Advanced

Environmentally driven extinction and opportunistic origination explain fern diversification patterns

Lehtonen, Samuli; Silvestro, Daniele; Karger, Dirk Nikolaus; Scotese, Christopher; Tuomisto, Hanna; Kessler, Michael; Peña, Carlos; Wahlberg, Niklas LU and Antonelli, Alexandre (2017) In Scientific Reports 7(1).
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... (More)

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.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Scientific Reports
volume
7
issue
1
publisher
Nature Publishing Group
external identifiers
  • scopus:85021906086
  • wos:000404841100087
ISSN
2045-2322
DOI
10.1038/s41598-017-05263-7
language
English
LU publication?
yes
id
54972dc2-e067-4f5e-9e96-8c52e9cdc7dc
date added to LUP
2017-07-24 08:19:29
date last changed
2017-09-18 11:39:03
@article{54972dc2-e067-4f5e-9e96-8c52e9cdc7dc,
  abstract     = {<p>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.</p>},
  articleno    = {4831},
  author       = {Lehtonen, Samuli and Silvestro, Daniele and Karger, Dirk Nikolaus and Scotese, Christopher and Tuomisto, Hanna and Kessler, Michael and Peña, Carlos and Wahlberg, Niklas and Antonelli, Alexandre},
  issn         = {2045-2322},
  language     = {eng},
  month        = {12},
  number       = {1},
  publisher    = {Nature Publishing Group},
  series       = {Scientific Reports},
  title        = {Environmentally driven extinction and opportunistic origination explain fern diversification patterns},
  url          = {http://dx.doi.org/10.1038/s41598-017-05263-7},
  volume       = {7},
  year         = {2017},
}