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Posts by Josh Jahner

NAVIGATING UNCERTAINTY Individual Resilience and Collective Action in Evolutionary Biology
LIGHTNING TALKS: 9:15 - 10:30 AM EDT

Focus on the collective: what can our community do in a time of uncertainty?

PROTHAMA MANNA, CLEMSON UNIV.
MOHAMED NOOR, DUKE UNIVERSITY
RUTH SHAW, UNIV. OF MINNESOTA JOSEPH GRAVES, NC A&T STATE UNIV.
SCOTT EDWARDS, HARVARD UNIV.
EMILY JOSEPHS, MICHIGAN STATE UNIV.
ALISON DAVIS RABOSKY, UNIV. OF MICHIGAN

WORKSHOP & BREAKOUTS: 11 - 12:30 PM EDT
Focus on the individual: how scientists can respond constructively, creatively, and sustainably in the face of instability
NELIA VIVEIROS, UNIV. OF COLORADO ANSCHUTZ MEDICAL CAMPUS

NAVIGATING UNCERTAINTY Individual Resilience and Collective Action in Evolutionary Biology LIGHTNING TALKS: 9:15 - 10:30 AM EDT Focus on the collective: what can our community do in a time of uncertainty? PROTHAMA MANNA, CLEMSON UNIV. MOHAMED NOOR, DUKE UNIVERSITY RUTH SHAW, UNIV. OF MINNESOTA JOSEPH GRAVES, NC A&T STATE UNIV. SCOTT EDWARDS, HARVARD UNIV. EMILY JOSEPHS, MICHIGAN STATE UNIV. ALISON DAVIS RABOSKY, UNIV. OF MICHIGAN WORKSHOP & BREAKOUTS: 11 - 12:30 PM EDT Focus on the individual: how scientists can respond constructively, creatively, and sustainably in the face of instability NELIA VIVEIROS, UNIV. OF COLORADO ANSCHUTZ MEDICAL CAMPUS

👋 👋 SSE members, I hope you'll join me May 21 for the virtual SSE Presidential Symposium:

Navigating Uncertainty: Individual Resilience and Collective Action in Evolutionary Biology

Pls RT to help get the word out!

4 days ago 52 38 1 0
Text: The Evolution Exchange, a monthly conversation series from the Society for the Study of Evolution. Outlines of cartoon heads with speech bubbles.

Text: The Evolution Exchange, a monthly conversation series from the Society for the Study of Evolution. Outlines of cartoon heads with speech bubbles.

💬 In the second installment of The Evolution Exchange, retired NSF Program Officer Dr. Sam Scheiner returns to discuss how to craft a successful research proposal. Watch or read the transcript here: www.evolutionsociety.org/the-evolutio...

1 month ago 23 16 0 1
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Extensive Multi‐Species Hybridization Between Leuciscidae Minnow Species Anthropogenic disturbances can disrupt ecosystems and alter species population dynamics. Interspecific hybridization is common between genetically related organisms, especially once reproductive barr...

I'm so so excited to share that the research I've done for my master's thesis is finally published in Molecular Ecology! ✨ We found that almost 1/3 of sampled Leuciscid minnows were hybrids 🐠 This includes hybrid crosses never before noted in scientific literature!! 🐟
doi.org/10.1111/mec....

3 weeks ago 5 2 0 1
Evolution 2026 meeting logo. Clilp art of a globe and laptop showing a virtual presentation. Text: Society for the Study of Evolution Global Meeting Participation.

Evolution 2026 meeting logo. Clilp art of a globe and laptop showing a virtual presentation. Text: Society for the Study of Evolution Global Meeting Participation.

SSE is pleased to offer free virtual #Evol2026 registration to all SSE members residing in 152 countries and territories around the world including India, Brazil, Mexico, and Colombia. Request your free registration code today! www.evolutionsociety.org/index.php?mo...

1 month ago 26 31 1 1

Applications for this UA postdoc fellowship are due next week— please reach out if you’re looking for a conservation-focused postdoc and would be interested in working with me!

3 months ago 6 5 0 1
How long would you survive with no DNA?
How long would you survive with no DNA? YouTube video by xkcd's What If?

How long would you survive with no DNA?

What the latest What If? video in collaboration with
@minuteearth.bsky.social!

www.youtube.com/watch?v=s3oL...

3 months ago 1103 131 18 10
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Job Opportunities | .

The Wyoming Game & Fish Dept. is hiring two Black Rosy-Finch technicians to conduct alpine surveys in Wyoming's high elevation mountains during June 1st to Aug 31st 2026: www.governmentjobs.com/careers/wyom.... Spread the word!

3 months ago 13 16 0 0

Job alert:
NOAA NWFSC & UW are looking for a postdoc (ASAP) in Seattle study foraging ecology of Cook Inlet beluga whales using eDNA. Genetics/ecology/eDNA experience preferred. Interested candidates reach out to kim.parsons@noaa.gov or rpkelly@uw.edu directly. #eDNA #ConsGen

3 months ago 16 29 2 0
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An image of a recruitment advertisement for a MS position at New Mexico Tech

An image of a recruitment advertisement for a MS position at New Mexico Tech

I am recruiting a MS student in Biology at New Mexico Tech with an anticipated start date of Fall 2026 to work on the applied evolutionary genetics of wild populations with conservation or management concerns (butterflies, bighorn sheep). Please see the attached advertisement for more info.

4 months ago 14 14 0 0
Video

Made a site comparing the sizes of living things :)

The great Julius Csotonyi spent 5 months painting over 60 illustrations for the site, no ai used

> neal.fun/size-of-life/

4 months ago 2639 913 77 87
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Opportunities ***PhD and MSc openings – Movement ecology and conservation*** I will periodically support graduate students, postdocs, and other staff through the Biology Department at the University of New…

I’m recruiting a PhD and MSC student for fall 2026 working on the movement ecology and conservation of Mexican spotted owls in SW forests and rocky canyonlands. Exciting partnership with Los Alamos National Laboratory. Great vibrant lab group, high impact research! 🦉

gavinmjones.com/opportunities/

4 months ago 99 88 4 1
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Mandeville Lab Fish are so delightfully weird. We study the evolutionary genetics and ecology of freshwater fishes, plus a few more things, at Northern Michigan University

I'm recruiting a new master's student for fall 2026 in my lab at Northern Michigan University @bionmu.bsky.social ! Students with interests in evolution of freshwater fish are encouraged to apply. Please see our lab website lizmandeville.github.io and the attached advertisement for more information.

4 months ago 37 38 1 4
Qualtrics Survey | Qualtrics Experience Management The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.

TL;DR We're looking for biology/evolution instructors in the US and Canada to test the impacts of inclusive evolutionary biology educational materials on undergraduate learning (you will be compensated). Pasting the official recruitment info in thread below. sunybuffalo.qualtrics.com/jfe/form/SV_...

5 months ago 5 15 1 3
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Anthropogenic factors explain wing colour variation in Colias (Lepidoptera: Pieridae) butterflies across the Toronto urbanization gradient Hybridization, or interbreeding between two previously diverged populations, is increasing due to human influences on the environment. Rates of hybridization might be increasing particularly quickly a...

Amanda Sabatino, @jpjahner.bsky.social and I have a new paper on @biorxiv-evobio.bsky.social. Amanda, in her undergraduate thesis work, found variation in Colias colour phenotypes is associated with different metrics of urbanization in Toronto. www.biorxiv.org/content/10.1...

5 months ago 12 7 0 0
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Are you interested in an MS position in Stream Ecology?

My lab (www.benjamintumolo.com) is recruiting a Master's student to join us at Northern Michigan University.

🐛🧪🕸️🍂🌊

Please get in contact if you are interested, and pass on this ad to anyone you know that might be!

Apply by Dec 16

5 months ago 17 19 2 0
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Glacial history and landscape features shape the hierarchical population genetic structure of woodland caribou (Rangifer tarandus caribou) in western Canada Caribou, listed as a species at risk across Canada, have experienced a wide range of evolutionary and selective pressures at multiple scales, from large-scale range shifts and recolonisations driven b...

New lab preprint by joint first authors Samuel Deakin and Anita Michalak 😀: Glacial history and landscape features shape the hierarchical population genetic structure of woodland caribou (Rangifer tarandus caribou) in western Canada www.biorxiv.org/content/10.1...

6 months ago 2 1 1 0
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Birds and Dinosaurs

xkcd images I use in my classes: a thread

When I teach phylogenetics (part 1):

xkcd.com/1211/

6 months ago 24 9 1 1
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My lab is hiring a 2-yr hummingbird evolution and genomics postdoc and a 1-yr salaried research and lab tech. Both with full U. Wyoming benefits. Please spread the word! Info below. Best consideration date Nov 1, start dates early Spring 2026.

6 months ago 96 85 0 5
“Virtual Firefly Symposium: Science, Conservation, and Education” A female Florida intertidal firefly perched on a red mangrove leaf at a nature center in Broward County, Florida.

“Virtual Firefly Symposium: Science, Conservation, and Education” A female Florida intertidal firefly perched on a red mangrove leaf at a nature center in Broward County, Florida.

Join us for a free 3-day virtual symposium on firefly research & conservation! Each day will include 6 presentations & time for networking. Everyone interested in fireflies is invited! 🪲💡
🗓️Oct 28-30 at 9am PT / 12pm ET
🔗Register for this free event: us06web.zoom.us/webinar/regi...

6 months ago 36 14 0 0

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 😬

7 months ago 3 2 1 0
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Functional synonymous mutations and their evolutionary consequences - Nature Reviews Genetics Synonymous mutations, once deemed neutral, have been shown to influence gene expression and organismal fitness by affecting transcription, mRNA processing, translation and protein folding. In this Per...

We had a really great discussion in class about this paper today
www.nature.com/articles/s41...

7 months ago 3 0 1 0
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Biology Department

xkcd.com/3140

7 months ago 26 9 2 0
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What Is the Fourier Transform? | Quanta Magazine Amid the chaos of revolutionary France, one man’s mathematical obsession gave way to a calculation that now underpins much of mathematics and physics. The calculation, called the Fourier transform, de...

At 26, during the Reign of Terror in France, Jean-Baptiste Joseph Fourier narrowly avoided the guillotine. A decade later, he made a discovery that changed mathematics forever. @shalmawegs.bsky.social reports:
www.quantamagazine.org/what-is-the-...

7 months ago 58 21 4 2
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How did life get multicellular? Five simple organisms could have the answer Nature - Single-celled species that often stick together in colonies have researchers rethinking the origin of animals.

For some three billion years, unicellular organisms ruled Earth. Then, around one billion years ago, a new chapter of life began

go.nature.com/4lPmznS

7 months ago 96 22 0 1
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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/...

8 months ago 66 75 2 2
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Reappraisal of the Dilution and Amplification Effect Framework: A Case Study in Lyme Disease The biodiversity–disease relationship posits two hypotheses: the dilution effect (where there's a negative relationship between biodiversity and disease risk) and the amplification effect (where ther...

Shirley Chen's paper from my lab on the dilution and amplification hypotheses regarding the biodiversity-disease relationship.
onlinelibrary.wiley.com/doi/10.1002/...

8 months ago 10 5 2 0
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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...

8 months ago 77 23 4 3
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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/...

8 months ago 18 9 0 0
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Extensive multi-species hybridization between Leuciscidae minnow species Anthropogenic disturbances can disrupt ecosystems and alter species population dynamics. Interspecific hybridization is common between genetically related organisms, especially once reproductive barri...

I'm thrilled to share more cool fish genetics, led by former MSc student Amanda Meuser, and with former student Amy Pitura and collaborator @erynmcfarlane.bsky.social. This one is about minnow hybrids!
www.biorxiv.org/content/10.1...

8 months ago 18 10 1 1
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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.

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-...

9 months ago 22 8 3 0