Lucas Buffan
banner
lucasbuffan.bsky.social
Lucas Buffan
@lucasbuffan.bsky.social
PhD Student
Institut des Sciences de l'Évolution de Montpellier (ISEM)

Macroevolution | Macroecology | Computational palaeobiology

Currently working on South American mammals, but interested in life in general 🦴🌳🦖🏔💻

Triathlete, musician, fêtard
We also provided some neat evidence supporting historical hypotheses regarding how tropical biodiversity changes at macroevolutionary scales. To know more about it, as well as about all what I couldn't detail in this thread, go have a look at the paper :)
May 5, 2025 at 7:53 PM
...in a mass extinction scenario.
Palaeotemperature, diversity-dependent effects and the Andean uplift seem to have played a central role in explaining the long-term faunal change that we evidenced among Palaeogene South American mammals !🌡️🗻
May 5, 2025 at 7:53 PM
Our reconstructions of the dynamics of lineage origination and extinction through time did not evidence any mass extinction among South American mammals at the EOT !
This said, we found support for a landmass-scale faunal remodelling that occurred way more gradually than what we would have expected
May 5, 2025 at 7:53 PM
In #SouthAmerica, things were not that clear.
We therefore benefited from recent improvement in the continent's fossil record (particularly under low latitudes) to address whether mammals from this formerely island-continent did experience a mass extinction, as suggested for their european mates 😱
May 5, 2025 at 7:53 PM
The Eocene-Oligocene Transition (EOT) marked a brutal cooling in global climate, that switched from a greenhouse 🥵 to an icehouse 🥶 phase. It has been related to a major faunal turnover among mammal communities, particularly in Europe. Some authors even characterised it as a #MassExtinction ! 🔥🦴
May 5, 2025 at 7:53 PM