Cargando…

Global pattern of phytoplankton diversity driven by temperature and environmental variability

Despite their importance to ocean productivity, global patterns of marine phytoplankton diversity remain poorly characterized. Although temperature is considered a key driver of general marine biodiversity, its specific role in phytoplankton diversity has remained unclear. We determined monthly phyt...

Descripción completa

Detalles Bibliográficos
Autores principales: Righetti, Damiano, Vogt, Meike, Gruber, Nicolas, Psomas, Achilleas, Zimmermann, Niklaus E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6520023/
https://www.ncbi.nlm.nih.gov/pubmed/31106265
http://dx.doi.org/10.1126/sciadv.aau6253
_version_ 1783418702618689536
author Righetti, Damiano
Vogt, Meike
Gruber, Nicolas
Psomas, Achilleas
Zimmermann, Niklaus E.
author_facet Righetti, Damiano
Vogt, Meike
Gruber, Nicolas
Psomas, Achilleas
Zimmermann, Niklaus E.
author_sort Righetti, Damiano
collection PubMed
description Despite their importance to ocean productivity, global patterns of marine phytoplankton diversity remain poorly characterized. Although temperature is considered a key driver of general marine biodiversity, its specific role in phytoplankton diversity has remained unclear. We determined monthly phytoplankton species richness by using niche modeling and >540,000 global phytoplankton observations to predict biogeographic patterns of 536 phytoplankton species. Consistent with metabolic theory, phytoplankton richness in the tropics is about three times that in higher latitudes, with temperature being the most important driver. However, below 19°C, richness is lower than expected, with ~8°– 14°C waters (~35° to 60° latitude) showing the greatest divergence from theoretical predictions. Regions of reduced richness are characterized by maximal species turnover and environmental variability, suggesting that the latter reduces species richness directly, or through enhancing competitive exclusion. The nonmonotonic relationship between phytoplankton richness and temperature suggests unanticipated complexity in responses of marine biodiversity to ocean warming.
format Online
Article
Text
id pubmed-6520023
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher American Association for the Advancement of Science
record_format MEDLINE/PubMed
spelling pubmed-65200232019-05-18 Global pattern of phytoplankton diversity driven by temperature and environmental variability Righetti, Damiano Vogt, Meike Gruber, Nicolas Psomas, Achilleas Zimmermann, Niklaus E. Sci Adv Research Articles Despite their importance to ocean productivity, global patterns of marine phytoplankton diversity remain poorly characterized. Although temperature is considered a key driver of general marine biodiversity, its specific role in phytoplankton diversity has remained unclear. We determined monthly phytoplankton species richness by using niche modeling and >540,000 global phytoplankton observations to predict biogeographic patterns of 536 phytoplankton species. Consistent with metabolic theory, phytoplankton richness in the tropics is about three times that in higher latitudes, with temperature being the most important driver. However, below 19°C, richness is lower than expected, with ~8°– 14°C waters (~35° to 60° latitude) showing the greatest divergence from theoretical predictions. Regions of reduced richness are characterized by maximal species turnover and environmental variability, suggesting that the latter reduces species richness directly, or through enhancing competitive exclusion. The nonmonotonic relationship between phytoplankton richness and temperature suggests unanticipated complexity in responses of marine biodiversity to ocean warming. American Association for the Advancement of Science 2019-05-15 /pmc/articles/PMC6520023/ /pubmed/31106265 http://dx.doi.org/10.1126/sciadv.aau6253 Text en Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Righetti, Damiano
Vogt, Meike
Gruber, Nicolas
Psomas, Achilleas
Zimmermann, Niklaus E.
Global pattern of phytoplankton diversity driven by temperature and environmental variability
title Global pattern of phytoplankton diversity driven by temperature and environmental variability
title_full Global pattern of phytoplankton diversity driven by temperature and environmental variability
title_fullStr Global pattern of phytoplankton diversity driven by temperature and environmental variability
title_full_unstemmed Global pattern of phytoplankton diversity driven by temperature and environmental variability
title_short Global pattern of phytoplankton diversity driven by temperature and environmental variability
title_sort global pattern of phytoplankton diversity driven by temperature and environmental variability
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6520023/
https://www.ncbi.nlm.nih.gov/pubmed/31106265
http://dx.doi.org/10.1126/sciadv.aau6253
work_keys_str_mv AT righettidamiano globalpatternofphytoplanktondiversitydrivenbytemperatureandenvironmentalvariability
AT vogtmeike globalpatternofphytoplanktondiversitydrivenbytemperatureandenvironmentalvariability
AT grubernicolas globalpatternofphytoplanktondiversitydrivenbytemperatureandenvironmentalvariability
AT psomasachilleas globalpatternofphytoplanktondiversitydrivenbytemperatureandenvironmentalvariability
AT zimmermannniklause globalpatternofphytoplanktondiversitydrivenbytemperatureandenvironmentalvariability