Evidence map›Paper›PMID 31548392›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Climate cooling and clade competition likely drove the decline of lamniform sharks.

Fabien L Condamine, Jules Romieu, Guillaume Guinot

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

39 citing papers in PubMed.

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  5. Ecological restructuring of North Tethyan marine vertebrate communities triggered by the end-Cretaceous extinction.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  6. The fate of South America's endemic mammalian fauna in response to the most dramatic Cenozoic climate disruption.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  18. The Angiosperm Terrestrial Revolution buffered ants against extinction.Proceedings of the National Academy of Sciences of the United States of America · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Fabien L CondamineInstitut des Sciences de l'Evolution de Montpellier, CNRS, IRD, EPHE, Université de Montpellier, 34095 Montpellier, France fabien.condamine@gmail.com guillaume.guinot@umontpellier.fr.ORCID 0000-0003-1673-9910
Jules RomieuInstitut des Sciences de l'Evolution de Montpellier, CNRS, IRD, EPHE, Université de Montpellier, 34095 Montpellier, France.
Guillaume GuinotInstitut des Sciences de l'Evolution de Montpellier, CNRS, IRD, EPHE, Université de Montpellier, 34095 Montpellier, France fabien.condamine@gmail.com guillaume.guinot@umontpellier.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Understanding heterogeneity in species richness between closely related clades is a key research question in ecology and evolutionary biology. Multiple hypotheses have been proposed to interpret such diversity contrasts across the tree of life, with most studies focusing on speciation rates to explain clades' evolutionary radiations, while often neglecting extinction rates. Here we study a notorious biological model as exemplified by the sister relationships between mackerel sharks (Lamniformes, 15 extant species) and ground sharks (Carcharhiniformes, ∼290 extant species). Using a comprehensive fossil dataset, we found that the diversity dynamics of lamniforms waxed and waned following repeated cycles of radiation phases and declining phases. Radiation phases peaked up to 3 times the current diversity in the early Late Cretaceous. In the last 20 million years, the group declined to its present-day diversity. Along with a higher extinction risk for young species, we further show that this declining pattern is likely attributed to a combination of abiotic and biotic factors, with a cooling-driven extinction (negative correlation between temperature and extinction) and clade competition with some ground sharks. Competition from multiple clades successively drove the demise and replacement of mackerel sharks due to a failure to originate facing the rise of ground sharks, particularly since the Eocene. These effects came from ecologically similar carcharhiniform species inhibiting diversification of medium- and large-sized lamniforms. These results imply that the interplay between abiotic and biotic drivers had a substantial role in extinction and speciation, respectively, which determines the sequential rise and decline of marine apex predators.

Indexed as

ClimateCompetitive BehaviorExtinction, BiologicalFossilsGenetic SpeciationAnimalsBiodiversityCold TemperatureSharksToothextinctionfossilsmacroevolutionpaleoenvironment

Identifiers

PMID31548392
PMCPMC6789557

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.