Assessing the causes of diversification slowdowns: temperature-dependent and diversity-dependent models receive equivalent support.

Details

Serval ID
serval:BIB_A2A14FA3D65D
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Assessing the causes of diversification slowdowns: temperature-dependent and diversity-dependent models receive equivalent support.
Journal
Ecology letters
Author(s)
Condamine F.L., Rolland J., Morlon H.
ISSN
1461-0248 (Electronic)
ISSN-L
1461-023X
Publication state
Published
Issued date
11/2019
Peer-reviewed
Oui
Volume
22
Number
11
Pages
1900-1912
Language
english
Notes
Publication types: Letter (research letter)
Publication Status: ppublish
Abstract
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.
Keywords
Biodiversity, Fossils, Genetic Speciation, Phylogeny, Temperature, Birth-death models, climate change, ecological limits, macroevolution, metabolic theory of biodiversity, paleoclimate, speciation, tetrapods
Pubmed
Web of science
Create date
17/09/2019 17:40
Last modification date
29/07/2020 5:26
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