Sign in

Hannah E. Marx, PhD

@hannahmarx.bsky.social
294 followers 290 following 8 posts

Asst Prof 🌿 Herbarium Director @Cornell | Botanists & bioinformatician | oceanic & alpine "sky" islands. She/her | hannahmarx.com

PostsRepliesMedia
Reposted by Hannah E. Marx, PhD
Jonas Lembrechts @jlembrechts.bsky.social · 03/09/2026
Local extinctions of cold-adapted plant species on mountain tops are happening. And they're accelerating! That, and much more interesting nuance, in our new paper - just out, and on the cover of, Science! More on the story on my blog: the3dlab.org/2026/09/03/p...
the3dlab.org
Proving extinction is hard. But we can do so now.
For decades, climate change ecology has mostly been a story about shifts: species moving upslope, poleward, tracking the climate they’re adapted to as it slides out from under them. It’…
13011
Reposted by Hannah E. Marx, PhD
David Lowry @davidlowry.bsky.social · 31/08/2026
I am currently searching for a postdoc to work on the evolution of adaptations, cold acclimation, and freezing tolerance in switchgrass. The position entails lab, growth facility, bioinformatics, and fieldwork. careers.msu.edu/jobs/postdoc...
careers.msu.edu
Postdoctoral Scholar-Fixed Term - East Lansing, Michigan, United States
Position Summary The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct field and laboratory experiments to understand the causes of genetic variation...
16089
Hannah E. Marx, PhD @hannahmarx.bsky.social · 28/08/2026
I’m excited to announce that we are looking for a Curatorial Associate to join our team and help lead the L. H. Bailey Hortorium Herbarium at Cornell University 🌿 Please help share with interested botanists! jobs.hr.cornell.edu/us/en/job/WD...
jobs.hr.cornell.edu
Curatorial Associate in Ithaca, New York, United States of America | Library & Museum at Cornell University
Apply for Curatorial Associate job with Cornell University in Ithaca, New York, United States of America. Library & Museum at Cornell University
12938
Reposted by Hannah E. Marx, PhD
Casey Dunn @caseywdunn.bsky.social · 25/08/2026
My new book, Phylogenetic Biology, is now published. Available online for free at dunnlab.org/phylogenetic... . Physical copies can be purchased at shop.lightningsource.com/b/085?params... or your favorite bookstore.
12318161
Reposted by Hannah E. Marx, PhD
Ana Bedoya @botana-bedoya.bsky.social · 04/08/2026
If you are planning for #Botany2027 and did or did not attend #Botany2026, fill out this form if you need childcare!! docs.google.com/forms/d/e/1F... please!! This year there was no childcare and the nursing room is more a custodian closet without a lock, AC, water/sink+light goes off very 5 mins
22117
Reposted by Hannah E. Marx, PhD
Patrick McKenzie @patrickmckenzie.bsky.social · 03/08/2026
Major #Botany2026 FOMO, but the drive MA->OR starts this week. So, sharing from afar: I’m recruiting grad students for my new lab at OSU! Info: www.mckenzie-lab.org . We're going to have FUN with systematics, speciation genomics, methods, natural history, and more in North Am angiosperms. Reach out!
lab logo with a cartoon of white-flowering beebalm and the following text: "McKenzie Lab, Plant Evolution, Oregon State"
57648
Hannah E. Marx, PhD @hannahmarx.bsky.social · 03/08/2026
Excited to see everyone this week at #Botany2026 ! Check out what our lab has been working on 🌵 :
Marx Lab
#BOTANY2026 PRESENTATIONS

Bryana Olmeda, MS
Monday 8/3, 1:45-2:00pm, San Pedro 1
A Floristic Study Of The Vascular Flora Of The Brokeoff Mountains, Southcentral NM

Lila Kleppner, Undergrad
Monday 8/3, 5:30-7:00pm, Poster P74
Using over 100 years of herbarium records and citizen science data to explore alpine phenology in the Adirondacks

Dylan Sheng, Lab Technician
Monday 8/3, 5:30-7:00pm, Poster P87
Impact of mountain aspects on alpine community assembly across western North America

Hannah Marx
Tuesday 8/4, 8:00-8: 15am, Tucson Ballroom F
Symposium Introduction: Advancing Alpine Plants as Models of Eco-Evolutionary Dynamics at the Boundaries of Plant Survival

Joseph Kleinkopf, PhD candidate
Wednesday 8/5, 1:45-2:00pm, Tucson C-D Biogeography and biome evolution in Erigeron L. (Asteraceae)
0188
Reposted by Hannah E. Marx, PhD
Karolina Heyduk @kheyduk.bsky.social · 29/07/2026
As you're making your itinerary on the #Botany2026 app, check out some of these lab presentations!!!
Flier that reads "Heyduk lab at Botany 2026" followed by a list of presentations. Posters include Dominique Pham ("Do Better or Die: Drought stress memory in an epiphytic CAM bromeliad" P120), Ed McAssey ("Plants and Civilization: An interdisciplinary approach to engaging undergraduate students in Botany" P261), and Dantony Lewis ("Comparative Analysis of the CAM genes in the Agavoideae" P27).

There is a note that says "Also check out “Belonging In Botany: Fostering Resiliency Discussion”
Come ready to share your struggles and collaboratively build solutions
Tues. 11-12, Tucson Ballroom E"

Talks listed include:
Karolina Heyduk (Mon 10:00 San Pedro 1) "Homoploid hybridization: the end of a lineage or a driver of novel phenotypes?"
Weijun Liang (Tues. 2:00 San Xavier) “YELLOW INTENSITY (YIN): a conserved gene that downregulates corolla carotenoid accumulation in Mimulus (monkeyflowers)"
G Young Kim (Tues. 8:00 San Pedro 1) “Investigation of weak Crassulacean Acid Metabolism (CAM) in Peperomia reveals initial steps toward a CAM pathway.”
Erika Moore Pollard (Tues. 8:45 San Pedro 1) “The fast and the frugal: Nitrogen tradeoffs and genomic insights into bromeliad adaptation and evolution.”
Ellie Loew Mendelson (Tues. 9:00 San Pedro 1) “Assessing photosynthetic pathways in aquatic plant species”
Claire Marino (Tues. 11:30 San Pedro 1) "Giant cubes and muddy shoes: manipulating microclimate to study Symplocarpus foetidus’ ecophysiology in situ”
David Wickell (Wed. 10:30 Tucson AB) “Facultative CAM in Littorella uniflora: linking photosynthetic plasticity to environmental change”
26519
Reposted by Hannah E. Marx, PhD
Andrew Hipp @andrewlhipp.bsky.social · 30/07/2026
Heading to Botany 2026? Join @amsocplanttaxon.bsky.social in a special lecture by Diné botanist Dr. Arnold Clifford as he presents the story of the Carrizo Mountain Herbarium (CMH), the Navajo Nation's largest herbarium. Monday, August 3, 7:00-9:00 PM details at: mailchi.mp/f7208188714a...
03714
Reposted by Hannah E. Marx, PhD
Tracy Heath @trayc7.bsky.social · 23/06/2026
I’m recruiting a PhD student to join our lab in the fall of 2027. If you’re excited about phylogenetics, comp bio, paleobiology, stats theory, macroevolution, etc. please get in touch! Folks at #Evol2026, you can talk to @brpetrucci.bsky.social & @sigournie.bsky.social to learn more about our lab
08097
Reposted by Hannah E. Marx, PhD
April Wright @wrightam.bsky.social · 23/06/2026
“Collections are something done by past generations for future generations to preserve information” Dr. Jessica Ware, now discussing improving access to natural history collections at #evol2026
04811
Reposted by Hannah E. Marx, PhD
Mason Heberling @jmheberling.bsky.social · 16/06/2026
@plantspeopleplanet.bsky.social & @newphyt.bsky.social Joint Special Collection 'Harnessing the benefits of specimen digitisation' is out today. Excited to see landing page image features Carnegie Museum herbarium specimens from Greely Expedition! nph.onlinelibrary.wiley.com/hub/harnessi...
nph.onlinelibrary.wiley.com
067
Reposted by Hannah E. Marx, PhD
Lizzie Lombardi @emlombardi.bsky.social · 09/06/2026
It's time! They're blooming! Join the #PrettyVirusProject on @inaturalist.bsky.social to join a community of plant virus hunters: (1) Join the project on iNaturalist (2) Identify Dame's Rocket in your area and (3) Tag "TuMV" when the petals are speckled www.inaturalist.org/projects/pre...
inaturalist.org
Pretty Viruses Project
Viruses infect plants in agricultural fields, marginal habitats, prairies, on mountain peaks...and everywhere else we look! Not all virus infections induce visible symptoms, though, and it's chall...
155
Reposted by Hannah E. Marx, PhD
Andrew Hipp @andrewlhipp.bsky.social · 01/05/2026
In case you missed it, Joe Miller's @amsocplanttaxon.bsky.social @gbif.org lecture on data integration, extended specimens, and building community around collections is posted on the ASPT YouTube channel... check it out! I found it super-exciting. www.youtube.com/watch?v=6Rea...
youtube.com
GBIF: data integration towards the extended specimen - Joe Miller
YouTube video by American Society of Plant Taxonomists
0169
Reposted by Hannah E. Marx, PhD
Ethan Linck @elinck.bsky.social · 29/04/2026
This semester I developed and taught a course on applied population genomics. Lab activities proceed from the basics of the command line and Git to variant calling with workflow managers and a suite of downstream analyses (e.g., ADMIXTURE). All materials can be found here: elinck.org/genomics_eco...
49337
Hannah E. Marx, PhD @hannahmarx.bsky.social · 21/04/2026
I spent countless hours learning about phylogenetic methods and using results for multiple publications during my PhD. So thankful for the ease of exploration this platform enabled, lowering the gate for me to enter the computational biology realm. Thanks CIPRES—you will be missed!
082
Reposted by Hannah E. Marx, PhD
Thais Vasconcelos @tvasconcelos.bsky.social · 16/04/2026
Postdoc opportunity in plant systematics + phylogenomics 🌿 my lab at the University of Michigan is recruiting for a Research Fellow working on species delimitation in neotropical myrtles. Full details + apply here (deadline April 30) careers.umich.edu/job_detail/2...
careers.umich.edu
Research Fellow - Vasconcelos Lab | U-M Careers
01322
Reposted by Hannah E. Marx, PhD
Natalie Cooper @nhcooper123.bsky.social · 25/03/2026
Hi all. I am very excited that after 6 years I finally got my phylogenetic comparative methods book and online exercises online. Feel free to use and share. The book is here: nhcooper123.github.io/pcm-primer/. Note that it is not finished, we had to abandon it before the sunk costs fallacy broke us
nhcooper123.github.io
Phylogenetic Comparative Methods
Phylogenetic Comparative Methods
9288182
Reposted by Hannah E. Marx, PhD
Kew Gardens @rbgkew.bsky.social · 12/02/2026
🎉 Today is Darwin’s birthday! This is an actual wild tomato plant that he collected, over 180 years ago! 🍅 We have millions of specimens like these in our collection, but did you know you can now see them on our new Data Portal, for free!? 👇 👉 ow.ly/2ZuW50YcG4Z #DarwinDay
16219
Reposted by Hannah E. Marx, PhD
Ethan Linck @elinck.bsky.social · 22/12/2025
I've slowly been reformatting notes from my population and conservation genetics course at Montana State University into a web book—a rough draft is now live here: elinck.org/popgen_conge...
113561
Reposted by Hannah E. Marx, PhD
Brian J. Enquist @bjenquist.bsky.social · 19/12/2025
New postdoctoral fellowship opportunity! Please pass along. Excited to announce the launch of the Tom Lovejoy Fellowship Program at the University of Arizona for innovative research to protect species, sustain ecosystems, and promote a thriving planet lovejoycenter.arizona.edu/lovejoy-fell... 🧪🌐🌾
Application Process

Image
Woman behind a podium presenting.
Jessie Golding, BBCS postdoc, presenting at ICCB 2025.

Apply to become a Lovejoy Fellow by submitting your resume, cover letter, and contact information for three references through the University of Arizona Talent Portal (link upcoming) by the first review date of January 30, 2026.

Your cover letter should: 

Identify 1-2 Lovejoy BBCS faculty you would be interested in working with and explain the primary research directions you would want to pursue in collaboration with this faculty member. You are strongly encouraged to reach out to faculty before submitting your application.
Describe your experience with or interest in inter- or transdisciplinary research.
Explain how this experience will positively impact your career trajectory.
35048
Reposted by Hannah E. Marx, PhD
Daijiang Li @djli.bsky.social · 16/12/2025
Excellent excellent resource!
051
Reposted by Hannah E. Marx, PhD
Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 21/10/2025
Lunch today halfway around the world in Hangzhou and met a new asst professor who was very thankful for this resource. Please help out folks like them and other early career scientists with examples of job apps. Submit yours! github.com/RILAB/statem...
github.com
GitHub - RILAB/statements: Successful Job Applications and Grants
Successful Job Applications and Grants. Contribute to RILAB/statements development by creating an account on GitHub.
07040
Reposted by Hannah E. Marx, PhD
Emily Josephs @emjo.bsky.social · 24/10/2025
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...
ybrandvain.github.io
Applied Biostatistics
38651
Reposted by Hannah E. Marx, PhD
Workshops @evomics.bsky.social · 29/09/2025
The 2026 Workshop on Phylogenomics will take place between the 25th of January and 7th of February, in Cesky Krumlov, Czechia. 🧬🌳 Applications are now open! Deadline: 15th of November, 2025. Do not miss the chance to attend! Spread the word among colleagues! 🤗 evomics.org/apply-worksh...
0119
Reposted by Hannah E. Marx, PhD
Megan Barkdull @meganbarkdull.bsky.social · 08/09/2025
While full solicitation isn’t up, looks like we have 2025 proposal deadlines for the GRFP: www.nsf.gov/funding/oppo...
nsf.gov
NSF Graduate Research Fellowship Program (GRFP)
44942
Reposted by Hannah E. Marx, PhD
Stacey D. Smith @iochromaland.bsky.social · 11/08/2025
Big news! We are recruiting a postdoc to work on tomatillo evolution: jobs.colorado.edu/jobs/JobDeta.... The clade containing tomatillos and its allies (ca 300 spp) has evolved lantern fruits at least 25 times - we want to know why! Join us @rociodeanna.bsky.social & @caschenck-bio.bsky.social
jobs.colorado.edu
Postdoctoral Fellow in Tomatillo Evolution
2123108
Reposted by Hannah E. Marx, PhD
Josef Uyeda @pseudacris.bsky.social · 21/05/2025
Unsolicited listicle: My list of the most criminally underused/underappreciated phylogenetic comparative methods. Note, I am not involved in ANY of these methods; but I see them as things people are often asking of comparative data but have been surprised at how infrequently they have been cited.
414967
Hannah E. Marx, PhD @hannahmarx.bsky.social · 20/02/2025
"To plan for the future, it’s sometimes necessary to look to the past." Nice highlight of our work synthesizing temporal, taxonomic, and spatial trends in botanical collections to facilitate new research avenues @emlombardi.bsky.social @softcorebotany.bsky.social
news.unm.edu
New research prepares way for future botanical research
To plan for the future, it’s sometimes necessary to look to the past. To improve natural history collection and analysis in the future, a team of researchers is looking at collections of plants from a...
083
Reposted by Hannah E. Marx, PhD
Joe Walker @evojfwalker.bsky.social · 17/02/2025
Getting quality transcriptome assemblies from Herbarium samples is possible doi.org/10.1101/2025.... Work led by @atyszka.org. Another fun collaboration with @philcarella.bsky.social and @khongsamchia.bsky.social, who functionally validated an NLR immune receptor from a sample collected in 1956.
doi.org
Herbaria provide a valuable resource for obtaining informative mRNA
While DNA has built the framework for molecular insights from museum collections, the utility of archival RNA remains largely unexplored. Likely a consequence of the known instability of RNA relative ...
03916
Reposted by Hannah E. Marx, PhD
Phil Carella @philcarella.bsky.social · 17/02/2025
RNA from herbarium specimens is more stable than you think. Cool new study from @atyszka.org @evojfwalker.bsky.social and team. @khongsamchia.bsky.social and I were happy to contribute by functionally validating an NLR immune receptor last expressed in 1956 : www.biorxiv.org/content/10.1...
1317
Hannah E. Marx, PhD @hannahmarx.bsky.social · 04/02/2025
Undergrads interested in making and managing herbarium collections—apply for the Summer 2025 Atluri Biodiversity Collections Internship at the LH Bailey Herbarium! 🌻 Paid experience & includes field collecting around Ithaca 🥾
LH Bailey Herbarium Undergraduate Biodiversity Collections Paid Internship. Apply by Feb. 21, 2025. See QR code to apply.
076
Hannah E. Marx, PhD @hannahmarx.bsky.social · 31/01/2025
Fun times discussing ways we can continue to leverage vast and sometimes hidden biodiversity held in herbarium collections with @emlombardi.bsky.social 🌿🦠
175
Reposted by Hannah E. Marx, PhD
Caitlin MacKenzie @cmacmtns.bsky.social · 28/01/2025
Hey botanists — the New England Botanical Society provides small grants for grad students, early career faculty, and general botanical research. We are not federally funded and we have money to support your work. Applications due Feb 1.
0126
Hannah E. Marx, PhD @hannahmarx.bsky.social · 05/12/2024
Bittersweet mood driving out of New Mexico. I’m going to miss my UNM Herbarium community so much, and also very excited to build a home base in Ithaca and work with new colleagues through the Bailey Herbarium. Plus I still get to continue great collaborations with @softcorebotany.bsky.social 🌱
080
Reposted by Hannah E. Marx, PhD
georgia 🏴󠁧󠁢󠁷󠁬󠁳󠁿 @blahttodea.bsky.social · 11/11/2024
hey everyone! i made a list of some useful starter packs (primarily biology/earth sciences with a few bonus things thrown in) to share with friends who have joined bsky in the last week and thought it may be useful for some people here too! 🌍🧪 #SciSky #BioSky docs.google.com/document/d/1...
docs.google.com
Starter packs
BIOLOGY Ecology Macroecology https://go.bsky.app/GBn9pNZ Global ecology https://go.bsky.app/V6tN4cv Trait based ecology and evolution https://go.bsky.app/PThMXeX Invasion biology https://go.b...
76742389
Reposted by Hannah E. Marx, PhD
Michael Landis @landismj.bsky.social · 19/11/2024
Here's a starter pack for early career researchers in evolutionary biology. I prioritized the most-junior folks, and this list quickly filled up with undergrads, grad students, and postdocs. Might do another list later, but I'm tired. Have fun everyone! 🐒 #evobio go.bsky.app/MzND7nX
39265154