Jack Hruska, Ph.D.
@jhruska.bsky.social
Biology Ph.D. graduate from Texas Tech University, incoming Postdoc at the University of Nebraska | global citizen | interests: conservation genomics and evolution, primarily in birds
Views do not represent University of Nebraska
Views do not represent University of Nebraska
Pinned
Jack Hruska, Ph.D.
@jhruska.bsky.social
· Nov 22
Lots of new followers so a proper introduction is in order. My name is Jack Hruska, and I am an evolutionary biologist that uses genomic data to identify the forces determining genetic diversity. Incoming postdoc at University of Nebraska, assessing temporal genomics of monarch butterflies!
Reposted by Jack Hruska, Ph.D.
I mean, the title says it all: Genetic confirmation of an “uncommon mourningthroat” (Geothlypis philadelphia × G. trichas): A rare but persistent hybrid warbler. Fun stuff with @kevinfpbennett.bsky.social and Kurt Gielow, OA in @wilsonornithsoc.bsky.social!
🦉 🧪
www.tandfonline.com/doi/full/10....
🦉 🧪
www.tandfonline.com/doi/full/10....
November 21, 2025 at 2:34 PM
I mean, the title says it all: Genetic confirmation of an “uncommon mourningthroat” (Geothlypis philadelphia × G. trichas): A rare but persistent hybrid warbler. Fun stuff with @kevinfpbennett.bsky.social and Kurt Gielow, OA in @wilsonornithsoc.bsky.social!
🦉 🧪
www.tandfonline.com/doi/full/10....
🦉 🧪
www.tandfonline.com/doi/full/10....
Reposted by Jack Hruska, Ph.D.
Capsule: Comprehensive Reproducibility Framework for R and Bioinformatics Workflows github.com/SAADAT-Abu/C... ...Generates Docker containers, exports to Nextflow & Snakemake #Rstats
November 19, 2025 at 7:02 PM
Capsule: Comprehensive Reproducibility Framework for R and Bioinformatics Workflows github.com/SAADAT-Abu/C... ...Generates Docker containers, exports to Nextflow & Snakemake #Rstats
Reposted by Jack Hruska, Ph.D.
Here is a link to the corresponding paper, which does not require the Utrecht University login:
www.nature.com/articles/s43...
Leny Montheil et al. (2025) @commsearth.nature.com, including @vanhinsbergen.bsky.social
Please check out the quoted post for an overview of this new paper! 👇🏻
🧪 ⚒️
#PaleoSky
www.nature.com/articles/s43...
Leny Montheil et al. (2025) @commsearth.nature.com, including @vanhinsbergen.bsky.social
Please check out the quoted post for an overview of this new paper! 👇🏻
🧪 ⚒️
#PaleoSky
November 15, 2025 at 11:25 AM
Here is a link to the corresponding paper, which does not require the Utrecht University login:
www.nature.com/articles/s43...
Leny Montheil et al. (2025) @commsearth.nature.com, including @vanhinsbergen.bsky.social
Please check out the quoted post for an overview of this new paper! 👇🏻
🧪 ⚒️
#PaleoSky
www.nature.com/articles/s43...
Leny Montheil et al. (2025) @commsearth.nature.com, including @vanhinsbergen.bsky.social
Please check out the quoted post for an overview of this new paper! 👇🏻
🧪 ⚒️
#PaleoSky
Reposted by Jack Hruska, Ph.D.
Genome assembly fresh of the supercomputer, total size = 29,892,519,935 base pairs 🦎🧬
October 27, 2025 at 7:01 PM
Genome assembly fresh of the supercomputer, total size = 29,892,519,935 base pairs 🦎🧬
Reposted by Jack Hruska, Ph.D.
All those questions about inbreeding in conservation that you were afraid to ask.
A bunch of early career scientists is here to explain something that even Wright and Fisher couldn't agree on, the (not so) simple question of what is inbreeding.
link.springer.com/article/10.1...
A bunch of early career scientists is here to explain something that even Wright and Fisher couldn't agree on, the (not so) simple question of what is inbreeding.
link.springer.com/article/10.1...
Q&A: inbreeding and its implications for conservation - BMC Biology
Inbreeding depression plays a role in the decline, endangerment, and extinction of small populations, and thus inbreeding has received much attention in conservation biology. The term inbreeding is us...
link.springer.com
October 23, 2025 at 7:43 AM
All those questions about inbreeding in conservation that you were afraid to ask.
A bunch of early career scientists is here to explain something that even Wright and Fisher couldn't agree on, the (not so) simple question of what is inbreeding.
link.springer.com/article/10.1...
A bunch of early career scientists is here to explain something that even Wright and Fisher couldn't agree on, the (not so) simple question of what is inbreeding.
link.springer.com/article/10.1...
Reposted by Jack Hruska, Ph.D.
Hey Yaniv Brandvain is not on Bluesky but his most recent biostats ebook is live ybrandvain.github.io/biostats/. His stats resources have been so helpful to me as I develop my own stats course, so check it out. Github repo here: github.com/ybrandvain/b...
Applied Biostatistics
ybrandvain.github.io
October 24, 2025 at 2:47 PM
Hey Yaniv Brandvain is not on Bluesky but his most recent biostats ebook is live ybrandvain.github.io/biostats/. His stats resources have been so helpful to me as I develop my own stats course, so check it out. Github repo here: github.com/ybrandvain/b...
Reposted by Jack Hruska, Ph.D.
Why are some species smaller than a paperclip while others grow longer than a school bus? How is body size evolution governed in animals? Out now in @pnas.org we tackle these longstanding questions through a genetic lens using my favorite group of fishes as our model!! www.pnas.org/doi/10.1073/...
Parallel shifts in differential gene expression reveal convergent miniaturization in fishes | PNAS
Body size variation in vertebrates is a complex polygenic trait, tightly correlated
with numerous aspects of a species’ biology, ecology, and physi...
www.pnas.org
October 22, 2025 at 9:33 PM
Why are some species smaller than a paperclip while others grow longer than a school bus? How is body size evolution governed in animals? Out now in @pnas.org we tackle these longstanding questions through a genetic lens using my favorite group of fishes as our model!! www.pnas.org/doi/10.1073/...
Reposted by Jack Hruska, Ph.D.
Out now on the cover of @journal-evo.bsky.social!
Led by Sarah Khalil, we took a genomic approach to investigate the hybrid zone between different-colored Red-backed Fairywren subspecies. We found some interesting candidate genes under selection. Check it out! academic.oup.com/evolut/advan...
Led by Sarah Khalil, we took a genomic approach to investigate the hybrid zone between different-colored Red-backed Fairywren subspecies. We found some interesting candidate genes under selection. Check it out! academic.oup.com/evolut/advan...
October 18, 2025 at 4:42 PM
Out now on the cover of @journal-evo.bsky.social!
Led by Sarah Khalil, we took a genomic approach to investigate the hybrid zone between different-colored Red-backed Fairywren subspecies. We found some interesting candidate genes under selection. Check it out! academic.oup.com/evolut/advan...
Led by Sarah Khalil, we took a genomic approach to investigate the hybrid zone between different-colored Red-backed Fairywren subspecies. We found some interesting candidate genes under selection. Check it out! academic.oup.com/evolut/advan...
Reposted by Jack Hruska, Ph.D.
1/9 New in @science.org www.science.org/doi/10.1126/science.ado8005
How does genetic architecture constrain evolutionary trajectories? To address this question, we inferred the genetic architecture of convergent plumage coloration and its evolutionary history in wheatears.
How does genetic architecture constrain evolutionary trajectories? To address this question, we inferred the genetic architecture of convergent plumage coloration and its evolutionary history in wheatears.
A mosaic of modular variation at a single gene underpins convergent plumage coloration
The reshuffling of genomic variation from multiple origins is an important contributor to phenotypic diversification, yet insights into the evolutionary trajectories of this combinatorial process and ...
www.science.org
October 17, 2025 at 5:50 AM
1/9 New in @science.org www.science.org/doi/10.1126/science.ado8005
How does genetic architecture constrain evolutionary trajectories? To address this question, we inferred the genetic architecture of convergent plumage coloration and its evolutionary history in wheatears.
How does genetic architecture constrain evolutionary trajectories? To address this question, we inferred the genetic architecture of convergent plumage coloration and its evolutionary history in wheatears.
Reposted by Jack Hruska, Ph.D.
yeah, look .... not sure who needs to hear this (actually, everyone does), but turn off the stupid AI suggestions in your search results, and def. go and use @wikipedia.org a lot more.
I use it as my first-go-to knowledge base resource.
Follow the trail of citations to primary sources.
It's good.
I use it as my first-go-to knowledge base resource.
Follow the trail of citations to primary sources.
It's good.
wikipedia's data shows that AI is siphoning traffic away from the site, which is a danger to its sustainability. ironically Wikipedia is more important than ever to users who want reliable information instead of slop, and to AI companies that need it for training data www.404media.co/wikipedia-sa...
Wikipedia Says AI Is Causing a Dangerous Decline in Human Visitors
“With fewer visits to Wikipedia, fewer volunteers may grow and enrich the content, and fewer individual donors may support this work.”
www.404media.co
October 17, 2025 at 3:35 AM
yeah, look .... not sure who needs to hear this (actually, everyone does), but turn off the stupid AI suggestions in your search results, and def. go and use @wikipedia.org a lot more.
I use it as my first-go-to knowledge base resource.
Follow the trail of citations to primary sources.
It's good.
I use it as my first-go-to knowledge base resource.
Follow the trail of citations to primary sources.
It's good.
Reposted by Jack Hruska, Ph.D.
OUT TODAY: SimHumanity, a SLiM 5 model of the human genome, replete with demography, autosomes, X/Y & mtDNA.
A shared starting point for reproducible evolutionary simulations.
Huge thanks to coauthors Ben Haller, @mufernando.bsky.social & Philipp Messer.
🔗 www.pivotscipub.com/hpgg/5/4/0006
A shared starting point for reproducible evolutionary simulations.
Huge thanks to coauthors Ben Haller, @mufernando.bsky.social & Philipp Messer.
🔗 www.pivotscipub.com/hpgg/5/4/0006
October 16, 2025 at 12:10 PM
OUT TODAY: SimHumanity, a SLiM 5 model of the human genome, replete with demography, autosomes, X/Y & mtDNA.
A shared starting point for reproducible evolutionary simulations.
Huge thanks to coauthors Ben Haller, @mufernando.bsky.social & Philipp Messer.
🔗 www.pivotscipub.com/hpgg/5/4/0006
A shared starting point for reproducible evolutionary simulations.
Huge thanks to coauthors Ben Haller, @mufernando.bsky.social & Philipp Messer.
🔗 www.pivotscipub.com/hpgg/5/4/0006
Reposted by Jack Hruska, Ph.D.
Want to make publication-ready figures come straight from Python without having to do any manual editing? Are you fed up with axes labels being unreadable during your presentations? Follow this short tutorial including code examples! 👇🧵
October 16, 2025 at 8:26 AM
Want to make publication-ready figures come straight from Python without having to do any manual editing? Are you fed up with axes labels being unreadable during your presentations? Follow this short tutorial including code examples! 👇🧵
Reposted by Jack Hruska, Ph.D.
I guess because software allows it, ppl keep trying to estimate diversification rates on phylogenies. This is not in principle possible, because infinite combinations of diversification and extinction rates can explain almost any tree. Short, clear recent-ish paper: www.nature.com/articles/s41...
October 8, 2025 at 6:45 AM
I guess because software allows it, ppl keep trying to estimate diversification rates on phylogenies. This is not in principle possible, because infinite combinations of diversification and extinction rates can explain almost any tree. Short, clear recent-ish paper: www.nature.com/articles/s41...
Reposted by Jack Hruska, Ph.D.
redirects
wizardzines.com/comics/termi...
(from "The Secret Rules of the Terminal", out now! wizardzines.com/zines/termin...)
wizardzines.com/comics/termi...
(from "The Secret Rules of the Terminal", out now! wizardzines.com/zines/termin...)
October 7, 2025 at 3:03 PM
redirects
wizardzines.com/comics/termi...
(from "The Secret Rules of the Terminal", out now! wizardzines.com/zines/termin...)
wizardzines.com/comics/termi...
(from "The Secret Rules of the Terminal", out now! wizardzines.com/zines/termin...)
Reposted by Jack Hruska, Ph.D.
💥BREAKING: Birds in a tropical pluvial rainforest of the Chocó have been quietly changing in morphology for 109 years. Some have shrunk, others grown. Tails grew longer, bills grew deeper. Even in forests with continuous cover, climate change may be rewriting evolution in real time.
September 29, 2025 at 7:16 PM
💥BREAKING: Birds in a tropical pluvial rainforest of the Chocó have been quietly changing in morphology for 109 years. Some have shrunk, others grown. Tails grew longer, bills grew deeper. Even in forests with continuous cover, climate change may be rewriting evolution in real time.
Reposted by Jack Hruska, Ph.D.
Yes! A fantastic way for folks who don’t have access to a major university library to be able to read articles.
Great news!
JSTOR now have a free account with an Independent Researcher category. You can access 100 documents per month
www.jstor.org/action/showL...
JSTOR now have a free account with an Independent Researcher category. You can access 100 documents per month
www.jstor.org/action/showL...
September 29, 2025 at 6:15 PM
Yes! A fantastic way for folks who don’t have access to a major university library to be able to read articles.
Reposted by Jack Hruska, Ph.D.
TEtrimmer: a tool to automate the manual curation of transposable elements. #TransposableElements #ManualCuration #Genomics #Bioinformatics @natcomms.nature.com 🧬 🖥️
www.nature.com/articles/s41...
www.nature.com/articles/s41...
September 27, 2025 at 6:05 PM
TEtrimmer: a tool to automate the manual curation of transposable elements. #TransposableElements #ManualCuration #Genomics #Bioinformatics @natcomms.nature.com 🧬 🖥️
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Jack Hruska, Ph.D.
My colleague @hernmoral.bsky.social is teaching what looks like a wonderful course online this November - Museomics: An Introduction to Genomic Analyses of Natural History Collections. Register: www.physalia-courses.org/courses-work... #consgen
Museomics: An Introduction to Genomic Analyses of Natural History Collections
3-7 November To foster international participation, this course will be held online
www.physalia-courses.org
September 25, 2025 at 4:19 PM
My colleague @hernmoral.bsky.social is teaching what looks like a wonderful course online this November - Museomics: An Introduction to Genomic Analyses of Natural History Collections. Register: www.physalia-courses.org/courses-work... #consgen
Reposted by Jack Hruska, Ph.D.
Maybe social media was a bad idea.
September 12, 2025 at 6:10 PM
Maybe social media was a bad idea.
Reposted by Jack Hruska, Ph.D.
The first Aguillon Lab paper is officially out in early view at Evolution!! Led by postdoc @devonderaad.bsky.social, we’ve explored the hybrid zone between black-headed and rose-breasted grosbeaks in the Great Plains. #ornithology #hybridization #speciation #evolution doi.org/10.1093/evol...
September 12, 2025 at 3:49 PM
The first Aguillon Lab paper is officially out in early view at Evolution!! Led by postdoc @devonderaad.bsky.social, we’ve explored the hybrid zone between black-headed and rose-breasted grosbeaks in the Great Plains. #ornithology #hybridization #speciation #evolution doi.org/10.1093/evol...
Reposted by Jack Hruska, Ph.D.
Excited to share our new paper on flight morphology and migration in North American wood warblers. Surprisingly, ground-dwelling warblers may be better adapted for migration than aerial ones!!!
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Morphological adaptations for migration in North American wood-warblers (Aves: Parulidae) - Journal of Ornithology
Migration exerts a selective pressure for increased flight efficiency and reduced energy expenditure in long-distance migratory birds. In North America, eastern migratory flyways are longer and requir...
link.springer.com
September 10, 2025 at 5:41 PM
Excited to share our new paper on flight morphology and migration in North American wood warblers. Surprisingly, ground-dwelling warblers may be better adapted for migration than aerial ones!!!
link.springer.com/article/10.1...
link.springer.com/article/10.1...
Reposted by Jack Hruska, Ph.D.
The new XKCD has to be a reference to the ant paper where ants just casually lay eggs of a different species, yes? Maybe? There are so many weird bugs its hard to know.
September 10, 2025 at 5:32 PM
The new XKCD has to be a reference to the ant paper where ants just casually lay eggs of a different species, yes? Maybe? There are so many weird bugs its hard to know.
Reposted by Jack Hruska, Ph.D.
While journal publishing has always been deeply problematic, hurting both the pace and trajectory of science, something is happening in this moment that is finally causing the system to crumble under its own weight and cost.
1/
1/
September 8, 2025 at 7:52 PM
While journal publishing has always been deeply problematic, hurting both the pace and trajectory of science, something is happening in this moment that is finally causing the system to crumble under its own weight and cost.
1/
1/
Reposted by Jack Hruska, Ph.D.
In the earliest stages of adaptive introgression, beneficial immigration can drive genome-wide changes. In a new preprint www.biorxiv.org/content/10.1... colleagues & I document exceptionally rapid genomic introgression in a lake population of stickleback.
August 29, 2025 at 1:33 PM
In the earliest stages of adaptive introgression, beneficial immigration can drive genome-wide changes. In a new preprint www.biorxiv.org/content/10.1... colleagues & I document exceptionally rapid genomic introgression in a lake population of stickleback.
Reposted by Jack Hruska, Ph.D.
Wei, @rstam.bsky.social et al. characterized CNVs in a wild tomato adapted to dry habitats, using WGS, finding more CNVs in diverging populations occupying stressful habitats, and environmental associations linked CNVs to climatic variables.
🔗 doi.org/10.1093/molbev/msaf191
#evobio #molbio
🔗 doi.org/10.1093/molbev/msaf191
#evobio #molbio
August 27, 2025 at 10:34 AM
Wei, @rstam.bsky.social et al. characterized CNVs in a wild tomato adapted to dry habitats, using WGS, finding more CNVs in diverging populations occupying stressful habitats, and environmental associations linked CNVs to climatic variables.
🔗 doi.org/10.1093/molbev/msaf191
#evobio #molbio
🔗 doi.org/10.1093/molbev/msaf191
#evobio #molbio