Detecting patterns of species diversification in the presence of both rate shifts and mass extinctions.

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Version: Final published version
Serval ID
serval:BIB_01FF6A3D8DC9
Type
Article: article from journal or magazin.
Collection
Publications
Title
Detecting patterns of species diversification in the presence of both rate shifts and mass extinctions.
Journal
BMC Evolutionary Biology
Author(s)
Laurent S., Robinson-Rechavi M., Salamin N.
ISSN
1471-2148 (Electronic)
ISSN-L
1471-2148
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
15
Pages
157
Language
english
Abstract
BACKGROUND: Recent methodological advances allow better examination of speciation and extinction processes and patterns. A major open question is the origin of large discrepancies in species number between groups of the same age. Existing frameworks to model this diversity either focus on changes between lineages, neglecting global effects such as mass extinctions, or focus on changes over time which would affect all lineages. Yet it seems probable that both lineages differences and mass extinctions affect the same groups.
RESULTS: Here we used simulations to test the performance of two widely used methods under complex scenarios of diversification. We report good performances, although with a tendency to over-predict events with increasing complexity of the scenario.
CONCLUSION: Overall, we find that lineage shifts are better detected than mass extinctions. This work has significance to assess the methods currently used to estimate changes in diversification using phylogenetic trees. Our results also point toward the need to develop new models of diversification to expand our capabilities to analyse realistic and complex evolutionary scenarios.
Pubmed
Web of science
Open Access
Yes
Create date
19/08/2015 8:56
Last modification date
20/08/2019 13:24
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