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Mark Bitter

@markcbitter.bsky.social
259 followers 289 following 63 posts

Postdoc at Stanford University. Interested in pop. gen., adaptation, and a wholesome scientific community. he/him

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Reposted by Mark Bitter
Pleuni Pennings @pleunipennings.bsky.social · 29/09/2026
I am hiring a postdoc! Are you interested to work on population genetics/ drug resistance/ data? Want to work in Montpellier, France? Fastq files don't scare you? PhD required, start date hopefully Nov 1! (end date Sep 30 2028) Please share! abetterscientist.wordpress.com/2026/09/29/p...
abetterscientist.wordpress.com
Postdoc position on drug resistance evolution in Montpellier, France
I have some exciting news (again!). I got money from the region (Occitanie) to hire a postdoc (and later an engineer / technician) to work on drug resistance evolution in malaria (P. faciparum) and…
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Sasha (Alexandra) Khristich @khristich.bsky.social · 22/09/2026
I’m excited to share our preprint with @oliviamghosh.bsky.social, where we explore what it takes to ‘win’ in long-term evolutionary competition: www.biorxiv.org/content/10.1...
biorxiv.org
Adaptive evolution can overwrite initial natural fitness variation only in highest-fitness yeast isolates
The fitness of an organism determines its likelihood of succeeding in short-term competition, but many other factors can influence its long-term success. In this study, we investigate the relative con...
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Bernard Kim @bernardkim.bsky.social · 15/09/2026
Princeton EEB is running a very broad faculty search at the Assistant Professor level. Please consider applying to join us! This is a wonderful, collaborative, cohesive department with diverse interests and amazing colleagues. apply.interfolio.com/193474
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Karen Shih @karenyshih.bsky.social · 28/08/2026
Really excited to share that work from my PhD is now on bioRxiv! We ask: Is the transcriptional response to high tumor mutational burden (TMB) consistent across cancers, or does it vary by cancer type? www.biorxiv.org/content/10.6...
biorxiv.org
Transcriptional Response to Tumor Mutational Burden Is Consistent Across Cancer Types
Tumor mutational burden (TMB) shapes tumor transcriptional state, but studies typically describe this response as an average effect pooled across cancer types. Whether that average reflects a consiste...
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Moi Expósito-Alonso (MOILAB) @mexpositoalonso.bsky.social · 11/08/2026
We are looking for an **assistant professor in ecology** in our integrative biology department, a vibrant dept focused on ecology, evolution, organismal biology, with several linked centers including natural history collections! PLEASE APPLY! aprecruit.berkeley.edu/JPF05489
aprecruit.berkeley.edu
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Julia Kreiner @jmkreiner.bsky.social · 31/07/2026
uchicago.wd5.myworkdayjobs.com/External/job... The Kreiner and Carley Lab groups are hiring a shared Research Analyst to help lead wet lab protocol development and management. We're a fun group and would love to hear from you :) Get in touch with questions!
uchicago.wd5.myworkdayjobs.com
Research, Analyst
Department BSD E&E Carley Lab About the Department The Kreiner Lab (kreinerlab.com) and Carley Lab (carleylab.uchicago.edu) in the Department of Ecology & Evolution at The University of Chicag...
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Dmitri Petrov @petrovadmitri.bsky.social · 15/07/2026
Cannot be more excited about the lineup for the inaugural Function of Evolving Systems GRC conference I am co-organizing with the amazing Joy Bergelson. Less than a month away: August 9 - 14, 2026. Still a few spots left! And do check out the amazing list of speakers: www.grc.org/function-of-...
grc.org
2026 Function of Evolving Systems Conference GRC
The 2026 Gordon Research Conference on Function of Evolving Systems will be held in Waterville Valley, New Hampshire. Apply today to reserve your spot.
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Katherine Xue @ksxue.bsky.social · 26/05/2026
Do you love amplicon sequencing? Do you want to sequence MORE amplicons, faster and at lower cost? Check out 💘CUPID-seq💘, a highly multiplexed library design that lets you sequence hundreds of amplicon samples (16S, 18S, and more!) on a single sequencing run! (1/n) 🧵 www.biorxiv.org/content/10.6...
The CUPID-seq logo, which consists of a heart formed from two strands of DNA that then combine to produce an arrow.
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Society for the Study of Evolution @sse-evolution.bsky.social · 24/04/2026
We are pleased to recognize two Honorable Mentions for the SSE Presidents’ Award this year: Skylar Berardi and Miles Roberts for their papers in Evolution Letters! shorturl.at/CpcoY @evolletters.bsky.social
Text: Society for the Study of Evolution, SSE Presidents' Award Honorable Mentions: Skylar Berardi, Drosophila melanogaster pigmentation demonstrates adaptive phenotypic parallelism over multiple spatiotemporal scales, Miles Roberts, k-mer-based diversity scales with population size proxies more than nucleotide diversity in a meta-analysis of 98 plant species.
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Nandita Garud @nanditagarud.bsky.social · 31/03/2026
I am excited to share our latest paper, Uniform bacterial genetic diversity along the gut, now out in Nature Communications! www.nature.com/articles/s41.... (1/n)
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Olivia Ghosh @oliviamghosh.bsky.social · 30/03/2026
Really excited that this major work from my PhD is finally published in @plosbiology.org ! In it, we were trying to tackle a fundamental question in evolution - how do genetic mutations map onto evolutionary fitness? (1/n) journals.plos.org/plosbiology/...
journals.plos.org
Genotype-fitness mapping of adaptive mutants reveals shifting low-dimensional structure across divergent environments
Predicting the effect of a genetic mutation on fitness is a major challenge in evolutionary biology. This study uses fitness effects of a large collection of adaptive yeast mutants in multiple lab env...
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Luisa F. Pallares @luisapallares.bsky.social · 23/02/2026
Have you ever wondered 🤔... Does phenotypic variance respond to environmental perturbation? Does it have a genetic basis? Are mean and variance regulating loci exposed to different selection pressures? These and more questions are explored in our new preprint 🔥 www.biorxiv.org/content/10.6...
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Nandita Garud @nanditagarud.bsky.social · 12/02/2026
I am seeking a postdoc to join my group at UCLA -- ideally the candidate would have some experience in either population genetics or microbes/microbiome (computational background needed). We have a range of projects and are happy to tailer to your interests. Please dm/email me if interested.
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Jeffrey Perkel (he/him) @jperkel.bsky.social · 11/02/2026
Scientists across the career spectrum are burnt out, & people are leaving STEM in startling numbers, particularly those from under-represented groups. A lab handbook can foster a more positive research culture. By @scattercushion.bsky.social @nature.com 🧪 www.nature.com/articles/d41...
nature.com
Lab morale got you down? Try a handbook
Documents that lay out a research group’s ethos and practical guidelines are becoming increasingly popular in the academic community.
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Noah Whiteman @nkwhiteman.bsky.social · 04/02/2026
Very excited to be going to the Annual Drosophila Research Conference @genetics-gsa.bsky.social in Chicago this March. I think #Dros26 is the hashtag. There is still time for you to register! The fly community is so welcoming and supportive—if you are new to flies please consider going.
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Rush Dhillon, PhD | Cartoonist & Illustrator @rushstudio.bsky.social · 30/01/2026
Excellent piece by Matz @heatshok.bsky.social and colleagues discussing the dire status of Caribbean reefs, and potential plans and policies that can be implemented if these reefs are to have any chance. Check it out in PNAS!
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Dmitri Petrov @petrovadmitri.bsky.social · 29/01/2026
Registration is open for the inaugural GRC conference in the Function of Evolving Systems. Aug 9-14, 2026, Waterville Valley. Truly stellar speaker lineup. Student/postdoc fellowships are available! Please come join us! www.grc.org/function-of-... @joybergelson.bsky.social
grc.org
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Joao Ascensao @joaoascensao.bsky.social · 27/01/2026
How does the strength of genetic drift evolve over long times? New preprint out 👇 www.biorxiv.org/content/10.6...
biorxiv.org
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Grant Kinsler @grantkinsler.bsky.social · 18/12/2025
Excited that SpaceBar is now out in Nature Methods!🥳 We combined clone tracing with spatial transcriptomics to untangle what drives gene expression in tumors: a cell's identity or its neighborhood? Most genes were driven by location, but some showed strong clonal patterns. rdcu.be/eVhpc
rdcu.be
SpaceBar enables single-cell-resolution clone tracing with imaging-based spatial transcriptomics
Nature Methods - SpaceBar is a cellular barcoding strategy for simultaneous analysis of cell clonal and spatial identities.
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Ricky Wolff @rwolff.bsky.social · 17/12/2025
Working on this paper fundamentally changed how I thought about bacterial evolution, and I couldn't ask for a better to Hannukah present than to see it out, at last!
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Nandita Garud @nanditagarud.bsky.social · 17/12/2025
If you are interested in this work and are looking for a postdoc position, please get in touch -- we are actively looking for someone to join our group at UCLA!
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Nandita Garud @nanditagarud.bsky.social · 17/12/2025
Grateful to share our paper on gene-specific selective sweeps in human gut microbiomes, now out in Nature! It has been a joy to work with @rwolff.bsky.social, whose insights and hard work made this possible. www.nature.com/articles/s41...
nature.com
Gene-specific selective sweeps are pervasive across human gut microbiomes - Nature
Development and application of the integrated linkage disequilibrium score (iLDS) reveals both selective pressures impacting the human gut microbiome and the mechanisms by which gut bacteria adapt to ...
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Alison Feder @alisonfeder.bsky.social · 10/12/2025
So excited to share this work led by @alexrob.bsky.social with Ben Kerr! We investigated a poliovirus capsid inhibitor that exploits a breakdown in the genotype-phenotype map to prevent drug resistance evolution. Or does it? See Alex's thread, but a few extras: #socialviruses #evosky #virosky 🧪
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Mark Bitter @markcbitter.bsky.social · 18/11/2025
Genuinely one of the most important and interesting papers I have been a part of! Relevant to fundamental questions regarding the predictability of adaptation, as well as the applications of genomic data. Congrats to @j-smiley-rhodes.bsky.social and all co-authors for such a masterpiece!
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Sophie Jean Walton @sophiejwalton.bsky.social · 11/11/2025
Super excited that the bulk of my PhD work is now preprinted! Here we used whole-community competition, or coalescence, experiments to quantify selection acting on genetically diverged strains within larger communities. (1/n) www.biorxiv.org/content/10.1...
biorxiv.org
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José Aguilar-Rodríguez @jaguilarrod.bsky.social · 22/10/2025
One of the most exciting works of my career, years in the making. We used high-throughput precision genome editing to test the fitness effects of thousands of natural variants. Our findings challenge the long-held assumption that common variants are inconsequential. www.biorxiv.org/content/10.1...
biorxiv.org
Massively parallel interrogation of the fitness of natural variants in ancient signaling pathways reveals pervasive local adaptation
The nature of standing genetic variation remains a central debate in population genetics, with differing perspectives on whether common variants are almost always neutral as suggested by neutral and n...
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Jukka-Pekka Verta @jpverta.bsky.social · 07/10/2025
One week to apply for our fully funded PhD position in Norway! This is a really exciting project in collab. with University of Helsinki and Benchmark Genetics. Samples are ready - you do (read: learn) everything - functional genomics, bioinformatics, genotype-phenotype associations 🤩 Please RT!
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Julia Kreiner @jmkreiner.bsky.social · 06/10/2025
Human-mediated land-use and climate change occur simultaneously, but how do they interact to shape adaptive dynamics? Super excited to share the first paper from the Kreiner lab, led by postdoc extraordinaire @rpineau.bsky.social
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Sam Bogan @snbogan.bsky.social · 16/09/2025
New preprint led by undergrad Owen Moosman! We uncover extensive haplotype diversity in antifreeze protein gene copy number in polar Zoarcoidei fishes, and report new tools to evaluate assembly uncertainty and switch error in phased genomes www.biorxiv.org/content/10.1...
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Dmitri Petrov @petrovadmitri.bsky.social · 15/09/2025
Very excited to see this work in press! I think there is a reason to believe that this is a common means of stabilizing large-effect polymorphisms in general and might be an important reason for why diploidy is so common. news.stanford.edu/stories/2025...
news.stanford.edu
Classic recessive-or-dominant gene dynamics may not be so simple
New fruit fly research provides the first direct evidence of “dominance reversal,” revealing why pesticide resistance is so hard to eliminate in changing environments.
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Marianna Karageorgi @mkarag.bsky.social · 15/09/2025
How do populations maintain an evolutionary memory? I am happy to share that our work with Dmitri Petrov @petrovadmitri.bsky.social, Paul Schmidt, and colleagues on dominance reversal and stabilization of insecticide resistance in changing environments over time is now published at Nature EE.
nature.com
Beneficial reversal of dominance maintains a large-effect resistance polymorphism under fluctuating insecticide selection - Nature Ecology & Evolution
Measuring selection and dominance in fitness of the insecticide-resistant Ace alleles in Drosophila melanogaster, the authors show evidence for beneficial reversal of dominance, a mechanism that can s...
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Skyler Berardi @skylerberardi.bsky.social · 31/07/2025
Check out our paper in Evolution Letters! We used D. melanogaster pigmentation as a focal trait to explore parallelism in phenotypic and genomic responses to environmental change - read more at the link below 👇
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Nandita Garud @nanditagarud.bsky.social · 22/07/2025
I am seeking a postdoc for my group at UCLA. We work at the intersection of population genetics x microbiome (garud.eeb.ucla.edu). If interested, please message me!
garud.eeb.ucla.edu
Garud Lab
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Kirk Lohmueller @klohmueller.bsky.social · 23/07/2025
Come join us at UCLA!!! We have a growing population genetics community here and Nandita and her lab are outstanding!
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Katherine Xue @ksxue.bsky.social · 17/07/2025
The Xue lab at UC Irvine is looking for a staff scientist to support our work investigating how microbes interact and evolve in the gut microbiome! Open to a wide range of previous experience levels, see ad for more. recruit.ap.uci.edu/JPF09601
recruit.ap.uci.edu
Junior, Assistant, or Associate Specialist – Xue Lab
University of California, Irvine is hiring. Apply now!
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Dmitri Petrov @petrovadmitri.bsky.social · 27/06/2025
We are recruiting students who are thinking of applying to Biology PhD programs this fall to apply for the Stanford Biology Preview Program. Please spread the word!
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Manuel Razo @mrazo.bsky.social · 15/05/2025
1/n 🧵 Excited to share our new paper! We developed a framework to reveal hidden simplicity in how organisms adapt to different environments, particularly focusing on antibiotic resistance evolution. #EvolutionaryBiology #MachineLearning
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Ben Moran @ben-moran.bsky.social · 01/05/2025
1/9 Excited to share the preprint for the second half of my PhD with @mollyschumer.bsky.social: Connecting human environmental impacts to hybridization in swordtail fish through genomics, GIS, water chemistry, and histology. Thread below! #SciSky www.biorxiv.org/content/10.1...
biorxiv.org
Increased rates of hybridization in swordtail fish are associated with water pollution
Biodiversity loss can occur when disturbance compromises the reproductive barriers between species, causing them to collapse into a single population through hybridization. Recent research has documen...
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James Hemker @jahemker.bsky.social · 25/04/2025
Excited to share the first manuscript from my PhD in which we leveraged ultra-long Nanopore sequencing, D. melanogaster inbred lines, and a ton of manual validation to investigate the effects of long-read length on population-level structural variant (SV) calling accuracy! doi.org/10.1101/2025...
doi.org
Manual validation finds only ultra-long long-read sequencing enables faithful, population-level structural variant calling in Drosophila melanogaster euchromatin
The increasing accessibility of long-read sequencing and the rapid development of automated variant callers are promoting the generation of population-level structural variation data. However, the eff...
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Tami Lieberman @contaminatedsci.bsky.social · 07/04/2025
Our commentary on the elegant in vitro microbiome coalescence experiments from @goldmandoran.bsky.social @ksxue.bsky.social et al is out. It was a pleasure to write about one of my favorite microbiome papers of the last few years. www.pnas.org/doi/10.1073/...
pnas.org
Mixing microbiomes in vitro reveals rules of community assembly | PNAS
Mixing microbiomes in vitro reveals rules of community assembly
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Maike Morrison @maikemorrison.bsky.social · 14/03/2025
1/ Hey y'all, I'm excited to share my latest paper, which is out now in PNAS! We introduce FAVA, a statistical framework to measure compositional variability across microbiome samples. If you want to measure variability across a stacked bar plot, FAVA is for you! Paper: doi.org/10.1073/pnas...
5 relative abundance plots arranged to have increasing compositional variability (variability across relative abundance samples, here vertical bars)
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lisacouper.bsky.social @lisacouper.bsky.social · 20/02/2025
Thank you for the coverage! Excited that this work, in collaboration with @markcbitter.bsky.social and many others, is now out!
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UC Berkeley School of Public Health @publichealth.berkeley.edu · 20/02/2025
A new study led by #EnvironmentalHealth postdoc Lisa Couper finds #mosquitoes may genetically adapt to #ClimateChange more than expected. Her team's findings show increasing risk of #WestNileVirus, #Malaria & other diseases due to the insects' heat tolerance. #GlobalWarming ow.ly/Uzro50V3BRl
ow.ly
New research shows mosquitoes may be able to adapt to warming temperatures
The heat tolerance the research team saw “exceeds that of projected climate warming,” according to the published paper.
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Matt Rockman @wormsrock.bsky.social · 10/02/2025
Late-stage PhD students: We want to bring you to NYU Biology to meet peers and make connections with potential postdoctoral mentors. Apply to be part of our Emerging Scholars Symposium!
as.nyu.edu
Emerging Scholars Symposium 2025
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Harmit Singh Malik @harmitmalik.bsky.social · 28/01/2025
If you have been affected by the fires in LA, or are concerned about your ability to keep precious Drosophila strains going during the latest funding crisis, we will host your strains as a backup. Please email me. Please amplify. If you are also able to host fly strains, add your name as well.
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Charikleia Karageorgiou (Clio) @evobioclio.bsky.social · 28/01/2025
Join us at the Gordon Research Seminar (GRS) on Ecological and Evolutionary Genomics in Tuscany, co-chaired by @jcbnunez.bsky.social and me. If you’d like to present your research and be considered for a talk, make sure to submit your application before April 6th!
grc.org
2025 Ecological and Evolutionary Genomics (GRS) Seminar GRC
The 2025 Gordon Research Seminar on Ecological and Evolutionary Genomics (GRS) will be held in Lucca (Barga), Lucca Italy. Apply today to reserve your spot.
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Seungsoo Kim @seungsookim.bsky.social · 20/01/2025
Hello Bluesky friends! I am a #newPI starting at UC Irvine in April, interested in gene regulation and functional genomics in stem cell models of development (esp neural crest). We are hiring at all levels – please reach out/spread the word! sskimlab.org
sskimlab.org
Kim Lab at UC Irvine
Visit the post for more.
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Marianna Karageorgi @mkarag.bsky.social · 22/01/2025
How is functional variation at large-effect loci maintained in natural populations? Thrilled to share our work showing how beneficial dominance reversal helps fruit flies maintain a resistance polymorphism as selection varies in their environment! A thread 🧵 1/n www.biorxiv.org/content/10.1...
biorxiv.org
Dominance reversal maintains large-effect resistance polymorphism in temporally varying environments
A central challenge in evolutionary biology is to uncover mechanisms maintaining functional genetic variation1. Theory suggests that dominance reversal, whereby alleles subject to fluctuating selectio...
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Mark Bitter @markcbitter.bsky.social · 21/01/2025
Thrilled to see this work, led by @lisacouper.bsky.social now out! We quantified variation in thermal tolerance in the mosquito, Aedes sierrensis, to quantify how adaptation may alter disease vector distributions under warming. 🧵 www.pnas.org/doi/10.1073/...
pnas.org
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Mark Bitter @markcbitter.bsky.social · 21/01/2025
Thrilled to see this work, led by @lisacouper.bsky.social now out! We quantified variation in thermal tolerance in the mosquito, Aedes sierrensis, to quantify how adaptation may alter disease vector distributions under warming. 🧵 www.pnas.org/doi/10.1073/...
pnas.org
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