3, 2025 at 3:22 PM
jebyrnes.bsky.social
Having recently adopted some cute beasts, this is too real.
November 3, 2025 at 1:34 PM
Reposted by Jarrett Byrnes
avehtari.bsky.social
Now I'm also looking for a research software engineer to implement a pile of research results to R packages loo, posterior, bayesplot, projpred, priorsense, brms or/and Python packages ArviZ, Bambi and Kulprit. Apply by email with no specific deadline (see contact info at users.aalto.fi/~ave/)
avehtari.bsky.social Aki Vehtari @avehtari.bsky.social · 12d
I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/).

Others, please share
avehtari.bsky.social Aki Vehtari @avehtari.bsky.social · Oct 6
I'm looking for a doctoral student with Bayesian background to work on Bayesian workflow and cross-validation (see my publication list users.aalto.fi/~ave/publica... for my recent work) at Aalto University.

Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...
November 3, 2025 at 11:13 AM
Reposted by Jarrett Byrnes
cameronpat.bsky.social
found the random seeds used in the opening scene of Rosencrantz and Guildenstern Are Dead
Act One Rosencrantz and Guildenstern are betting on coin flips. Rosencrantz, who bets heads each time, wins 92 flips in a row. The extreme unlikeliness of this event according to the laws of probability leads Guildenstern to suggest that they may be "within un-, sub- or supernatural forces". It is revealed that the duo are journeying to court on the orders of the King. Guildenstern theorizes on the nature of reality, focusing on how an event becomes increasingly real as more people witness it.
November 3, 2025 at 12:54 AM
Reposted by Jarrett Byrnes
andrew.heiss.phd
Wrote up a little intervention post/explanation for my class about why using LLMs for trying to learn programming (as first time learners!) is bad and detrimental datavizf25.classes.andrewheiss.com/news/2025-11...
In the first week of class, I had you read an article about how ChatGPT is philosophical “bullshit”, as well as this other post about AI and LLMs in this class. I’ve seen a surprising increase in the amount of ChatGPT-based weekly check-ins and graph interpretations in the exercises. (In the past, I’ve even had students tell me they PDFs of the slides into ChatGPT to generate interesting and confusing things.) Don’t do this! LLMs cannot find three things that you personally found interesting from the readings. LLMs are not you. It’s a huge waste of time for all of us to for me to spend time evaluating and grading output from ChatGPT. I want to read what you think and do, not what a computer invents. NoteMy personal stance on AI and LLMs Many of you have asked about how I think about and use LLMs in my own work (and in the class materials). Please check this short little page where I explain what I do with text, images, code, research, and learning. In short, I do not use LLMs to create any of the materials for this class, and I do not use them to grade or evaluate any of your work. I’ve even had several students submit completely made up stuff for mini projects and final projects. In your final project, your job is to take a dataset, make three different plots with it, and combine the plots into one graphic that tells some sort of story. I’ve (really truly) received projects like this: (a ChatGPT-generated plot of completely made up data from gapminder) At a very quick glance, that looks like a plausible image. But holy crap it falls apart fast, both comically and tragically. Comically because, like, look at the y-axis in the scatterplot; or the x-axis ticks in the population grown chart that are sometimes spaced every 20 years, sometimes every 10 years, and has 1980 there twice; or the weird blobs in the map. Tragically—and most importantly—literally nothing in this image is real and none of the annotations make sense and none of the colors make sense and everything here is completely meaningless and devoid of any information. It’s pure philosophical bullshit—an image “produced without concern for its truth.” That’s what I mean when I say that it’s a forgetful and unreliable resource. Lots of that code is helpful as an illustration of what’s going on. Lots of the explanation is good and fine. But it subtly changed its mind halfway through and didn’t realize it (because it can’t realize it! it’s just a chain of statistically likely text!) Hopefully you can see where this is dangerous for learning. It can often “teach” you wrong, and you can only recognize that if you know stuff already. It’s extra dangerous if you then take that example output, paste it into your exercise, and submit it. I’m not even concerned about the plagiarism aspect of that—code is code and there are only a few ways to write {dplyr} code that will do this, and it’s easy to adapt from real human-based examples online, so I’m less worried about stealing other people’s work here. I’m concerned that it’s not real data. It made up values of 1, 2, 3, and 4 for some countries to illustrate grouping and summarizing. That’s good and normal. None of that is real. Don’t treat it as real.
November 2, 2025 at 10:17 PM
Reposted by Jarrett Byrnes
celestelabedz.bsky.social
"I can't believe spooky season is over! 😭" Ma'am you have a week and a half until the 50th anniversary of the wreck of the Edmund Fitzgerald. Use it!
November 1, 2025 at 3:30 PM