Article (Scientific journals)
A factor analysis approach to modelling the early diversification of terrestrial vegetation
Capel, E.; Cleal, C.J.; Gerrienne, Philippe et al.
2021In Palaeogeography, Palaeoclimatology, Palaeoecology, 566, p. 110170
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Keywords :
Devonian; Early land plants; Factor analysis; Plant macrofossil; Plant radiation; Terrestrialization; Oceanography; Ecology, Evolution, Behavior and Systematics; Earth-Surface Processes; Paleontology
Abstract :
[en] Data from a new comprehensive macrofossil-based compilation of early plant genera are analyzed via a Q-mode factor analysis. This compilation ranges from the Silurian to the earliest Carboniferous and illustrates the key vegetation changes that took place during the configuration of early terrestrial ecosystems. Results reveal that four factors can be used to explain more than 90% of the variance in the data. These factors are interpreted as the major phases of the early land plant evolution: a first Eotracheophytic flora (Silurian-Lochkovian) dominated by basal eutracheophytes and rhyniophytoids, an early Eophytic Flora (Early Devonian) dominated by zosterophylls, a transitional late Eophytic Flora (Middle Devonian-earliest Carboniferous) dominated by lycopsids and cladoxylopsids, and finally, the earliest phase of the Palaeophytic Flora (Late Devonian-earliest Carboniferous) dominated by the first seed plants. These floras present different but complementary diversity patterns, which help us to understand the overall trajectory of changes in plant diversity. Results further show how the maximum peaks of diversity appear linked to the rise of each new flora but, interestingly, these diversifications are not associated with any exponential declines of the previously dominant one. This new four-phase diversification model reflects the early steps of Earth's greening.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Capel, E.;  Univ. Lille, CNRS, UMR 8198 - Evo-Eco-Paleo, Lille, France
Cleal, C.J.;  Department of Natural Sciences, National Museum Wales, Cardiff, United Kingdom
Gerrienne, Philippe ;  Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab
Servais, T.;  CNRS, Univ. Lille, UMR 8198 - Evo-Eco-Paleo, Lille, France
Cascales-Miñana, B.;  CNRS, Univ. Lille, UMR 8198 - Evo-Eco-Paleo, Lille, France
Language :
English
Title :
A factor analysis approach to modelling the early diversification of terrestrial vegetation
Publication date :
15 March 2021
Journal title :
Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN :
0031-0182
eISSN :
1872-616X
Publisher :
Elsevier B.V.
Volume :
566
Pages :
110170
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ULille - Université de Lille [FR]
Région Hauts-de-France [FR]
MESR - France. Ministère de l'Enseignement supérieur et de la Recherche [FR]
Funding text :
The authors thank the Région Hauts-de-France, the Ministère de l'Enseignement Supérieur et de la Recherche (CPER Climibio), and the Doctoral School for Materials, Radiation and Environmental Sciences of the University of Lille (Ecole Doctorale SMRE) for financial support. This is also a contribution to National Museum Wales research programme NS25: Plant diversity through 450 million years of Earth history.
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since 02 November 2022

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