Sign in

Jan De Laet

@jandelaet.bsky.social
40 followers 69 following 12 posts

Biologist, ICT professional, amateur runner and #tenorhorn player. www.anagallis.be

PostsRepliesMedia
Jan De Laet @jandelaet.bsky.social · 18/04/2026
No such thing as a free lunch: a note on what 'natural' means in the Phylogenetic Minimum Description Length optimality criterion and how PMDL relocates substantive assumptions into the chosen description language onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Description languages as modelling decisions: A comment on Wheeler and Varón (2025)
Wheeler and Varón (2025) proposed phylogenetic minimum description length (PMDL) as a phylogenetic optimality criterion grounded in algorithmic (Kolmogorov) complexity. PMDL applies the minimum descr...
000
Reposted by Jan De Laet
A. Murat Eren (Meren) @merenbey.bsky.social · 16/04/2026
How every layer of science's "self-correcting machinery" failed when Iva Veseli and I simply wanted to reproduce the findings of a high-profile study on gut microbiome and autism: merenlab.org/2026/04/15/u...
merenlab.org
Unfalsifiable by Design: A Year of Trying and Failing to Reproduce a Human Microbiome and Autism Study
The myth of open data, reproducibility, responsibility, and accountability in science, and your role in it
1216380
Reposted by Jan De Laet
Mati Armella @matiarmella.bsky.social · 03/04/2026
🧵 (2/3) To resolve the history of these large-sized #mammals, we integrate a dependency-coded matrix of 54 discrete characters and 42 morphogeometric and 5 continuous characters, across a sample of 37 taxa. ✅ 5 major lineages recovered ✅ Character weight ranking ✅ Ancestral reconstructions
141
Reposted by Jan De Laet
Mati Armella @matiarmella.bsky.social · 03/04/2026
🧵 (1/3) What makes South American Ungulates so unique?🦏🍃 #FossilFriday Check out our new comprehensive combined-evidence #phylogeny of #Toxodontidae!!! #Paleontology #Evolution #Fossils #Argentina #CONICET doi.org/10.1111/cla....
1158
Reposted by Jan De Laet
Richard Sever @richardsever.bsky.social · 28/04/2025
AI perpetuates knowledge artefacts. Mind you, a look at PubMed will tell you that humans are pretty good at perpetuating these too.. theconversation.com/a-weird-phra... ht @cyrilpedia.bsky.social
theconversation.com
A weird phrase is plaguing scientific papers – and we traced it back to a glitch in AI training data
Once errors creep into the AI knowledge base, they can be very hard to get out.
54914
Jan De Laet @jandelaet.bsky.social · 07/04/2025
A new morphological phylogeny of Malacostraca comparing the application of character dependencies and implied weighting - Grams - Cladistics - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
A new morphological phylogeny of Malacostraca comparing the application of character dependencies and implied weighting
Using a new character matrix composed of revised matrices of previous analyses and new morphological findings, the phylogeny of Malacostraca (Pancrustacea) is analysed anew with 207 characters for 35...
021
Jan De Laet @jandelaet.bsky.social · 05/02/2025
In onlinelibrary.wiley.com/doi/full/10.... Pol & Ezcurra present a fully scripted (TNT & R, incl. publication-ready graphics) #parsimony based workflow for estimating rates. It deals with ambiguous optimizations and multiple MPTs and can use different calibration approaches. Nice work! #phylogeny
onlinelibrary.wiley.com
Cladistic estimates of evolutionary rates focused on palaeontological datasets using TNT
We describe a protocol for estimating evolutionary rates from phylogenetic trees based on parsimony character optimization. The rate estimation is conducted through a TNT script and the results are a...
021
Jan De Laet @jandelaet.bsky.social · 28/01/2025
If you see this quote with flowers from your gallery. We can all use some beauty right now (Quercus robur L., pedunculate oak, in Belgium; www.plantsystematics.org/imgs/jdelaet...)
Spring picture of Quercus robur L. (pedunculate oak), with developing leaves, a conspicuous male inflorescence and a small developing female inflorescence.
021
Jan De Laet @jandelaet.bsky.social · 23/01/2025
Wheeler (onlinelibrary.wiley.com/doi/10.1111/...) recently proposed to deal with inapplicable characters in #morphology and #phylogeny by concatenating morphological characters into morphological sequences that are, in a next step, to be analyzed using #phylogenetic tree alignment algorithms.
onlinelibrary.wiley.com
Much ado about nothing: inapplicable data as insertion–deletion events
The treatment of inapplicable characters has proved especially vexing to systematists. Investigators have wrestled with alternative coding scenarios to capture both the presence and absence of a feat....
130
Reposted by Jan De Laet
Jorge R Flores @jrfbryo.bsky.social · 11/01/2025
Our new paper on the #phylogeny of Osmundales is out. We reviewed the phylogeny of the group by taking into account character dependence and found that most of the recognised groups are hardly when dependencies are ignored. Check it out #ferns #fossilfriday onlinelibrary.wiley.com/doi/abs/10.1...
Permineralized rhizome of Osmundacaulis (Osmundales)Alternative phylogenies showing different relationships and ancestral character states upon considering dependencies (right tree)
0198