Anna Hewett
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annamhew.bsky.social
Anna Hewett
@annamhew.bsky.social
Post-doc at UNIL | Inbreeding depression and quant gen in wild populations 🦉🦌 .. occasionally dabbling in popgen | Happiest when gallivanting outside 🏃‍♀️🏊‍♀️🚴‍♀️🏔 | She / her
Pinned
Pre-print now out on bioRxiv! If you saw my talk at #eseb and want more info, here it is:
Growth effects and the underlying genetic architecture of inbreeding depression in a wild raptor https://www.biorxiv.org/content/10.1101/2025.08.17.670740v1
Reposted by Anna Hewett
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
If you like genomics, speciation, and primates, this PhD position is for you! Unraveling the genomic architecture of speciation and gene flow in guenons, a diverse group of African monkeys. Funding through DTP. Do reach out with questions! #genomics #genome_assembly
evol.mcmaster.ca/brian/evoldi...
November 5, 2025 at 10:01 AM
Reposted by Anna Hewett
🚨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...
October 17, 2025 at 9:12 AM
Exciting new pre-print from the group! Why and how are our owls getting redder over time? 🦉

Check it out on BioRxiv 👇👇
Genomic bases of short-term evolution in the wild revealed by long-term monitoring and population-scale sequencing https://www.biorxiv.org/content/10.1101/2025.10.01.679793v1
October 7, 2025 at 2:06 PM
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 😬
October 2, 2025 at 1:52 PM
Reposted by Anna Hewett
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...
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 ...
doi.org
September 18, 2025 at 8:22 AM
Reposted by Anna Hewett
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/...
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...
onlinelibrary.wiley.com
September 3, 2025 at 3:45 AM
Reposted by Anna Hewett
Growth effects and the underlying genetic architecture of inbreeding depression in a wild raptor https://www.biorxiv.org/content/10.1101/2025.08.17.670740v1
August 22, 2025 at 1:32 PM
Pre-print now out on bioRxiv! If you saw my talk at #eseb and want more info, here it is:
Growth effects and the underlying genetic architecture of inbreeding depression in a wild raptor https://www.biorxiv.org/content/10.1101/2025.08.17.670740v1
August 25, 2025 at 7:42 AM
Reposted by Anna Hewett
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!
August 22, 2025 at 1:32 PM
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! 😊
August 20, 2025 at 4:30 PM
Reposted by Anna Hewett
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.
April 12, 2025 at 7:35 AM
Reposted by Anna Hewett
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/...
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’...
onlinelibrary.wiley.com
February 17, 2025 at 6:26 PM
Reposted by Anna Hewett
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
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
doi.org
January 22, 2025 at 1:37 PM
Reposted by Anna Hewett
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
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
doi.org
January 24, 2025 at 2:52 PM
Reposted by Anna Hewett
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
January 24, 2025 at 5:56 PM
📣 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...
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,
doi.org
January 13, 2025 at 1:15 PM