Josh Jahner
@jpjahner.bsky.social
190 followers 460 following 30 posts
evolutionary biologist | assistant professor at new mexico tech | probably thinking about bighorns, butterflies, baseball, or board games | he/him
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Reposted by Josh Jahner
mutualismecology.bsky.social
Dear evolution peeps,
Did I dream this up, or was there a newer unified-type species concept paper/synthesis published in the past several years? I thought I read and studied one, but I can’t find it/any evidence that exists.
Thank you for your help with my brain 😬
Reposted by Josh Jahner
samyeaman.bsky.social
I'm looking to recruit a PhD student to study patterns of local adaptation and introgression across the spruce hybrid zone in the Rockies near Calgary. Projects can include field work, bioinformatics, pop gen theory, or comparison to plant/ conifer species
yeamanlab.weebly.com/uploads/5/7/...
Reposted by Josh Jahner
swfitz.bsky.social
Excited to share our new paper led by @alexlewanski.bsky.social showing largely positive, multi-decadal consequences of translocations in Red-cockaded woodpeckers at Avon Park Air Force Range in central Florida: www.pnas.org/doi/10.1073/...

press release: www.eurekalert.org/news-release...
Reposted by Josh Jahner
trevorfaske.bsky.social
Very excited to have our study come out looking at multiple plant mosaic hybrid zones and their implications for hybrids to act as "sutures" of species ranges. We use genomic data to project shifts into future climates and discuss impacts on conservation/management.

www.pnas.org/doi/10.1073/...
Reposted by Josh Jahner
beebrookshire.bsky.social
A thing that always just stops me in my tracks when like, reporting how pythons break down the skeletons of their prey in their stomachs and then suck up the calcium...is how GORGEOUS the cells of the intestine are.

They're really honestly beautiful. www.sciencenews.org/article/new-...
A newly discovered cell helps pythons poop out the bones of their prey
The cells helps the snakes absorb the bones of their prey — and might show up in other animals that chomp their meals whole.
www.sciencenews.org
Reposted by Josh Jahner
Reposted by Josh Jahner
johnlechner.bsky.social
Here's one of my insect comics to celebrate #InsectWeek, featuring my favorite butterfly the skipper! 🍃
Four-panel comic depicting a small orange butterfly looking up at a monarch butterfly in the air. The small butterfly says, "Look, there goes a monarch butterfly! Everyone loves monarchs. So regal and elegant! Nobody notices a little skipper like me. Nobody." A nearby ant says, "Hey, did you see that monarch?"
Reposted by Josh Jahner
scottpegan.bsky.social
Hey #Evol2025 - My colleague @waspvenom.bsky.social and I are looking for a postdoc for our #NSF - #USDA funded grant to understand the genetic basis of gall formation! Please see that attached ad, and feel free to talk to me @evolmtg.bsky.social, or contact Dr. Ellen Martinson directly!
Reposted by Josh Jahner
mutualismecology.bsky.social
Serious FOMO at #Evol2025 The broadcasted opening plenary by @jbyoder.org, "No data speaks for itself—but with data, we can speak for ourselves", was excellent! So much great & important stuff. I especially appreciated the presentation of social science methods to natural scientists on Queer in STEM
Reposted by Josh Jahner
elinck.bsky.social
maybe my favorite paper I've written, I have a synthesis out today early access in @asn-amnat.bsky.social today that attempts to answer a simple but slippery question: what is an elevational range? doi.org/10.1086/737130
Reposted by Josh Jahner
andrewlhipp.bsky.social
Long-term flowering-time data on Japanese mountain cherry (recorded since the 9th century!) shows a shift in full-flowering date beginning in the late 19th century.

Fascinating new @newphyt.bsky.social paper by @jgpausas.bsky.social

onlinelibrary.wiley.com/doi/abs/10.1...
Reposted by Josh Jahner
xercessociety.bsky.social
Butterflies are in trouble, but there's a lot we can do about it! 🦋🆘
Today, we are sharing our “State of the Butterflies” report, featuring clear steps to recovery that everyone can take part in!
Learn more ➡️ xerces.org/press/as-us-...
Get the report ➡️ xerces.org/publications...
“As U.S. Butterfly Populations Plummet, Scientists Map a Road to Recovery” A Ruddy Copper butterfly resting atop a flower at the Seedskadee National Wildlife Refuge in Wyoming.
jpjahner.bsky.social
To sign up, you will also need to register for ESA. For more information, please see this website: apatt76.github.io/Introduction... or contact Amy with any questions, email: [email protected]
IntroductionToSparseModelingInR
Repository for sparse learning website
apatt76.github.io
jpjahner.bsky.social
Participants will learn about sparse modeling techniques, create SuSiE (susieR) and lasso (glmnet) scripts in R, and visualize and interpret fitted models during a live coding session.
jpjahner.bsky.social
They will teach you how to leverage sparse modeling approaches using accessible R packages to glean value from big data. Skill level necessary is intermediate: you need to know how to use R and RStudio, install packages on your own, open Rmd files, and be familiar with the concept of linear models.
jpjahner.bsky.social
Do you want to gain ecological insights from big data? Here is a chance to expand your knowledge of how to analyze datasets with many predictors and to overcome traditional statistical challenges such as overfitting and poor predictive performance.
jpjahner.bsky.social
Folks from the #EPSCoR Modelscape Consortium will be offering a Sparse Modeling in R workshop at the Ecological Society of America meeting (Friday, August 15 at 8am-11am). @ecologicalsociety.bsky.social
jpjahner.bsky.social
In this new preprint, we characterize interannual variation in the outcomes of hybridization between Colias butterflies from a contact zone in California
biorxiv-evobio.bsky.social
Temporal dynamics of color polymorphism and hybridization in Colias butterflies https://www.biorxiv.org/content/10.1101/2025.05.25.656022v1