Simon Martin

@WTF_R_species @mel_rosina I think he means 2019. We did a reasonably good job at quantifying fine scale introgression, and it has held up pretty well, for example for fine mapping patterns by @DickMerrill and co.

@mel_rosina @simonhmartin 2013 you mean? Those were the days!

@Fischuu Yes, only frustrating when trying to write code that works with input variables that should be able to take any value without changing the behaviour of the script.

@simonhmartin 2:4, and 2:3 are vectors from where it samples, 2:2 is, however, an integer so R translates it to 1:2 ( as it would do with any integer). 2:2 is the same as if you would write just 2. I think it is a feature, as it wouldn't make sense to sample from a vector of length 1?!

R users, watch out for this somewhat infuriating behaviour of the sample() function. R documentation says this is a feature, not a bug.

@MajaIlicZg In my case, I was sampling from 2:n, where n can be any integer >=2 (it's a stochastic simulation, so I don't know n beforehand). My script worked fine for n>2, but broke when n=2.

@simonhmartin It is not that weird: all it does is that is samples from 1 to whatever number you pick in x:x. E.g. sample(5:5, 10, replace = T) will sample 10 times between numbers 1 to 5. So why worry? Also, why even use x:x?

We're very excited about this paper led by @Thymelicus on the role of chromosome fissions and fusions in speciation. There's much theoretical and correlative work on this topic, but Alex's paper uses explicit tests for direct and indirect effects on the barrier to gene flow.

I am pleased to present the latest submission from the #ISEE lab: J.Malmberg's MScThesis as preprint -We measured changes in Fem organs in pops of D.chrysipus #butterfly w/ different MK #spiroplasma prevalence w/ @pasi_sihvonen @simonhmartin @OEB_Helsinki researchsquare.com/article/rs-221…

@mel_rosina @DickMerrill I only have one move!

The final chapter of my PhD is out - rdcu.be/cTxB6 with @mel_rosina @simonhmartin @joana_meier @NicolaNadeau @CarolineBacque2 @frankyc1101 et al. The hardest, most exciting project I've been part of. Thanks to everyone that made it possible. Here is a summary 1/7

A new theme issue explores the evolutionary puzzle of 'supergenes' and highlights factors that promote their origin, composition and maintenance. Thanks to editors Emma Berdan, @FlattLab, @GenevieveKozak, @DrK_Lo and Ben Wielstra bit.ly/PTB1856

Delighted to see the Demes preprint (work with Graham Gower, @apragsdale, @RyanGutenkunst, @mathyhartfield, @kate_e_noskova, Travis Struck and Kevin Thornton) is out! What is Demes? A 🧵: biorxiv.org/content/10.110…

@GayatriRaina2 Thanks @GayatriRaina2 for your contribution, which actually kicked off the whole project!

We also find that darker wings are more common in cooler regions, suggesting a role in thermoregulation in addition to predator warning. A big thanks to @simonhmartin for being an amazing PI and giving me this opportunity to work on such cool stuff!

After months of hard work, my first research paper is out! And it's the cover of Biology Letters! @RSocPublishing @IiserMohali @NGPrasadevo Our first effort using citizen science data to study the geography of a butterfly warning pattern is out today: doi.org/10.1098/rsbl.2…

I forgot to tag @GBIF, which made accessing all the citizen science data super easy, including making a permanent doi for the dataset.

We also find that darker wings are more common in cooler regions, suggesting a role in thermoregulation in addition to predator warning. Most excitingly, the dataset keeps growing daily as users upload images. In the future we hope to track seasonal changes and more.

Our first effort using citizen science data to study the geography of a butterfly warning pattern is out today: doi.org/10.1098/rsbl.2… Congrats to @WanzhenLiuMove for great work on this, and numerous others for many hours spent scoring thousands of butterfly phenotypes.

@AmyAGoldberg You probably have enough, but here's one more: Rapid and repeatable sorting of variation in hybrid ant populations (more a genome-wide story than individual loci). biorxiv.org/content/10.110…

favorite examples of post-hybridization selection? looking for a case study. hybridization in the last ~50ish generations, moderate to high rates of gene flow (>10% each pop)

@juliapgjones @LAK_Barnett Ok management to limit anthropogenic threats makes sense. But I assume a need for predator control in a given protected area is indicative that the system is unable to reach a healthy equilibrium on its own? Is my dream of entirely self-sustaining conservation areas unrealistic?

@simonhmartin @LAK_Barnett Management can include a wide range of activities. It maybe predator control, preventing agricultural expansion/draining, reducing hunting pressure.... Leaving unmanaged often doesn't mean no human intervention as often there are direct anthropogenic threats.

Do protected areas effectively conserve species populations? Our paper out today in @Nature tries to answer this really important question. nature.com/articles/s4158…