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Reposted by Andy Gardner

rachelignotofsky.bsky.social
Illustration of the Silurian Period based on fossils in Scotland.

The first animals to live on land were tiny arthropods, escaping predators and eating food in fields of cooksonia plants.

Art from my new book DINOSAURS preorder here: a.co/d/fGVwsX0

#sciart #paleoart #evolution #fossiladdict
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Reposted by Andy Gardner

mhedin.bsky.social
new paper, led by Lin Yan from the Elias Lab at UCB

Latent preference for red ornamentation drives interspecific mating in nascent jumping spider species (Habronattus americanus group, F. Salticidae)
Proceedings of the Royal Society B: Biological Sciences
royalsocietypublishing.org/doi/10.1098/...
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Reposted by Andy Gardner

kokkonut.bsky.social
#ESEB2025 Very concentrated looks when @shikharabhat.bsky.social educates us about pop noise! One of the last talks I could attend, sorry I had to leave early (planned, still 🫤) The lab's presence continues without me so grab them for a science chat!
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Reposted by Andy Gardner

andygardner.bsky.social
And Chedhawat Chokechaipaisarn, whose poster "The consequences of constrained sex allocation under local mate competition" (P02.036) is in Tuesday's session.

This is based on his recent paper in Journal of Evolutionary Biology:

doi.org/10.1093/jeb/...

@jevbio.bsky.social @eseb2025.bsky.social
Photo of Chedhawat Chokechaipaisarn
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Reposted by Andy Gardner

andygardner.bsky.social
Two other members of the research group have successfully made it to @eseb2025.bsky.social ahead of me.

Look out for @kztwyman.bsky.social, whose poster "A formal theory of group-level adaptation for obligate eusociality" (P01.068) is in this evening's session.
Photo of Kalyani Twyman.
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Reposted by Andy Gardner

shikharabhat.bsky.social
Hey #ESEB2025 folk! I'll be presenting my work on describing evolution in finite populations at 11:30 am on Tuesday in S-03. Drop by to learn how taking ecology and variable population size seriously changes classic pop gen descriptions like the Price eqn, revealing novel directional eco-evo forces.
An illustration with populations on the left and mathematical representations of these populations in terms of birth-death processes on the right Stochastic differential equations for trait frequencies, mean value of a trait, and the variance of a trait in the population
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Reposted by Andy Gardner

gauravathreya.bsky.social
hello to everyone going to #ESEB2025! want to hear about the consequences of age-dependent plasticity in reproducing via sex vs. asex? I will give a talk at 11:15am on Thursday in S15.02. come for the pretty Hydra illustrations, stay for the novel evolutionary insights on facultative sex!
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Reposted by Andy Gardner

kztwyman.bsky.social
Really happy to share this article I'm grateful to have been a part of: 'Impediments to countering racist pseudoscience' coauthored with @kevinlala.bsky.social, @gillianrbrown1.bsky.social and Marcus Feldman. Check out a preprint here: www.cambridge.org/core/journal...
#ScientificRacism #Antiracism
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Reposted by Andy Gardner

andygardner.bsky.social
New paper: "R.A. Fisher on J.A. Cobb's The Problem of the Sex-Ratio" (OpenAccess)

hdl.handle.net/10023/28453

"Fisher's principle" of the sex ratio was first given by Cobb in 1914. Here I show that Fisher was aware of Cobb's paper.
Notes and Records: the Royal Society journal of the history of science.
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by Andy Gardner — Reposted by Andy Gardner

andygardner.bsky.social
New paper: "The consequences of constrained sex allocation in diploids and haplodiploids under local mate competition", with Chedhawat Chokechaipaisarn:

doi.org/10.1093/jeb/...

@jevbio.bsky.social
Figure 1. Unbeatable sex allocation strategy of unconstrained females (r*) as a function of proportion of constrained females (p) under local mate competition with two foundresses colonising the patch. Shown are the result for Godfray’s (1990) erroneous diploidy solution (dashed grey line), our corrected diploidy solution (solid grey line), and our haplodiploidy solution (solid black line). Overlaid are results from individual-based simulations (discs).
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Reposted by Andy Gardner

kztwyman.bsky.social
Very excited to share that our paper, ‘The clonality window: relatedness and the group covariance effect in the evolution of division of labour’, is out now in @journal-evo.bsky.social advances. With @andygardner.bsky.social

doi.org/10.1093/evol...

#OpenAccess #Evolution #Multicellularity
The clonality window: relatedness and the group covariance effect in the evolution of division of labour
Abstract. Cellular division of labour is closely associated with the emergence of organismality in the evolution of obligate multicellularity. Michod has s
doi.org
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by Joanna Bryson — Reposted by Andy Gardner

andygardner.bsky.social
New paper: "Faster adaptation but slower divergence of X chromosomes under paternal genome elimination" (Open Access)

w/ Robert Baird, @imprintedgene.bsky.social‬, Jan Ševčík, Katy Monteith, @laurarossevo.bsky.social‬ & @ajmongue.bsky.social‬

www.nature.com/articles/s41...

‪@natcomms.nature.com‬
Faster adaptation but slower divergence of X chromosomes under paternal genome elimination - Nature Communications
X chromosomes evolve faster than autosomes, but confounding factors make this a difficult phenomenon to study. Utilising the unusual sex determination system of Sciaridae flies, this study finds a slo...
www.nature.com
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Reposted by Andy Gardner

Does anyone wanna do the young human geneticists networking event but not get a ticket yet, I will have an unused ticket. Please reply to me if you’d like to purchase it off me. Thanks!!! #eshg2025 #eshg
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Reposted by Andy Gardner

silparacchini.bsky.social
Find the us, St Andrews Neurogenetics group, at #eshg2025 🧠🧬
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by Andy Gardner — Reposted by Andy Gardner, Marc Strous

andygardner.bsky.social
New paper: “The clonality window: relatedness and the group covariance effect in the evolution of division of labour”, with @kztwyman.bsky.social #OpenAccess

doi.org/10.1093/evol...

@journal-evo.bsky.social #Image: #ChatGPT #Evolution #OA
AI-generated image using the paper's title and abstract as input.
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Reposted by Andy Gardner

royalsocietypublishing.org
Sex-ratio optima for haplodiploid parents converge in viscous populations when dispersal is density-dependent. Read 'Density-dependent dispersal reduces conflict over the sex ratio': royalsocietypublishing.org/doi/10.1098/... #BiologyLetters #evolution
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Reposted by Andy Gardner

tomwscott.bsky.social
New paper with @andygardner.bsky.social and @geoffwild.bsky.social in which we ask whether the ability to recognise relatives causes individuals to be more or less cooperative overall.

doi.org/10.1093/evol...
Kin-discriminating partner choice promotes the evolution of helping
Abstract. Kin selection theory predicts that individuals should evolve to help relatives, either by helping indiscriminately in a population where they do
doi.org
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by Andy Gardner — Reposted by Andy Gardner

andygardner.bsky.social
New paper: "Kin-discriminating partner choice promotes the evolution of helping"

with Tom Scott (@tomwscott.bsky.social) & Geoff Wild (@geoffwild.bsky.social) #OpenAccess

doi.org/10.1093/evol...

@journal-evo.bsky.social #Image: #ChatGPT #Evolution #OA
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Reposted by Andy Gardner

ocklenburg.bsky.social
Genetics of Left-Handedness: Major Breakthroughs | @psychologytoday.com www.psychologytoday.com/us/blog/the-...
Genetics of Left-Handedness: Major Breakthroughs
About 10 in 100 people are left-handed, but why? A new article highlights the crucial role of early brain development for left-handedness.
www.psychologytoday.com
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Reposted by Andy Gardner

ocklenburg.bsky.social
New handedness review article with @silparacchini.bsky.social Jutta Peterburs & Annakarina Mundorf in @cp-trendsgenetics.bsky.social www.sciencedirect.com/science/arti...
Genetics of human handedness: microtubules and beyond
Handedness (i.e., the preference to use either the left or the right hand for fine motor tasks) is a widely investigated trait. Handedness heritabilit…
www.sciencedirect.com
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by Andy Gardner

bingdongevo.bsky.social
There could be some physiological constraints for key structure to develop, e.g. the wings. So there could be a minimum duration, but I would suppose that varies across different animal groups. For the second questions, again, I don't know. But these are fun questions! (2/2)

by Andy Gardner

bingdongevo.bsky.social
Thanks! These are really interesting questions. To be clear, my study only looks at the starting time, or onset, of metamorphosis. If you are talking about the duration of metamorphosis, well, I don't know. (1/2)
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by Andy Gardner

bingdongevo.bsky.social
Thank you Shikhara!
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Reposted by Andy Gardner

bingdongevo.bsky.social
My paper is out! "Kin competition drives the evolution of earlier metamorphosis" (#OpenAccess), with @andygardner.bsky.social

doi.org/10.1002/ece3.70806
Kin Competition Drives the Evolution of Earlier Metamorphosis
We develop a mathematical model to investigate how kin selection shapes the optimal timing of metamorphosis. We consider the full range of larval competition intensities and the full range of related...
doi.org
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by Andy Gardner — Reposted by Andy Gardner

andygardner.bsky.social
New paper: "Kin competition drives the evolution of earlier metamorphosis", with @bingdongevo.bsky.social.

doi.org/10.1002/ece3...
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Reposted by Andy Gardner

kztwyman.bsky.social
Hello - how nice to be off twitter!
I'm a PhD student at the University of St Andrews studying evolutionary theory (my research profile: tinyurl.com/kztwyman).
Would love to connect with anyone working in evolution, theory, social behaviour etc.!
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Reposted by Andy Gardner, Jane K. Hill, Colin M. Beale

inesismartins.bsky.social
🚨Fully-Funded UK PhD Opportunity!🚨

I’m hiring a #PhD exploring the complexities of #biodiversity change across space and time 🌐. Join @cmbeale.bsky.social and me at #York and for this exciting opportunity!

Please share and/or message me if interested. More info and how to apply: shorturl.at/Zu7ED
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Reposted by Andy Gardner

salazarafra.bsky.social
Join us for our satellite event on selfish genetic elements!
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Reposted by Andy Gardner, Marcel E. Visser, Dustin J. Marshall

jmappes.bsky.social
Please re-post: I have a postdoc position open! Helsinki is great and working environment is fantastic! #colours #polymorphism #behavior #experiments #lepidoptera jobs.helsinki.fi/job/Helsinki...
Postdoctoral Researcher in Ecology and Evolutionary Biology
Postdoctoral Researcher in Ecology and Evolutionary Biology
jobs.helsinki.fi
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by Andy Gardner

andygardner.bsky.social
Chedhawat (Tim) has given an online seminar about this sex-ratio work, here:

cassyni.com/events/K7vsZ...
A slide from Tim's talk, featuring a schematic showing how haplodiploid inheritance works, with mothers contributing genes to sons and daughters, and fathers contributing genes only to daughters.
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