Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Diversity dynamics of marine planktonic diatoms across the Cenozoic Rabosky, D.L.; Sorhannus, U. (2009). Diversity dynamics of marine planktonic diatoms across the Cenozoic. Nature (Lond.) 457(7226): 183-186. https://dx.doi.org/10.1038/nature07435 In: Nature: International Weekly Journal of Science. Nature Publishing Group: London. ISSN 0028-0836; e-ISSN 1476-4687, meer

---

Beschikbaar in	Auteurs
VLIZ: Non-open access 142192 [ aanvragen ]

---

Trefwoorden

Algae > Diatoms Aquatic communities > Plankton > Phytoplankton Biodiversity Biological production > Primary production Geological time > Phanerozoic > Geological time > Cenozoic Marine sedimentation Organic matter > Carbon > Organic carbon Marien/Kust

---

Auteurs		Top
Rabosky, D.L. Sorhannus, U.

---

Abstract

Diatoms are the dominant group of phytoplankton in the modern ocean. They account for approximately 40% of oceanic primary productivity and over 50% of organic carbon burial in marine sediments(1). Owing to their role as a biological carbon pump(2) and effects on atmospheric CO(2) levels(3-5), there is great interest in elucidating factors that influenced the rapid rise in diatom diversity during the past 40 million years(6,7). Two biotic controls on diversification have been proposed to explain this diversity increase: ( 1) geochemical coupling between terrestrial grasslands and marine ecosystems through the global silicon cycle; and ( 2) competitive displacement of other phytoplankton lineages. However, these hypotheses have not been tested using sampling-standardized fossil data. Here we show that reconstructions of species diversity in marine phytoplankton reject these proposed controls and suggest a new pattern for oceanic diatom diversity across the Cenozoic. Peak species diversity in marine planktonic diatoms occurred at the Eocene - Oligocene boundary and was followed by a pronounced decline, from which diversity has not recovered. Although the roles of abiotic and biotic drivers of diversification remain unclear, major features of oceanic diatom evolution are decoupled from both grassland expansion and competition among phytoplankton groups.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs