northeastern university marine science center 🌊
marine pop gen, conservation, disease ecology, and lots of 🦪
{currently looking for a postdoc!}
https://linktr.ee/madelineeppley 🦈🏳️🌈🦀
woah i will be defending soon!! 🦪🦪🦪 message me your email if you’d like the zoom link or come on out to the Marine Science Center if you’re in the boston area!! 🤠 @northeasternmes.bsky.social
I am excited to share that my first PhD chapter is out now!
We surveyed wild eastern oysters across thousands of miles of seascape to characterize population structure, identify genomic targets for aquaculture breeding, and reveal complex patterns of human impacts 🌊🦪🧬
with @drk-lo.bsky.social
1/6
This project was an immensely collaborative effort and I am especially grateful for all of the oyster sampling help! Also, shoutout to a few Lotterhos lab alumni (my former mentees!) who were coauthors on the manuscript:
@elisabethleung.bsky.social@kiranbajaj.bsky.social
& Nicole Mongillo
5/6
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
I am excited to share that my first PhD chapter is out now!
We surveyed wild eastern oysters across thousands of miles of seascape to characterize population structure, identify genomic targets for aquaculture breeding, and reveal complex patterns of human impacts 🌊🦪🧬
with @drk-lo.bsky.social
1/6
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
I am excited to share that my first PhD chapter is out now!
We surveyed wild eastern oysters across thousands of miles of seascape to characterize population structure, identify genomic targets for aquaculture breeding, and reveal complex patterns of human impacts 🌊🦪🧬
with @drk-lo.bsky.social
1/6
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
Congratulations to Andy Lee @andylee.bsky.social, winner of the 2026 Harry Smith Prize for his work on the genetic basis of adaptation in a range-expanding marine species with high dispersal. Andy recently defended his PhD at Purdue University.
Read More: buff.ly/w8GY8u1
(1/2)
EEB Mentor Match is now open! But apps due soon (8/17).
Mentees: get help applying for grad school or fellowships in ecology & evolution.
Mentors: senior grads, post-docs, or faculty in these fields willing to give advice
Org by Diversity Cmte of @asn-amnat.bsky.social
Pls share!
eebmentormatch.com
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!
🚨 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!!
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...
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…)
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/...
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…)
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.
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 🏳️⚧️
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. 🦪🌊
Why did oysters struggle to survive last winter's deep freeze? With New England shellfish farmers losing up to 50% of their yields, @seagrant.whoi.edu experts say it may be time to explore new techniques.
📲Get the full story from @bostonglobe.com: go.whoi.edu/bg-oyster
✨🌈💡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 🧪
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." 🧪🌎🇦🇶🌊
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
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
🌎️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
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.
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
Just a reminder - if you are looking to advertise opportunities in marine science in the New England area, or look for marine science opportunities in the marine science area, the New England Marine Science opportunities listserv is your place to be! groups.google.com/g/ne_marine_... 🧪🌊🌍
Excited to see this out after years of work from many folks in the field and lab. @ben-glass.bsky.social did such a lovely job of doing this work justice! 2023 heatwave was no joke in Bocas.....
Global Change Biology | onlinelibrary.wiley.com/doi/10.1111/...
What is the relationship between science and society? How does culture impact the production and dissemination of knowledge? In this new paper, Eppley et al interrogate how systems of oppression bias our research, and how Queer perspectives can address these. onlinelibrary.wiley.com/doi/10.1002/...
Seasonal job available in Burlington, VT in invasive pest ecologcal genomics! The successful candidate will work with myself and @jcbnunez.bsky.social on seasonal adaptation in Drosophila susukii. #popGen#evolution#genomics 🧪🧬🖥️ Apply by April 7: northeastern.wd1.myworkdayjobs.com/careers/job/...
Excited to share our new paper, “Microbial ecology for all: A vision of accessibility, unity, and responsibility.” Thankful to the people I worked with on this and to be growing as an early-career researcher in the field!! 🍄 esajournals.onlinelibrary.wiley.com/doi/10.1002/...
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!
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/...
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.
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/...
I’m really excited to have recently published my first chapter of my dissertation, which is also my first ever first author paper! 🌟 We identified a basin-wide pathogen candidate for white band disease in the Caribbean! 🪸🧪 doi.org/10.1093/isme...
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
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/...
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.
"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....