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Dr John Clarke

@jclarkepaleo.bsky.social

Evolutionary biologist & paleontologist. https://scholar.google.co.uk/citations?user=nm06iU8AAAAJ&hl=en Macroevolution, phylogenetic comparative methods, diversification, phenotypic evolution of 🐠🌿🦋 Postdoc @iDiv in Leipzig

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Hervé Rogissart@herverogissart.bsky.social · 2mo ago

🏔️🐟🧬 Excited to share my first PhD publication! We investigated how phenotypic plasticity, rapid selection, and genetic drift contribute to rapid phenotypic divergence in Arctic charr populations isolated for just over a century. Thanks to all my co-authors, collaborators, and reviewers! 😊

A century of allopatry: plasticity and rapid selection shape phenotypic trait variability under contrasting environments

Abstract. Allopatric isolation under contrasting environments can drive rapid phenotypic divergence, even over contemporary timescales. Rapid changes in mo

royalsocietypublishing.org

Dr John Clarke@jclarkepaleo.bsky.social · last mo.

Our new paper introduces a fast & Bayesian state-dependent OU model in RevBayes that implements joint inference, to test adaptive macroevolutionary hypotheses. Congrats @prilau.bsky.social! Be sure to give her a follow & give her original tweet some love! Many more exciting PCMs in her future!

Priscilla Lau@prilau.bsky.social · last mo.

Our paper (also, my first first-author paper) is now available in MEE early view! In this study, we introduced a state-dependent Ornstein-Uhlenbeck model we implemented in RevBayes to test adaptive hypotheses in macroevolution. (1/3) besjournals.onlinelibrary.wiley.com/doi/10.1111/...

Priscilla Lau@prilau.bsky.social · last mo.

Our paper (also, my first first-author paper) is now available in MEE early view! In this study, we introduced a state-dependent Ornstein-Uhlenbeck model we implemented in RevBayes to test adaptive hypotheses in macroevolution. (1/3) besjournals.onlinelibrary.wiley.com/doi/10.1111/...

An efficient Bayesian phylogenetic approach for joint inference of continuous and discrete trait evolution under a state‐dependent Ornstein–Uhlenbeck model

Macroevolutionary adaptation of a continuous trait to different discrete states across species can be modelled using a phylogenetic state-dependent Ornstein–Uhlenbeck (OU) process. Existing infere...

besjournals.onlinelibrary.wiley.com

Dr Alex Bond@thelabandfield.bsky.social · 2mo ago

After a bit of too-and-fro, here's the dirt. The only way we'll see real changes is clearly the "sunlight approach" so with that.... Read about the misguided policy at Marine Environmental Research - and how the editor doubled down. adriftlab.org/news/equalit...

Equality is not equity: why we have withdrawn our manuscript from Marine Environmental Research

We are withdrawing a manuscript from the journal Marine Environmental Research, and we want to explain why, publicly, because the issue is bigger than one paper.

adriftlab.org

Dr Alex Bond@thelabandfield.bsky.social · 2mo ago

Journal gives us 3 weeks to revise a paper. We ask for a 1-month extension because a coauthor is away. They said no, the most they can give is 2 weeks. Otherwise it's considered withdrawn. What utter nonsense.

Matt Friedman@friedmanlab.bsky.social · 3mo ago

Led by the incomparable Sanaa El-Sayed, a study out today in Science Advances throws open an important new window on marine fish diversity during the critical few million years following the K-Pg mass extinction. Below: artistic vision of the new fauna by Ian Baylatry.

Illustration of many fishes swimming in sunlit blue water.
Alessio Capobianco@acapomorphic.bsky.social · 4mo ago

My new paper with @gdarlim.bsky.social and @hoehna.bsky.social is now out in Proceedings B! We set out to compare two different approaches to time-calibrate a molecular phylogeny: traditional node calibrations, and unresolved FBD... @royalsocietypublishing.org doi.org/10.1098/rspb...

How to date a molecular phylogeny: comparison of effective priors between node calibration and fossilized birth–death

Abstract. Time-calibrating a phylogenetic tree is a fundamental step in phylogenetic inference, as it allows the study of macroevolutionary processes such

doi.org

Jane@fossilyarns.bsky.social · 4mo ago

Quick question: Does anyone know (or have!) any good resources for dinosaur footprint shapes and stride lengths? Possibly more sketch than photo but I’ll take anything! Got an outreach plan cooking 🧑‍🍳

Rodrigo Figueroa@rodrigoichthys.bsky.social · 4mo ago

Really happy to share I will be joining the Dept. of Anatomical Sciences at Stony Brook University this fall as an assistant professor!! My lab will focus on ray-finned fish neurocranial evolution, integrating fossils and living species. DM if you have interest in joining my new research group!

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Daniel Villar@daniel-a-villar.bsky.social · 5mo ago

First paper of purely postdoctoral research published — Green crabs and climate change in North America rather than Titicaca Grebe and fisheries in the Andes. Rather different, but both interesting #biogeography #InvasionEcology #GlobalChangeBiology #fisheries doi.org/10.1007/s107...

Decadal predictions of future habitat favourability of the European green crab (Carcinus maenas) on the Pacific Coast of North America - Hydrobiologia

The European green crab (Carcinus maenas) is a globally important invasive species. Since 1989, it has been spreading north from San Francisco Bay on the Pacific Coast of North America. Climate change is likely to lead to the species spreading further north into Alaskan and Arctic waters. Previous studies predicting its potential future distribution have focused on its range at the end of the century, under only one of multiple climate change scenarios. We used Bayesian Additive Regression Trees (BART) and benthic environmental variable predictors derived from the latest Intergovernmental Panel on Climate Change report to produce decadal predictions under four climate change scenarios; SSP1, SSP2, SSP4, and SSP5. We find that under all but the lowest emission scenarios, the European green crab will find suitable habitat as far north as the Seward Peninsula, and potentially, under the highest emission scenarios, into the Arctic Circle. This could have devastating consequences for the local ecology of the Pacific Coast of North America, for local economies dependent on fisheries, and for local communities, particularly indigenous communities. Increased monitoring in regions where green crab is likely to find favourable habitat could help with early detection, and potentially early functional eradication before populations establish themselves.

doi.org

Dr Orla Bath Enright@orlabe.bsky.social · 5mo ago

I'm excited to see @taphonomist.bsky.social's newest paper out @royalsociety.org. Our analytical investigations reveal an important cautionary tale about decay: what was believed to be the worlds oldest octopus remains (Pohlsepia) - is in fact, a highly decomposed nautiloid! Congrats again, Thomas!

Dr Thomas Clements@taphonomist.bsky.social · 5mo ago

I am so unbelievably proud to present 8 years of hard work: the worlds oldest octopus is not an octopus... Pohlsepia is actually a really rotten Nautiloid (but oldest soft tissue nautiloid ever found!). 🐙❌ royalsocietypublishing.org/rspb/article...

A picture of a small concretion (rock) with a white blob in the middle. this blob was described as the worlds oldest octopus and called Pohlsepia. Our research shows that hidden under the rock are teeth that confirm it is a nautiloid (a relative of modern nautiluses).
Flo Débarre@flodebarre.eurosky.social · 5mo ago

In March, Matt Ridley gave the inaugural "Scientific Freedom Lecture" at NIH, on a lab leak origin of COVID-19. The talk was so full of misrepresentations, omissions, falsehoods and lies that I will need several blog posts to debunk it. Here's Part I: pandemonium.hypotheses.org/995 🧪 #covidorigin

Fact-checking Matt Ridley’s “Scientific Freedom Lecture” at NIH (Part I)

Matt Ridley, global warming skeptic and co-author with Alina Chan of a book promoting a lab origin of SARS-CoV-2, was invited by Jay Bhattacharya, the Director of the National Institutes of Health (NI...

pandemonium.hypotheses.org