/ 🧵 Setting the stage. We have 5 faces. Are they 5 people or 5 iterations of one blueprint? Using 60+ anthropometric ratios (trichion to gnathion), we move past subjective "vibes" into high-dimensional data. This thread explores why the math says these aren't just strangers. We are looking at a skeletal MAC address that defies biography. Let's dive into the statistics of the uncanny. #DataScience #Morphometrics #Bayesian #Stats #SimulationTheory
#Morphometrics
They did morphometrics on the Chicago Rat Hole and concluded that its likely a squirrel. Published in Biology Letters, "Rodent indent not self-evident: a case of mistaken identity of the 'Chicago Rat Hole'".
https://royalsocietypublishing.org/doi/full/10.1098/rsbl.2025.0343?af=R
#science #biology #chicago #ChicagoRatHole #morphometrics
#30DayChartChallenge Día 15: Complicated Relationships! 🐧↔️🐧
Hoy, una matriz de scatter plots con ggpairs para explorar las relaciones entre medidas corporales (Long. Pico, Long. Aleta, Masa Corporal) en los pingüinos de Palmer. ¡Perfecto para el prompt "Complicated"! #RelationshipsWeek #Animals
La matriz lo enseña todo:
* Diagonal: Distribución de cada medida (densidad).
* Abajo: Scatter plots de cada par de medidas (coloreado por Especie).
* Arriba: ¡La correlación $ entre ellas!
Se ven las fuertes relaciones positivas (más grande = aleta más larga) y cómo las especies (Adelie, Chinstrap, Gentoo) forman clusters distintos en este espacio de rasgos. ¡Una forma densa de ver muchas relaciones a la vez!
🛠 #rstats #ggplot2 #GGally | Data: #palmerpenguins | Theme: #theme_week3_animals
📂 Código/Viz: https://t.ly/GATJi
#Day15 #Complicated #dataviz #DataVisualization #Penguins #Ecology #Morphometrics #Multivariate #ggplot2 #RStats
Come for the exciting story of fishes diversifying in fresh vs saltwater (aka the "Freshwater or Na+ Continuum"), stay for the complete blueprint on how to study teleostean fish skulls with 3D geometric morphometrics by Buser et al.
https://www.journals.uchicago.edu/doi/10.1086/731784
#diversifying #freshWater #saltwater #teleosteanFish #morphometrics
IOB
“This study examines the evolution of #zeiform jaw #morphologies using #3D landmark-based multivariate #morphometrics as well as phylomorphospace analysis."
by Peters et al
Fresh in IOB issue!
Sample Size and Geometric #Morphometrics Methodology Impact the Evaluation of #Morphological Variation
by @arummel25 , Sheehy, Schachner, & Hedrick
Diversity in the internal functional feeding elements of sympatric morphs of Arctic charr (Salvelinus alpinus)
Guðbjörg Ósk Jónsdóttir et al
Minor revision at #PlosOne
#biorxiv #evolution #fish #ArcticCharr #speciation #morphology #morphometrics #dentary #jaws
Idiosyncratic #paleontology paper of the week for #fossilfriday: modularity a hot topic for a decade now, and here's one way of operationalize it to look at simplification and stasis in turtle shells.
Reduction, reorganization and stasis in the evolution of turtle shell elements
Gerardo A Cordero, Evangelos Vlachos
Biological Journal of the Linnean Society
https://doi.org/10.1093/biolinnean/blab122
Extremely happy for Gabriele Sansalone. Gabriele has been a postdoc in my lab for almost two years. He has just left the lab to become a #newPI at the University of Modena and Reggio Emilia. I whish him the best of luck in this new endeavour and to establish a successful lab! https://www.fruciano.org/events/postdoc-gabriele-sansalone-leaves-the-lab-to-become-a-pi/ #evolution #morphometrics #anatomy #geometricmorphometrics
I recently accepted a position as Associate Professor at the University of Catania (my alma mater). This is essentially the next rank compared to my current tenured research-only position. I will move my lab in the fall. https://www.fruciano.org/events/the-lab-will-move-to-the-university-of-catania-in-the-fall/ #evolution #morphometrics #zoology #biology #academicchatter #geometricmorphometrics
My daughter pointed this horrifying fact out to me: beak length is typically measured from anterior end of the nostril to the tip of the beak. Which means the kiwi has the *shortest* beak since it has nostrils near the very tip of the beak.
https://www.sciencelearn.org.nz/resources/2784-conserving-our-native-kiwi
Last day of the #GeometricMorphometrics course and what a ride it's been! Our brilliant instructor @CarmeloFruciano
has taken us on a mind-bending journey.
We can't wait to see our attendees applying these new skills and knowledge to their research! 📈🌟
#Rstats #morphometrics
🚀 The 6th edition of the #GeometricMorphometrics course with @carmelofruciano has just kicked off.
Our attendees will discover the latest techniques for analysing and visualising complex morphological data.
🎉New @AdriftLab paper 🎉 in ICES Journal of Marine Science!! Download it for free (#OpenAccess) HERE ➡️ https://academic.oup.com/icesjms/advance-article/doi/10.1093/icesjms/fsad048/7083385
So, what did we find? Well, in young #seabirds, body mass influences the likelihood of survival in the critical period between nest departure & recruitment to the breeding population. For this study, we measured #shearwater chicks to determine how body condition changed over 13 years (an incredible long-term dataset!).
During 2010–2022, we found chick body mass & 3 measures of size (eg. wing length) declined by up to 0.23 mm/yr with body mass declining by 16 g/yr 📏📉😢
In the 1st photo, a healthy chick is shown on the LEFT while an undersized chick which we more commonly observed is shown on the RIGHT.
Overall, the number of chicks fledging (leaving the nest) at <400 g has increased sharply in recent years (see photo 2), meaning significant numbers of birds are unlikely to survive after departing the island
This paper highlights the value of #LongTermMonitoring & critical role #philanthropy has played: literally NONE of this world-class science would have been possible without support from generous donors, especially Detached Hobart - we are forever grateful! 😍🐦💙 Huge thanks to Justin Gilligan for providing the stunning (yet sad) 📸, they made all the difference to this paper! Finally, a massive thanks to @nhmscience and Esperance Tjaltjraak for supporting our team 🙏
#AdriftLab #Morphometrics #LordHoweIsland #OceanHealth #BioIndicator #TippingPoint #BiodiversityCrisis #Sentinel @TheLabAndField
#NewPaper #Paleontology #Dinosaurs #Morphometrics
Hedrick, B. P. (2023). Dots on a screen: The past, present, and future of morphometrics in the study of nonavian dinosaurs. The Anatomical Record, 1– 22. https://doi.org/10.1002/ar.25183
The 6th edition of the Geometric Morphometrics course with @carmelofruciano will be in April (17-21)!
Do not miss the opportunity to learn from one of the top scientists in the field.
For details: https://physalia-courses.org/courses-workshops/course22/
#Rstats #morphometrics #evolution #GeometricMorphometrics #DataScience
PhD/masters students alert! 2023 Analytical Paleobiology Summer School in Erlangen Germany is on from 21 Aug - 8 Sep2023. Participation is free and accommodation costs will be covered by the Paleosynthesis Project. Application deadline is Feb 26. More info here https://www.paleosynthesis.nat.fau.de/index.php/science-schools/
Instructors include @rachelwarnock @eesaupe
Boost pls!
#paleobiology #evolution #phd #fossil #paleoecology #ecology #networkAnalysis #GeomtricMorphometrics #Morphometrics #paleontology #FAU #Germany
A few spots are still available for the LIVE ONLINE course on #GeometricMorphometrics with @carmelofruciano (April 17-21).
For more details: https://physalia-courses.org/courses-workshops/course22/
My very first Mastodon post! I'm looking forward to linking up with friends who like to post about #evolution #ecology #morphometrics #nature
#NewPaper #Mammalogy #Morphometrics
Cooper David M., Yamaguchi Nobuyuki, Macdonald David W., Nanova Olga G., Yudin Viktor G., Dugmore Andrew J. and Kitchener Andrew C. 2022Phenotypic plasticity determines differences between the skulls of tigers from mainland AsiaR. Soc. open sci.9220697220697
https://royalsocietypublishing.org/doi/10.1098/rsos.220697
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