Titre
Assessing the causes of diversification slowdowns: temperature-dependent and diversity-dependent models receive equivalent support.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Condamine, F.L.
Auteure/Auteur
Rolland, J.
Auteure/Auteur
Morlon, H.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1461-0248
Statut éditorial
Publié
Date de publication
2019-11
Volume
22
Numéro
11
Première page
1900
Dernière page/numéro d’article
1912
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Letter (research letter)
Publication Status: ppublish
Publication Status: ppublish
Résumé
Diversification rates vary over time, yet the factors driving these variations remain unclear. Temporal declines in speciation rates have often been interpreted as the effect of ecological limits, competition, and diversity dependence, emphasising the role of biotic factors. Abiotic factors, such as climate change, are also supposed to have affected diversification rates over geological time scales, yet direct tests of these presumed effects have mainly been limited to few clades well represented in the fossil record. If warmer climatic periods have sustained faster speciation, this could explain slowdowns in speciation during the Cenozoic climate cooling. Here, we apply state-of-the art diversity-dependent and temperature-dependent phylogenetic models of diversification to 218 tetrapod families, along with constant rate and time-dependent models. We confirm the prevalence of diversification slowdowns, and find as much support for temperature-dependent than diversity-dependent models. These results call for a better integration of these two processes in studies of diversification dynamics.
PID Serval
serval:BIB_A2A14FA3D65D
PMID
Date de création
2019-09-17T16:40:41.030Z
Date de création dans IRIS
2025-05-21T03:20:47Z