Liam Revell @phytools_liam
Evolutionary biologist, R developer, & occasional heterodox. Tweets mostly about phylogenetics... but sometimes speech, the academy, politics, & COVID. faculty.umb.edu/liam.revell/ Providence, Rhode Island Joined May 2013-
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If you're local to Concepción, Chile, & you like #phylogenies, consider registering for this workshop we're offering at @USanSebastian sede Concepción. 👇
If you're local to Concepción, Chile, & you like #phylogenies, consider registering for this workshop we're offering at @USanSebastian sede Concepción. 👇
I suddenly realized why @Klaus_Schlp is a fan of this wine! #threetaxonstatement #phylogenygeek
Next week I'll be teaching in a workshop at @USanSebastian sede Concepción with @lukejharmon & hosted by Cristián Hernández Ulloa. I believe that enrollment is still open, so if you're local to Concepción, Chile, please check it out!
I'm not sure how, but I almost completely forgot I did this in #phytools even though it was only, like, two weeks ago: "A Pagel '94 type correlation model with one binary trait and one continuous character" using the discretized diffusion approximation (blog.phytools.org/2025/07/a-page…).
A Pagel '94 type correlational model for one binary & a second continuous trait in #phytools: blog.phytools.org/2025/07/a-page….
Plotting the x-axis backwards in #phytools phenogram: blog.phytools.org/2025/07/how-to…. (It's easy.)
A Pagel '94 type correlation test with one binary trait and a second continuous character via the discretized diffusion approximation using #phytools: blog.phytools.org/2025/07/a-page….
A discrete character dependent Brownian motion with a trend model in #phytools (& it works pretty good): blog.phytools.org/2025/07/a-disc….
Much more about a discrete trait dependent multi-trend trended Brownian motion model in #phytools: blog.phytools.org/2025/07/more-a….
A multi-σ2, multi-μ, discrete-state-dependent trended Brownian model using the discretized diffusion approximation in #phytools: blog.phytools.org/2025/07/a-mult….
I'm organizing an #Evol2025 meet-up run tomorrow (Sunday) at 6:15am. All ability levels & we'll do an out-and-back -- so no chance of getting lost. Meeting outside the Classic Center. Please email me if you want more details, or just show up!
New in #phytools! Semi-threshold trait evolution model using fitsemiThresh Analyzes traits based on hidden continuous properties with discretized diffusion approximation 📊
Today on the #phytools blog: Why parameter estimates in fitPagel can hit upper bounds, even if they don't in fitMk for each trait modeled separately.... blog.phytools.org/2025/06/why-pa….
Just boosting this & adding that the ticket is FREE for whoever gets it. 😅
This seems like a good postdoc with @MartBulla & Prague would be cool. More info: researchgate.net/job/1021667_Po…. RT & share.
Amazing figure made with the help of #Rstats #phytools in "Adaptations to marine environments and the evolution of slow-paced life histories in endotherms" by Sol et al. in @NatureComms: doi.org/10.1038/s41467….

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