Liam Revell
@phytools_liam
Evolutionary biologist, R developer, & occasional heterodox. Tweets mostly about phylogenetics... but sometimes speech, the academy, politics, & COVID.
That's a real, physical book, people. @lukejharmon #Rstats press.princeton.edu/books/phylogen…
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. 😅
I mistakenly purchased an extra student ticket ("Meia-Entrada") for the Best of Blues & Rock festival in São Paulo, Sunday June 8th. If any Brazilian evolutionary biology student wants it, please email me by 12pm Wednesday! I'll pick randomly from anyone who qualifies. 1/2
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….
Tonight on the blog -- a "semi-threshold" trait evolution model in #phytools: blog.phytools.org/2025/05/a-semi….
#phytools in infectious disease biology: "South Asian origin and global transmission history of Mycobacterium tuberculosis lineage 4" by Jaemsai et al. (doi.org/10.1128/msyste…) #phylodynamics
Another great figure created with the assistance of #Rstats #phytools, this one by @juanolvido89 et al. "Look past the cooperative eye hypothesis: reconsidering the evolution of human eye appearance." Check out the article here: doi.org/10.1111/brv.70….
Love this beautiful figure made with the help of #Rstats #phytools in "Nest location and architecture as primary drivers of variation in UV reflectance in avian eggs" by @MEmendiwelso, @cdanielcadena, & @dOcampo10. Check it out here: doi.org/10.1098/rspb.2….
