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Alex Stewart

@aast242.bsky.social
396 followers 318 following 7 posts

PhD student @ UA EEB. Appalachian. Amphibian genomics and evolution. Salamander Guy. Bioinformatician. He/Him

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Reposted by Alex Stewart
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 11/09/2025
Two independent origins of XY sex chromosomes in Asparagus www.biorxiv.org/content/10.1101/202…
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Jonathan Huie, PhD @jmhuie.bsky.social · 28/08/2025
Excited to share the first paper from my PhD! We looked at what traits help Aneides salamanders excel at climbing using museum specimens, CT scans, SEM, and more! No claws or toe pads, so how do they do it? In short, with long limbs, big feet and grippy toes! 🦎🧪 DM for PDF doi.org/10.1098/rspb...
Phylogeny of Aneides and Plethodon with animal photosPhylomorphospace showing body shape variationMorphospace of toe bones and box lots showing estimated gripping forceRepresentative SEM images of salamander feet
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Kevin Bird @stairwaytokevin.bsky.social · 25/06/2025
I would simply hire 5 actual real life graduate teaching assistants for classes
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John P. Friel, Ph.D. @friel.bsky.social · 07/06/2025
Wake up, babe, a new phylogeny and classification of coelacanths just dropped. 🐟🧪
journals.plos.org
A deep dive into the coelacanth phylogeny
The discovery in 1938 of a living coelacanth, Latimeria chalumnae, triggered much research and discussion on the evolutionary history and phylogeny of these peculiar sarcopterygian fishes. Indeed, coe...
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Brittany Sutherland @sutherlandbl.bsky.social · 13/05/2025
*ahem* Kentucky, West Virginia, I’m gonna need you two to look at your voting, look at your Medicaid usage, look deep in your soul and get right with the Lord. Y’all didn’t use to be like this, and your coal miner granddaddies are spinning in the ground.
Screen shot of a portion of a Medicaid usage map. Each county is shaded by percent Medicaid coverage, with bluer counties having higher rates. Kentucky and West Virginia have significantly more blue than surrounding states.
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Wally Smith @wsmith1.bsky.social · 09/05/2025
Excited to launch a new State Wildlife Grant on the newly-described Plethodon pauleyi. An impressive undergrad team’s habitat analysis from last fall is helping us locate new pops of this enigmatic species, w/ almost 20% of all of Virginia’s known individuals of the species recorded in the last week
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Alex Stewart @aast242.bsky.social · 02/05/2025
dude what the fuck
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Jay Jinsing Falk @jjinsing.bsky.social · 26/04/2025
My NSF PRFB on the genetics of female polymorphism in hummingbirds was terminated yesterday. I don't have much to say, I'm just sad. We've discovered so much, and could have gone so much further. If anyone else is in the same boat, esp postdocs, please reach out, it would be good to connect.
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Dr. Amy Hagen @spicegirl.bsky.social · 25/04/2025
Yesterday I was awarded $10k in research funds, today the grant was terminated by NSF. Would love someone to explain how this is making America great again…
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Wally Smith @wsmith1.bsky.social · 21/04/2025
Really enjoyed speaking with @jackiefmogensen.bsky.social at @motherjones.com for this piece on Helene's impacts on #Appalachia. The story discusses our long-term river restoration work & how ongoing attacks on science by the Trump admin might impact regional conservation efforts.
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Tammie Visintainer @proftv.bsky.social · 19/04/2025
I’m so angry & heart broken. My NSF CAREER grant was stolen today; dream project supporting science teachers/students as climate justice action researchers, tackling urban heat. Truly transformative, the culmination of my life’s work, we won’t stop, not in this climate crisis. Gonna fight like hell!
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Ulises Hernández @uliseshmc.bsky.social · 08/04/2025
Muy buena oportunidad para estudiantes internacionales interesados en un doctorado en US. eeb.princeton.edu/graduate/eeb...
eeb.princeton.edu
EEB Scholars Program
The 2024 EEB Scholars Program application is now open and will close on June 15th, 2024.As part of efforts to increase the diversity and accessibility of graduate studies in ecology and evolutionary b...
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Rob Denton @rddenton.bsky.social · 04/04/2025
In case this is helpful to someone out there: I'm moving to Ball State University this August, and I'll have a support for MS students over the next three years (RAs/TAs) If your lab has talented students graduating this spring, I welcome them to reach out and talk about the opportunities.
Salamander winking
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McKenna Horsley @mckennahorsley.bsky.social · 20/03/2025
Saying it’s ‘about hate,’ Beshear vetoes ban on DEI in Kentucky public higher education kentuckylantern.com/2025/03/20/s...
kentuckylantern.com
Saying it's 'about hate,' Beshear vetoes ban on DEI in Kentucky public higher education • Kentucky Lantern
Democratic Gov. Andy Beshear issues expected veto of a Republican-backed bn on diversity, equity and inclusion in Kentucky’s public colleges.
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Leslie Rissler @ljrissler.bsky.social · 18/02/2025
Colleagues, including my partner, with years of service at the agency. Some Permanent POs reclassified as Probationary. Exceptional scientists who were former professors at major institutions, and came to NSF to serve the community and ensure science thrives in the US.
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Tolarian Community College @tolariancommunitycollege.com · 12/02/2025
I'm giving away EVERY Masters set EVER! It's Masters Masters! I'm giving TEN PEOPLE each one box of Masters from the entire history of Masters sets as a thank you! Just donate in multiples of $4.00 to @translifeline.bsky.social until Feb 15 at 11am PST! Donate---> give.translifeline.org/tolarian
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Travis Seaborn @travisseaborn.bsky.social · 10/02/2025
Rhiannon Hall @rhall01.bsky.social tackled a split poster for both chapters of her MS work: landscape genomics of two bumblebee species in North Dakota and occupancy modeling to understand bumble bee nest selection out at the Central Grasslands Research and Extension Center. 3/6
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Dr. Katharine Dickson @metaomicsnerd.bsky.social · 07/02/2025
they’re PRIVATE
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Anita Devineni @anitadevineni.bsky.social · 07/02/2025
My student's diversity F31 has been pulled from study section even though it's the SAME APPLICATION as regular F31s, normally reviewed together in the same panel. Throwing out all the applications from URMs while the ones from white/privileged students get to be reviewed is blatant discrimination.
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Alex Stewart @aast242.bsky.social · 06/02/2025
Bumping this because some issues with text formatting in the figures were fixed! The trees in the paper should be more legible now 😅
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Alt CDC (they/them) @altcdc.altgov.info · 01/02/2025
The entire archive of CDC datasets can be found here. HUGE shoutout to data archivists- this work is important 👏🙌🏻 archive.org/details/2025...
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Kevin Bird @stairwaytokevin.bsky.social · 01/02/2025
The dismantling of American Science continues. The Organismal Response to Climate Change grant call has been cancelled. The NSF Director is a disgrace
Email text:
[EXT] Grants.gov
Opportunities Update
External Email
The following grant opportunities were created, updated, or deleted on Grants.gov:
NSF
National Science Foundation
25-504 - Organismal Response to
Climate Change
Deletion Comments: Opportunity deleted
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Kevin Bird @stairwaytokevin.bsky.social · 30/01/2025
I'm begging a major news org to cover the fact NSF is defying the courts to enact Trump's unconstitutional executive order
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Kevin Bird @stairwaytokevin.bsky.social · 29/01/2025
This is exactly why NSF's response is so concerning. We need leaders who aren't complying in advance to unlawful orders that are paused by courts or rescinded by the WH
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John Jackson @johnjacksonnathist.bsky.social · 23/01/2025
Male southern elephant seals are 5.3 times heavier than females but female helmeted water toads are 21 times heavier than males. What is the reason for sexual size dimorphism in evolutionary terms? #NHMScience @nhcooper123.bsky.social & al investigate www.nature.com/articles/s41...
nature.com
Evolution of sexual size dimorphism in tetrapods is driven by varying patterns of sex-specific selection on size - Nature Ecology & Evolution
A phylogenetic comparative analysis of male and female body size across tetrapods globally shows that directional change in size is usually greater in males but reveals different underlying mechanisms...
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Kelly Zamudio @kzutaustin.bsky.social · 18/12/2024
Hey All, plz repost, and share with grads, post-docs and disease folks! We are hiring a post-doc to work on mechanisms of immune responses of frog hosts to Bd infections. Deadline is February 1, 2025. Details for the position can be found at the link below. 🐸🐸🐸 zamudiolab.org/2024/12/17/p...
zamudiolab.org
Post-Doc position in the KZLab! Immune responses to pathogen infections in frogs
We are looking for an NSF-funded post-doc in our lab in the Department of Integrative Biology at the University of Texas at Austin. The work will examine immune mechanisms that potentially underlie…
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Botanical Society of America @botsocamerica.bsky.social · 20/12/2024
🌵🌴 Big news! Botany 2025 is now heading to sunny Palm Springs, CA (July 25-31, 2025)! While plans shifted from Tucson, we're excited to stay in the Southwest. See you there! More information will be coming in early January at www.botanyconference.org #Botany2025
Graphic promoting Botany 2025 in Palm Springs, CA, taking place July 25-31, 2025. The tagline reads "Botany Without Barriers" against a bright blue sky with tall palm trees. Logos of supporting societies are displayed along the bottom, including the Botanical Society of America, American Fern Society, ASPT, Society of Herbarium Curators, IAPT, and ABLS.
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Alex Stewart @aast242.bsky.social · 18/12/2024
Do you need a salamander phylogeny? You're in luck! We put together the largest salamander phylogeny to date based on molecular markers and used more fossil calibrations than any other currently available trees. 765 salamander species! Check it out! www.sciencedirect.com/science/arti...
sciencedirect.com
A time-calibrated salamander phylogeny including 765 species and 503 genes
Recent time-calibrated amphibian phylogenies agree on the family-level relationships among extant salamanders but had disparate sampling regimes and i…
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Mike Barker @barkerms.bsky.social · 16/12/2024
We had a fun end of the semester axe throwing and Sonoran dog day in the lab! This has become an enjoyable annual event! Here is @aast242.bsky.social throwing an axe with Geoff Finch and @skang.bsky.social with a winning throw!
Two men stand in a wooden cage with a two target boards at the far end. They are throwing axes at the target with one axe flying in the air towards the board. The sign of above the targets reads "St Hubert's Hatchet House."A woman stands in front of a target board with an axe stuck in the board. Two Sonoran style hot dogs sit on a table in two red baskets with a roasted chile güero pepper beside each hot dog. The hot dogs are wrapped in bacon and in a bun filed with diced tomatoes, onions, beans, a stripe of mustard, salsa, and mayo.
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Mike Barker @barkerms.bsky.social · 29/11/2024
We had a wonderful 2024 #Plantsgiving with @conjustover.bsky.social, @aast242.bsky.social, @skang.bsky.social, and @poppybot.bsky.social among others! Our final count for this year's dinner was 103 species from 42 families! docs.google.com/spreadsheets...
docs.google.com
Barker/Dlugosch Plantsgiving 2024 Public List
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Rick Healey, piecing it together @twotothefifth.bsky.social · 03/10/2024
In honor of National Poetry Day, one of the all time classics.
THE TIGER
by Nael, age 6
From "They're Singing a Song in Their Rocket"

The tiger
He destroyed his cage
Yes
YES
The tiger is out
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Nothings Monstered @nothingsmonstrd.bsky.social · 28/09/2024
The indirect benefits of free lunches
Screenshot of a tweet taken from yet another social network but summarize that it is a note to summarize a quote of a quote here a paper from the National Bureau of economic research showing a result that free lunch programs reduce the amount that parents spend at grocery stores which makes grocery stores cut their prices because demand is down and so everyone in the area gets lower grocery prices
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Matthew Hahn @3rdreviewer.bsky.social · 12/09/2024
New review paper with Drew Larson, Mike Itgen, and Rob Denton! "Reconsidering cytonuclear discordance in the genomic age" ecoevorxiv.org/repository/v...
ecoevorxiv.org
Reconsidering cytonuclear discordance in the genomic age
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Mike Barker @barkerms.bsky.social · 12/09/2024
Join us on Wednesday, October 2, at 11AM PDT for the first #PolyploidyWebinar of the season! @shellygaynor.bsky.social and @pairoflogs.bsky.social will lead us off! The zoom link will be emailed out before the talks - sign up here if you have not signed up before! forms.gle/Bp3VUGeP9nAc...
A flyer for the Polyploidy Webinar that will be at 11 AM Pacific Time on October 2, 2024. Shelly Gaynor from the University of Michigan will present "Computationally intensive methods and models to understand mixed-cytotype populations" and Michael McKibben from the University of Arizona will discuss "Species‐tree topology impacts the inference of ancient whole‐genome duplications across the angiosperm phylogeny".
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Justin Conover @conjustover.bsky.social · 27/08/2024
I am ecstatic to share that I have accepted the Assistant Member and Principal Investigator position at the Donald Danforth Plant Science Center in St. Louis, MO! The Conover Lab will open June 1, 2025, and will be broadly interested in polyploid evolutionary genomics.
Justin standing next to a sign of the logo of the Donald Danforth Plant Science Center. In the background is the building of the Danforth Center, which sits within a lush green prairie that surrounds the building.
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Le Cagle @lecagle.bsky.social · 06/05/2024
The University Senate of the University of Kentucky has passed a vote of No Confidence in President Eli Capilouto.
Projected bar graph with 58 approve, 24 oppose, and 11 abstain
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southpaw @nycsouthpaw.bsky.social · 09/04/2024
The 1864 law was passed at the first session of Arizona’s territorial legislature. The territory wouldn’t become a state for another 48 years.
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Kinsey Brock @doc-brock.bsky.social · 09/04/2024
🦎🐍🐸🐢🐊🧪 Herpetology faculty! It’s time for a new spreadsheet to help get the word out about herp-focused labs that are recruiting students and postdocs for 2025-26! Faculty, use this form to advertise positions: docs.google.com/forms/d/e/1F...
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the ADHD academic @theadhdacademic.bsky.social · 29/03/2024
New collection of articles of neurodivergent experiences in academia from @elife.bsky.social : elifesciences.org/collections/... #Academia #HigherEd #DisabledInSTEM #Neurodivergent
elifesciences.org
Being Neurodivergent in Academia
Neurodiversity in research, from the perspective of neurodivergent scientists.
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Kinsey Brock @doc-brock.bsky.social · 01/04/2024
New urban wallie paper ! 🧪🦎 Smarter in the city? Lizards from urban and semi-natural habitats do not differ in a cognitive task in two syntopic species (Podarcis siculus and P. muralis) academic.oup.com/cz/advance-a...
academic.oup.com
Smarter in the city? Lizards from urban and semi-natural habitats do not differ in a cognitive task in two syntopic species
Abstract. Urbanization occurs at a global scale, imposing dramatic and abrupt environmental changes that lead to biodiversity loss. Yet, some animal specie
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Alex Stewart @aast242.bsky.social · 29/03/2024
submitted my first first-author publication today 🍾🥳
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Jason Stajich @hyphaltip.bsky.social · 14/03/2024
New paper alert 🚨. We found a virus in the amphibian pathogen fungus Batrachochytrium. www.sciencedirect.com/science/arti...
sciencedirect.com
An endogenous DNA virus in an amphibian-killing fungus associated with pathogen genotype and virulence
The global panzootic lineage (GPL) of the pathogenic fungus Batrachochytrium dendrobatidis (Bd) has caused severe amphibian population declines, yet t…
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Stacy Farina @stacyfarina.bsky.social · 07/03/2024
Warning: If you are doing a phylo ANOVA on shape using the R geomorph package, your states must be in the exact same order (by species) as your landmarks, even if both are labeled with the species names. The documentation doesn't tell you that. How many errors has this introduced in the literature?
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Kinsey Brock @doc-brock.bsky.social · 05/03/2024
Bad budget news: The National Science Foundation (NSF) is the biggest loser, with lawmakers imposing an 8.3% cut to $9.06 billion, some $820 million below 2023. 🧪 www.science.org/content/arti...
science.org
Final U.S. spending bills offer gloomy outlook for science
Key research funding agencies get sizable cuts or flat budgets
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Dr. Rebecca (Becca) Tarvin @rdtarvin.bsky.social · 10/02/2024
Cute little Batrachoseps attenuatus, California Slender Salamander, occupying about 1.5 cm^3 area of space Contra Costa Co, CA Feb 4 2024 🌿🐸🧪🌎
Tiny brown salamander curled up in a ring
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