Environmentally driven extinction and opportunistic origination explain fern diversification patterns.

Details

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State: Public
Version: Final published version
Serval ID
serval:BIB_528E64F7E2E2
Type
Article: article from journal or magazin.
Collection
Publications
Title
Environmentally driven extinction and opportunistic origination explain fern diversification patterns.
Journal
Scientific Reports
Author(s)
Lehtonen S., Silvestro D., Karger D.N., Scotese C., Tuomisto H., Kessler M., Peña C., Wahlberg N., Antonelli A.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
7
Number
1
Pages
4831
Language
english
Notes
D.Silvestro co-first
Abstract
Combining palaeontological and neontological data offers a unique opportunity to investigate the relative roles of biotic and abiotic controls of species diversification, and the importance of origination versus extinction in driving evolutionary dynamics. Ferns comprise a major terrestrial plant radiation with an extensive evolutionary history providing a wealth of modern and fossil data for modelling environmental drivers of diversification. Here we develop a novel Bayesian model to simultaneously estimate correlations between diversification dynamics and multiple environmental trajectories. We estimate the impact of different factors on fern diversification over the past 400 million years by analysing a comprehensive dataset of fossil occurrences and complement these findings by analysing a large molecular phylogeny. We show that origination and extinction rates are governed by fundamentally different processes: originations depend on within-group diversity but are largely unaffected by environmental changes, whereas extinctions are strongly affected by external factors such as climate and geology. Our results indicate that the prime driver of fern diversity dynamics is environmentally driven extinction, with origination being an opportunistic response to diminishing ecospace occupancy.

Pubmed
Web of science
Open Access
Yes
Create date
21/07/2017 8:38
Last modification date
20/08/2019 15:07
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