Evidence map›Paper›PMID 33139543›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

The rise of angiosperms pushed conifers to decline during global cooling.

Fabien L Condamine, Daniele Silvestro, Eva B Koppelhus, Alexandre Antonelli

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

57 citing papers in PubMed.

  1. Article
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  5. Environmental phylogenetics supports a steady diversification of crown eukaryotes starting from the mid-Proterozoic.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  10. The stepwise rise of angiosperm-dominated terrestrial ecosystems.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  11. Evolutionary implications of a deep-time perspective on insect pollination.Biological reviews of the Cambridge Philosophical Society · 2025
    Review
  12. Review
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  14. Article
  15. Evolution of theProceedings of the National Academy of Sciences of the United States of America · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Fabien L CondamineCNRS, UMR 5554 Institut des Sciences de l'Evolution de Montpellier (Université de Montpellier), 34095 Montpellier, France; fabien.condamine@gmail.com.ORCID 0000-0003-1673-9910
Daniele SilvestroDepartment of Biology, University of Fribourg, 1700 Fribourg, Switzerland.ORCID 0000-0003-0100-0961
Eva B KoppelhusDepartment of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada.
Alexandre AntonelliDepartment of Biological and Environmental Sciences, University of Gothenburg, SE-405 30 Gothenburg, Sweden.ORCID 0000-0003-1842-9297

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Competition among species and entire clades can impact species diversification and extinction, which can shape macroevolutionary patterns. The fossil record shows successive biotic turnovers such that a dominant group is replaced by another. One striking example involves the decline of gymnosperms and the rapid diversification and ecological dominance of angiosperms in the Cretaceous. It is generally believed that angiosperms outcompeted gymnosperms, but the macroevolutionary processes and alternative drivers explaining this pattern remain elusive. Using extant time trees and vetted fossil occurrences for conifers, we tested the hypotheses that clade competition or climate change led to the decline of conifers at the expense of angiosperms. Here, we find that both fossil and molecular data show high congruence in revealing 1) low diversification rates, punctuated by speciation pulses, during warming events throughout the Phanerozoic and 2) that conifer extinction increased significantly in the Mid-Cretaceous (100 to 110 Ma) and remained high ever since. Their extinction rates are best explained by the rise of angiosperms, rejecting alternative models based on either climate change or time alone. Our results support the hypothesis of an active clade replacement, implying that direct competition with angiosperms increased the extinction of conifers by pushing their remaining species diversity and dominance out of the warm tropics. This study illustrates how entire branches on the Tree of Life may actively compete for ecological dominance under changing climates.

Indexed as

BiodiversityBiological EvolutionClimate ChangeCycadopsidaEvolution, MolecularFossilsMagnoliopsidaPhylogenySelection, GeneticTracheophytacompetitiongymnospermsmacroevolutionpaleoenvironment

Identifiers

PMID33139543
PMCPMC7682372

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.