Ocean currents promote rare species diversity in protists

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41340%2F20%3A84627" target="_blank" >RIV/60460709:41340/20:84627 - isvavai.cz</a>
Result on the web
<a href="https://advances.sciencemag.org/content/6/29/eaaz9037.full" target="_blank" >https://advances.sciencemag.org/content/6/29/eaaz9037.full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/sciadv.aaz9037" target="_blank" >10.1126/sciadv.aaz9037</a>

Result language
angličtina
Original language name
Ocean currents promote rare species diversity in protists
Original language description
Oceans host communities of plankton composed of relatively few abundant species and many rare species. The number of rare protist species in these communities, as estimated in metagenomic studies, decays as a steep power law of their abundance. The ecological factors at the origin of this pattern remain elusive. We propose that chaotic advection by oceanic currents affects biodiversity patterns of rare species. To test this hypothesis, we introduce a spatially explicit coalescence model that reconstructs the species diversity of a sample of water. Our model predicts, in the presence of chaotic advection, a steeper power law decay of the species abundance distribution and a steeper increase of the number of observed species with sample size. A comparison of metagenomic studies of planktonic protist communities in oceans and in lakes quantitatively confirms our prediction. Our results support that oceanic currents positively affect the diversity of rare aquatic microbes.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10700 - Other natural sciences

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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