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Anna Hewett

@annamhew.bsky.social
231 followers 204 following 15 posts

Post-doc at UNIL | Inbreeding depression, quant gen and statistical genetics in wild populations 🦉🦌 | Happiest when gallivanting outside 🏊‍♀️🚴‍♀️🏃‍♀️🏔 | She / her

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Anna Hewett @annamhew.bsky.social · 05/08/2026
Beginning to think getting married, submitting a big grant and doing a half ironman all within 2 months of each other was not a good idea 🙃🙃 ... help
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Charles Mullon @charlesmullon.bsky.social · 03/08/2026
Looking for an Associate Prof position? Interested in behavioural ecology & cultural evolution? Come join us at the Dpt of Ecology and Evolution in Lausanne🇨🇭 @dee-unil.bsky.social @unil.bsky.social! Great department & great place to live. Pls RP. Apply here: wwwfbm.unil.ch/releve/appli...
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Stephanie L King @stephanielking.bsky.social · 25/07/2026
Another new paper out this week: A culturally transmitted foraging technique in Indo-Pacific bottlenose dolphins can be predicted by DNA-methylation levels royalsocietypublishing.org/rstb/article...
royalsocietypublishing.org
A culturally transmitted foraging technique in Indo-Pacific bottlenose dolphins can be predicted by DNA-methylation levels
Abstract. Cultural repertoires can influence access to resources and fitness across species, impacting individuals' environmental niches and social network
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Anna Hewett @annamhew.bsky.social · 22/07/2026
Last semester I had my first dealings with students clearly using AI ... the question was simple if you attended the course but took a few minutes of critical thinking.
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Katie Abson @katieabson.bsky.social · 30/06/2026
Our paper is out! 📣 we find that molecular measures of genetic variation do not predict heritable genetic variation across species - important implications for the application of genomic data for conservation! www.pnas.org/doi/10.1073/...
pnas.org
Nucleotide diversity is a poor predictor of short-term adaptive potential | PNAS
The capacity to adapt is essential for a population to avoid extinction in a changing world and is recognized as a global conservation priority. Ad...
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Anna Hewett @annamhew.bsky.social · 10/06/2026
📣 New paper out in ProcB📣 ... and we're on the cover! (Perks of having a beautiful study species) Find it here: royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Inbreeding depression in morphological and growth traits of wild barn owls (Tyto alba)
Abstract. Despite its detrimental effects, inbreeding depression in wild populations is relatively under-explored. Here, we use whole-genome sequence data
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Alexandros Topaloudis @topalwos.bsky.social · 29/04/2026
Are you looking to sequence a bunch of samples from a wild population in low-coverage but don't have a reference panel? You might be surprised how well it can work. See for yourself in our new benchmark study: doi.org/10.1093/molb...
doi.org
Benchmarking imputation accuracy in the presence or absence of a reference panel
Abstract. Whole genome sequencing (WGS) of a large number of samples is costly. Solutions include targeting a proportion of the genome (eg SNP arrays) or l
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Charles Mullon @charlesmullon.bsky.social · 22/04/2026
Applications now open for the UNIL Summer School on Modelling for Evolutionary Biology (31 Aug–5 Sep 2026, Lausanne)! For PhD & postdocs interested in formal approaches to evolutionary ecology (incl. social evo, life-history, species interactions). Scholarships available, Pls RP! shorturl.at/fo1GA
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Bertille Mohring @bertillemohring.bsky.social · 23/04/2026
📃New paper in Ecology letters 🐦 I’m delighted to share the publication of the first paper from my #postdoc with @samanthacpatrick.bsky.social looking at life-history trade-offs and #senescence in black-browed #albatrosses from Kerguelen and Bird Island doi.org/10.1111/ele.70384
doi.org
Environmental Variability Shapes Life‐History Trade‐Offs Within and Between Populations of a Long‐Lived Seabird
Life-history theory predicts a trade-off between allocation of resources to reproduction or self-maintenance, yet how environmental variability shapes this trade-off remains poorly understood. We sho...
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Thomas Lesaffre 🌱 @thomaslesaffre.bsky.social · 07/04/2026
🌺 PhD position in Theoretical Evolutionary Biology! 🌺 There is about two weeks left to apply to come work with me on the evolution of plant reproductive strategies at @unifr.bsky.social ! Contact me or visit here or for more info: tinyurl.com/monoecy Please share! 🌱
A view of the city of Fribourg, Switzerland
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Rob Waterhouse @rmwaterhouse.bsky.social · 17/02/2026
Postdoc @eawag.bsky.social apply.refline.ch/673277/1341/...
apply.refline.ch
Postdoctoral position in “Genomic signatures of adaptive evolution along the fast-slow life history continuum” (m/f/d) 80-100%
The Department of Systems Analysis, Integrated Assessment and Modelling (SIAM) has an opening for a
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Dom Cram @domcram.bsky.social · 05/02/2026
🚨 New paper 🚨 (1/8) In meerkats, pregnancy isn’t one-size-fits-all. Some mothers gain weight steadily, others delay all growth until the final weeks 📈 What drives this striking variation, and how does it affect the (adorable) pups? OA PAPER: doi.org/10.1111/1365... Details (+cute pics!) below👇
A tiny meerkat pup aged just a few weeks, emerging from the birth burrow in the Kalahari Desert.
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Davis Vaughan @davisvaughan.bsky.social · 04/02/2026
dplyr 1.2.0 is out now and we are SO excited! - `filter_out()` for dropping rows - `recode_values()`, `replace_values()`, and `replace_when()` that join `case_when()` as a complete family of recoding/replacing tools These are huge quality of life wins for #rstats! tidyverse.org/blog/2026/02...
tidyverse.org
dplyr 1.2.0
dplyr 1.2.0 fills in some important gaps in dplyr's API: we've added a new complement to `filter()` focused on dropping rows, and we've expanded the `case_when()` family with three new recoding and re...
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Paul Dufour @pauldufour80.bsky.social · 15/01/2026
🚨 PhD offer (please share) Fascinated by bird migration and movement ecology? 🦜🌍 Join us at @vogelwarte.bsky.social to study annual cycle energetics with multi-sensor loggers in multiple species Deadline: 20 Feb 2026 Starting: June 2026 Supervision: Martins Briedis & me Info: tinyurl.com/2dbv9nzh
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arsweeny.bsky.social @arsweeny.bsky.social · 24/11/2025
Interested in how life history may shape the gut microbiome of a wild mammal? Keen on getting to work with an iconic long-term study system in Scotland? Check out this PhD opportunity with me, Josephine Pemberton and @gfalbery.bsky.social Reach out to chat more! www.findaphd.com/phds/project...
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Anna Hewett @annamhew.bsky.social · 05/01/2026
An amazing online resource 🙏 I'll be following along!
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Katerina Guschanski @kguschan.bsky.social · 05/11/2025
Just over a month left to apply for scholarships on this project. We will run internal pre-selection interviews end of November, so if you consider applying, please reach out now. I can guarantee amazing scientific and intellectual environment at the Institute for Eco Evo @edinburghup.bsky.social
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Dom Cram @domcram.bsky.social · 17/10/2025
🚨Fully-funded PhD opportunity in my group🚨 🧬How does parental ageing shape the next generation?🐾 Find out by studying meerkats! 🧪Epigenetic clocks ✨Bioinformatics 📊Long-term data 🌍Kalahari fieldwork 💡Big evolutionary questions Get in touch or APPLY NOW Please share! www.uea.ac.uk/course/phd-d...
A collage featuring some laboratory analyses, a schematic of the structure of DNA, a pocket watch in an elderly person's hand, and a family of wild meerkats.
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Anna Hewett @annamhew.bsky.social · 07/10/2025
Exciting new pre-print from the group! Why and how are our owls getting redder over time? 🦉 Check it out on BioRxiv 👇👇
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Anna Hewett @annamhew.bsky.social · 02/10/2025
A couple of really cool conferences happening next summer on my birthday 🥲 I know many people have a conference birthday but I just can't bring myself to do it ... me and my partner usually go on holiday and yes I'm turning 30 next year 😬
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Edward R. Ivimey-Cook @eivimeycook.bsky.social · 18/09/2025
Our latest #SORTEE-led paper is out now in #ProcB! We reviewed data/code-sharing policy clarity, strictness & timing across 275 EcoEvo journals We also worked with #ProcB & #EcologyLetters to assess initial compliance with sharing mandates. Huge team effort! 👉 doi.org/10.1098/rspb...
doi.org
From policy to practice: progress towards data- and code-sharing in ecology and evolution | Proceedings of the Royal Society B: Biological Sciences
Data and code are essential for ensuring the credibility of scientific results and facilitating reproducibility, areas in which journal sharing policies play a crucial role. However, in ecology and evolution, we still do not know how widespread data- and ...
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Jocelyn Poissant @jocelynpoissant.bsky.social · 12/09/2025
www.nature.com/articles/s41...
nature.com
The future of polygenic risk scores in direct-to-consumer genomics - Nature Genetics
Nature Genetics - The future of polygenic risk scores in direct-to-consumer genomics
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Hui Zhen Tan @huizhentan.bsky.social · 03/09/2025
Genomic imputation can boost dataset quality and benefit research on wild populations. In hihi, we found high #imputation accuracies despite a small reference panel of high-fecundity individuals. Imputation improves downstream #ConservationGenomics analyses. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
High Imputation Accuracy Can Be Achieved Using a Small Reference Panel in a Natural Population With Low Genetic Diversity
Genotype imputation, the inference of missing genotypes using a reference set of population haplotypes, is a cost-effective tool for improving the quality and quantity of genetic datasets. Imputation...
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 22/08/2025
Growth effects and the underlying genetic architecture of inbreeding depression in a wild raptor www.biorxiv.org/content/10.1101/202…
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Anna Hewett @annamhew.bsky.social · 25/08/2025
Pre-print now out on bioRxiv! If you saw my talk at #eseb and want more info, here it is:
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Erik Postma @erikpostma.bsky.social · 22/08/2025
With #eseb2025 coming to a close, it is time to start making plans for 2026. Interested in the interface of evolution 🧬 and ecology 🌳? Come to our #ExE conference hosted by @uniexecec.bsky.social in beautiful #Cornwall. Leave your email address at tinyurl.com/EvolxEcol to join our mailing list!
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Anna Hewett @annamhew.bsky.social · 20/08/2025
I'll be presenting at #ESEB25 tomorrow! Pop along to room 114 @3:30 if you want to hear about inbreeding depression, hierarchical models and barn owls of course 🦉 S42.02 - looks like it's going to be a great session! 😊
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Adam Rutherford @adamrutherford.bsky.social · 12/04/2025
George RR Martin is an author on the dire wolf paper. Presumably to make sure there’s plenty of incest, cos these wolves will have no one else to fuck except each other.
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 17/02/2025
Wow. This is sooo good. Echoing @urbanevol.bsky.social this user’s manual for Ne should be required reading for popgen and conservation genetics folks. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Idiot's Guide to Effective Population Size
This is a reference manual for the elegant, yet hideously complex concept of effective population size (Ne), inspired by a classic, self-published manual of automotive repair ‘for the compleat idiot’...
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Charles Mullon @charlesmullon.bsky.social · 22/01/2025
1/7 Very happy to share our latest paper on the joint evolution of separate sexes and sexual dimorphism in @jevbio.bsky.social, led by @thomaslesaffre.bsky.social and in collaboration with John Pannell at @dee-unil.bsky.social 🔗 doi.org/10.1093/jeb/voae136
doi.org
The joint evolution of separate sexes and sexual dimorphism
Abstract. Dioecious plants are frequently sexually dimorphic. Such dimorphism, which reflects responses to selection acting in opposite directions for male
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Charles Mullon @charlesmullon.bsky.social · 24/01/2025
1/7 Sexual antagonism arises when males and females face different selection pressures for a trait influenced by shared genes. This is thought to drive balancing selection and maintain genetic polymorphism. We challenge this view in our recent paper : 🔗 doi.org/10.1093/evlett/qrae059
doi.org
The maintenance of genetic polymorphism underlying sexually antagonistic traits
Abstract. Selection often favors different trait values in males and females, leading to genetic conflicts between the sexes when traits have a shared gene
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Evolution Letters @evolletters.bsky.social · 24/01/2025
Inbreeding depression is more severe in harsher environmental conditions, as shown in a wild population doi.org/10.1093/evle... Now in @evolletters.bsky.social by @annamhew.bsky.social et al. 📷: Anna Hewett
A photograph of two red deer standing on a rock. Both deer are looking at the camera, and the individual on the left is wearing a radio transmitting collar.
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Anna Hewett @annamhew.bsky.social · 13/01/2025
📣 The final chapter of my PhD is now out in @evolletters.bsky.social !! 📣 🦌 Using genomic and fitness data from a long-term study of red deer we investigated the interaction between inbreeding depression and the environment (ID × E) doi.org/10.1093/evle...
doi.org
Fine-scale spatial variation in fitness, inbreeding, and inbreeding depression in a wild ungulate
Abstract. Environmental stress can exacerbate inbreeding depression by amplifying differences between inbred and outbred individuals. In wild populations,
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