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Gustavo A. Ballen

@gaballench.bsky.social

Computational biologist 🖥️. (Palaeo)Ichthyologist 🐟🦴. Lutenist 🎶. FAPESP postdoctoral fellow at UNESP Botucatu. https://gaballench.com

63 Posts724 Follower241 Folgt
Gustavo A. Ballen@gaballench.bsky.social · 2mo ago

And finally it was published! Massive thanks to my coauthors, the editor and reviewers, and the institutions that supported our research. journals.plos.org/plosone/arti...

What did the dove sing to Pope Gregory? Ancestral melody reconstruction in Gregorian chant using Bayesian phylogenetics

An attractive goal in the study of Gregorian chant melodies is reconstructing unobserved melodies as they may have been transmitted along their history, especially as early chant notation does not cap...

journals.plos.org

Gustavo A. Ballen@gaballench.bsky.social · 2y ago

What did the dove sing to Pope Gregory? A thread on phylogenetics and cultural evolution featuring our new preprint with Jan Hajic jr. and Klára Mühlova (www.biorxiv.org/content/10.1...) and previous contributions to the field.

Evolutionary Journal of the Linnean Society@evojlinnsoc.bsky.social · 8mo ago

RRrrrr, a scientist's best friend. A new package "tbea" has made estimating phylogenies even easier than before, crucial for testing hypotheses in evolutionary biology! Combining fossil, genetic & geological data, this study looked at S American Cynodontidea as an example 👇

tbea: tools for pre- and post-processing in Bayesian evolutionary analyses

Abstract. Estimating phylogenies in which branch lengths are expressed in units of absolute time is crucial for testing hypotheses in evolutionary biology.

doi.org

Muthukumaran Panchaksaram, PhD@muthubioinfo.bsky.social · last yr.

Happy to share that my PhD paper published in Systematic Biology. My paper explores the #Asymptotictheory of Bayesian rate model selection and explore how misspecified calibrations can affect this. Also test rate model selection with large #Phylogenomes Link below: academic.oup.com/sysbio/advan...

Bayesian Selection of Relaxed-Clock Models: Distinguishing between Independent and Autocorrelated Rates

Abstract. In Bayesian molecular-clock dating of species divergences, rate models are used to construct the prior on the molecular evolutionary rates for br

academic.oup.com

Gustavo A. Ballen@gaballench.bsky.social · 2y ago

I'm happy to share our latest preprint on fossil fishes from Colombia, which represents the last piece of my PhD thesis that was still to be published. www.biorxiv.org/content/10.1... @agenciafapesp.bsky.social @uspoficial.bsky.social @sbbe.bsky.social #cienciacriolla

Fossil Freshwater Fishes from the Pliocene of northern Colombia and the Palaeogeography of northern South America

Freshwater fishes from northern Colombia are reported from the Sincelejo and Ware formations, of Pliocene age. A total of ten taxa have been identified comprising two orders, five families, and nine g...

biorxiv.org