Abundance does not predict extinction risk in the fossil record of marine plankton.
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
22 05 2023
22 05 2023
Historique:
received:
19
03
2022
accepted:
25
04
2023
medline:
24
5
2023
pubmed:
23
5
2023
entrez:
22
5
2023
Statut:
epublish
Résumé
A major premise of ecological neutral theory is that population size is inversely related to extinction risk. This idea is central to modern biodiversity conservation efforts, which often rely on abundance metrics to partially determine species extinction risk. However, limited empirical studies have tested whether extinction is indeed more probable for species with low abundances. Here we use the fossil record of Neogene radiolaria to test the relationship between relative abundance and longevity (time from first to last occurrence). Our dataset includes abundance histories for 189 polycystine radiolarian species from the Southern Ocean, and 101 species from the tropical Pacific. Using linear regression analyses, we show that neither maximum nor average relative abundance are significant predictors of longevity in either oceanographic region. This suggests that neutral theory fails to explain the plankton ecological-evolutionary dynamics we observe. Extrinsic factors are likely more important than neutral dynamics in controlling radiolarian extinction.
Identifiants
pubmed: 37217772
doi: 10.1038/s42003-023-04871-6
pii: 10.1038/s42003-023-04871-6
pmc: PMC10203123
doi:
Banques de données
figshare
['10.6084/m9.figshare.22637566']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
554Informations de copyright
© 2023. The Author(s).
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