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Biogeographic response of marine plankton to Cenozoic environmental changes.
- Source :
-
Nature [Nature] 2024 May; Vol. 629 (8012), pp. 616-623. Date of Electronic Publication: 2024 Apr 17. - Publication Year :
- 2024
-
Abstract
- In palaeontological studies, groups with consistent ecological and morphological traits across a clade's history (functional groups) <superscript>1</superscript> afford different perspectives on biodiversity dynamics than do species and genera <superscript>2,3</superscript> , which are evolutionarily ephemeral. Here we analyse Triton, a global dataset of Cenozoic macroperforate planktonic foraminiferal occurrences <superscript>4</superscript> , to contextualize changes in latitudinal equitability gradients <superscript>1</superscript> , functional diversity, palaeolatitudinal specialization and community equitability. We identify: global morphological communities becoming less specialized preceding the richness increase after the Cretaceous-Palaeogene extinction; ecological specialization during the Early Eocene Climatic Optimum, suggesting inhibitive equatorial temperatures during the peak of the Cenozoic hothouse; increased specialization due to circulation changes across the Eocene-Oligocene transition, preceding the loss of morphological diversity; changes in morphological specialization and richness about 19 million years ago, coeval with pelagic shark extinctions <superscript>5</superscript> ; delayed onset of changing functional group richness and specialization between hemispheres during the mid-Miocene plankton diversification. The detailed nature of the Triton dataset permits a unique spatiotemporal view of Cenozoic pelagic macroevolution, in which global biogeographic responses of functional communities and richness are decoupled during Cenozoic climate events. The global response of functional groups to similar abiotic selection pressures may depend on the background climatic state (greenhouse or icehouse) to which a group is adapted.<br /> (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)
- Subjects :
- Animals
Biodiversity
Biological Evolution
Datasets as Topic
Extinction, Biological
History, Ancient
Spatio-Temporal Analysis
Aquatic Organisms physiology
Aquatic Organisms classification
Climate Change history
Foraminifera classification
Foraminifera physiology
Phylogeography
Plankton classification
Plankton physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1476-4687
- Volume :
- 629
- Issue :
- 8012
- Database :
- MEDLINE
- Journal :
- Nature
- Publication Type :
- Academic Journal
- Accession number :
- 38632405
- Full Text :
- https://doi.org/10.1038/s41586-024-07337-9