Madeline G. Eppley, PhD

Madeline G. Eppley, PhD

@madeline-eppley.bsky.social

northeastern university marine science center 🌊 marine pop gen, conservation, disease ecology, and lots of 🦪 {currently looking for a postdoc!} https://linktr.ee/madelineeppley 🦈🏳️‍🌈🦀

2.2K followers607 following106 posts

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Madeline G. Eppley, PhD reposted

And a final shoutout to coauthor and fellow Lotterhos lab PhD candidate @camillerums.bsky.social who used this range-wide seascape genomics dataset to train genomic offset models in her new manuscript! 🦪 Check it out - also recently published in a special issue of Molecular Ecology!! 6/6

onlinelibrary.wiley.comGenomic Offsets Predict Survival With Low Accuracy in a Marine Common GardenPredicting how populations will respond to climate change is an urgent priority in evolutionary and conservation biology. Genetic and environmental influences have long been known to impact responses...

We suggest geographically isolated introgression in the Chesapeake resembles multiple generations of backcrossing & may be from artificial gene flow (e.g., translocations), while in Ap Bay genome-wide shifts in allele frequency resemble signatures of drift following a population bottleneck. 3/6

We also found the two ancestral groups harbored adaptive divergence in outlier loci associated with salinity and temp extremes. Lastly, we identified dense clusters of adaptive loci in regions of extended linkage disequilibrium as targets for marker-assisted selective breeding in aquaculture. 4/6

We detected two ancestral groups (Gulf & Atlantic) and complex substructure within each coast. Using highly differentiated loci between ancestral groups, we characterized unexpected patterns of ancestry resembling introgression in two large estuaries: Apalachicola Bay and Chesapeake Bay. 2/6

Madeline G. Eppley, PhD reposted

As everyone's winding down on #evol2026 we want to share our survey link with you again. Whether you work in reproductive biology specifically or not, please take a minute to help us understand how the scientific community uses reproductive terms in research! And hope to see you at #SMBE!

Madeline G. Eppley, PhD reposted

🚨 Heads up. Time to keep submitting comments. NSF is planning to comply in advance to OMB proposed grant policies. Comment by Aug 24. You should be an expert on this now!!

Dr. K. Lotterhos@drk-lo.bsky.social

OUR WORK IS NOT DONE. In unusual move, NSF issued a request for information on plan to conform grant policies to the proposed (unfinalized) OMB rule. Plan includes changes to grant termination provisions & disallowing publication costs. Comments due August 24. www.federalregister.gov/documents/20...

Madeline G. Eppley, PhD reposted

In our Viewpoint (onlinelibrary.wiley.com/doi/abs/10.1...) we synthesize the gametic definition (outlined by Janicke et al below) and other definitions of sex (e.g., multivariate definition). We contend that is NO consensus on “biological sex” (maybe a consensus isn’t actually necessary…)

onlinelibrary.wiley.comThere is No Consensus on Biological SexAt this critical moment when misinformation about sex is being applied to policy globally, scientific clarification on the definition of biological sex is valuable. Here, we evaluate the primary appr...
Tim Janicke@timjanicke.bsky.social

In a new #Viewpoint we argue that the binary definition of #BiologicalSex based on gamete size is a scientifically robust framework that is entirely compatible with the diversity of sexual phenotypes and human gender identities. onlinelibrary.wiley.com/doi/10.1111/...

Madeline G. Eppley, PhD reposted

My coauthor Jay Falk's postdoctoral fellowship was terminated by the Trump administration for documenting the hummingbird example in this paper.

Andy Lee, PhD@andylee.bsky.social

In our Viewpoint (onlinelibrary.wiley.com/doi/abs/10.1...) we synthesize the gametic definition (outlined by Janicke et al below) and other definitions of sex (e.g., multivariate definition). We contend that is NO consensus on “biological sex” (maybe a consensus isn’t actually necessary…)

Madeline G. Eppley, PhD reposted

Replying to @pjie2.bsky.social

Let biological sex be multifaceted, as all biology is. And when you need to be precise in scientific research, be precise. Say ‘gametic sex’ or ‘chromosomal sex’ or ‘anatomical sex’, or whatever is appropriate to your own work.

Madeline G. Eppley, PhD reposted

today seems like a good day to repost our Viewpoint!!

Madeline G. Eppley, PhD@madeline-eppley.bsky.social

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science. onlinelibrary.wiley.com/doi/10.1111/...

3 Scientists Talk Queer Ecology! 🐠🦋🪲 www.possibilities.news/scientists-t... thank you to @yessfun.com for interviewing me and my friends-coauthors. we chat about ecology, queer identities, biological sex, and the current science-policy landscape. #PrideInSTEM 🏳️‍⚧️

possibilities.news3 Scientists Talk Queer EcologyThe federal government may shun research on queer ecology, but that's not stopping these three scientists.

At the #Evol2026 Science in Solidarity event (which was so great, thank you to the organizers!) we discussed how to navigate the media landscape to communicate science in trust-building ways. supporting independent newsletters/journalists is something we identified as an action item moving forward.

I’m presenting a poster on two (!) chapters of my PhD at #Evol2026 Drop by C-03 tomorrow (6/21) to chat with me about eastern oyster pop gen and genetic strategies of parasite mitigation. 🦪🦠 I’m also on the lookout for a postdoc 👀 and would love to connect with anyone about a potential good fit!

Although my poster only had space for some of the pop gen results, the rest is available as a preprint! We surveyed wild eastern oyster genomics from 40 pops across thousands of miles of seascape to characterize genetic structure, adaptive loci, structural variants, and human mediated impacts. 🦪🌊

biorxiv.orgRange-wide genetic population structure and environmental adaptation in the eastern oyster (Crassostrea virginica) provides insight for aquacultureSelective breeding in aquaculture is necessary to establish food security and meet demand for sustainably produced protein. An informed selective breeding program requires understanding how population...

Madeline G. Eppley, PhD reposted

✨🌈💡kicking off pride month by sharing our new article on using queer perspectives to improve practice in #ecology and #evolution. Bobby Dellinger presented a stellar overview of our work last month at the UCLA Thinking Gender 2026 conference, which you can watch here! #PrideInSTEM 🧪

youtube.comWhere Do We Go from Here? Harnessing Queer Perspectives to Advance Practice in EcologyYouTube video by Center for the Study of Women Streisand Center

Madeline G. Eppley, PhD reposted

This one hits home to the Polar Programs community.... "NSF continues to offer fellowship opportunities ...in the fields of engineering, entrepreneurial research, mathematics and physical sciences. ..postdocs in biology are available only if they involve the use of artificial intelligence." 🧪🌎🇦🇶🌊

eos.orgNSF Eliminates Geoscience Postdocs - EosThe National Science Foundation (NSF) has eliminated its postdoctoral fellowship funding for Earth scientists.

Madeline G. Eppley, PhD reposted

Want to hear about the next Benthics meeting? Join our new mailing list! #bem2027

benthicsmeeting.bsky.social@benthicsmeeting.bsky.social

Hey, all! We're starting to prep for Benthics 2027 - March 14-17 in Boston (new logos and things to come). To follow along and make sure you are updated, you can do two things! 1) Sign up for our NEW mailing list - benthics.org/mailman/list... 2) Check in on our new website at www.benthics.org

Madeline G. Eppley, PhD reposted

How connected are we to nature? A new report featuring research from Professors Brian Helmuth and John Coley explores how our relationship with nature impacts biodiversity and decision-making. Our choices matter more than we think. 🧪 Read more: https://bit.ly/4dr5Zc2 #COSConnects #MarineScience

bit.lyNature report links wildlife trends to human well-beingNortheastern scientists led a chapter on why the human connection to nature is important for the future of the planet.

Madeline G. Eppley, PhD reposted

🌎️Participatory fuzzy cognitive model reveals shallow and deep leverage points for agroecological adoption in Oaxaca, Mexico. The study illustrates a novel approach for bridging theory and practice toward a more equitable, sustainable future 📖 buff.ly/78HIXfo

Madeline G. Eppley, PhD reposted

Not all heroes wear capes, some are simply mollusks. 🦪 Dive below the surface of oyster restoration with Brianna and Kelsey from @nature.org on this month’s #TimeAndTide podcast episode! 🎧 Listen wherever you get your podcasts! 📷: Nate Gruen from PREP, highlighting a healthy NH oyster reefs.

Madeline G. Eppley, PhD reposted

Surprised to learn scientists can't agree on a definition of sex? Don't be! To be honest, we can't even agree on a definition of species. Many so-called natural categories are hard to define once we look at the evidence. Biology is too complex for simple definitions, which is a feature, not a bug.

"The fact that there is no current consensus of biological sex is not antithetical to science... However, the field urgently needs an ethical and reproducible approach for discussing sex" There is No Consensus on Biological Sex

Madeline G. Eppley, PhD reposted

Madeline G. Eppley, PhD reposted

Madeline G. Eppley, PhD reposted

Madeline G. Eppley, PhD reposted

Madeline G. Eppley, PhD reposted

Madeline G. Eppley, PhD reposted

Looks interesting after a short scan. I also note that a gamete based definition won’t work for the majority of extinct animals, beyond the extremely rare cases where a pregnant individual or gamete is preserved (as has happened with a handful of extinct fishes). Important to think about!

Madeline G. Eppley, PhD@madeline-eppley.bsky.social

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science. onlinelibrary.wiley.com/doi/10.1111/...

Madeline G. Eppley, PhD reposted

Fantastic paper! I was coincidentally thinking earlier today about how we sex baby juncos (genetic) and juveniles (wing size) and what the error rates are. I thought "at least we can tell for reproductive adults", but this paper reminded me that it's possible we're getting some of those wrong too.

Madeline G. Eppley, PhD@madeline-eppley.bsky.social

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science. onlinelibrary.wiley.com/doi/10.1111/...

Madeline G. Eppley, PhD reposted

ICYMI: in our new paper, we contend there is "no current consensus on a definition of sex that is free of assumptions and limitations... and most importantly,...no biological definition of sex should be used to dictate human rights" #evolsky #LGBTQSTEM #ecology #evolution #biologicalsex

Madeline G. Eppley, PhD@madeline-eppley.bsky.social

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science. onlinelibrary.wiley.com/doi/10.1111/...

Madeline G. Eppley, PhD reposted

I am still actively looking for postdoc positions — please lmk if you (or your friends and colleagues) need a hardworking postdoc with field, lab, and bioinformatic skills! I am broadly interested in evolution in the ocean, conservation and population genetics, and rapid evolution.

Andy Lee, PhD@andylee.bsky.social

Successfully added a few letters to my name last month!!! Truly could not have done this with our villages upon villages 🫶🏼

Madeline G. Eppley, PhD reposted

Eppley et al (2026) "We believe that acknowledging limitations and assumptions of current definitions of sex will lead to more accurate science." 🧪

Gregor Kalinkat@gkalinkat.bsky.social

"Here, we evaluate the primary approaches to defining sex and...conclude that there is no current consensus on a definition of sex that is free of assumptions and limitations... Most importantly,...no biological definition of sex should be used to dictate human rights" 🧪🔓 doi.org/10.1111/ele....