Marine phytoplankton functional types exhibit diverse responses to thermal change

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Ноя. 5, 2021

Abstract Marine phytoplankton generate half of global primary production, making them essential to ecosystem functioning and biogeochemical cycling. Though are phylogenetically diverse, studies rarely designate unique thermal traits different taxa, resulting in coarse representations responses. Here we assessed functional responses temperature using empirically derived growth rates from four principal contributors marine productivity: diatoms, dinoflagellates, cyanobacteria, coccolithophores. Using modeled sea surface temperatures for 1950–1970 2080–2100, explored potential alterations each group’s geographical distribution under a future climate change scenario. Contrary the commonly applied Eppley formulation, our data suggest types may be characterized by coefficients (Q 10 ), maxima dependencies, ranges which would drive dissimilar degree change. These differences, when response simulations temperature, result taxon-specific projections geographic distribution, with low-latitude coccolithophores facing considerable decreases cyanobacteria substantial increases rates. results that singular effect changing alter community structure, owing significant variability between types.

Язык: Английский

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Environmental vulnerability of the global ocean epipelagic plankton community interactome

Science Advances, Год журнала: 2021, Номер 7(35)

Опубликована: Авг. 27, 2021

A global photic-ocean plankton ecological network predicts distinct vulnerabilities to environmental change across marine biomes.

Язык: Английский

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Global drivers of eukaryotic plankton biogeography in the sunlit ocean

Science, Год журнала: 2021, Номер 374(6567), С. 594 - 599

Опубликована: Окт. 28, 2021

Eukaryotic plankton are a core component of marine ecosystems with exceptional taxonomic and ecological diversity, yet how their ecology interacts the environment to drive global distribution patterns is poorly understood. In this work, we use Tara Oceans metabarcoding data, which cover all major ocean basins, combined probabilistic model taxon co-occurrence compare biogeography 70 groups eukaryotic plankton. We uncover two main axes biogeographic variation. First, more-diverse display clearer patterns. Second, large-bodied consumers structured by oceanic mostly through current systems, whereas small-bodied phototrophs latitude follow local environmental conditions. Our study highlights notable differences in biogeographies across investigates determinants at scale.

Язык: Английский

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Mesopelagic microbial carbon production correlates with diversity across different marine particle fractions

The ISME Journal, Год журнала: 2021, Номер 15(6), С. 1695 - 1708

Опубликована: Янв. 15, 2021

Abstract The vertical flux of marine snow particles significantly reduces atmospheric carbon dioxide concentration. In the mesopelagic zone, a large proportion organic carried by sinking dissipates thereby escaping long term sequestration. Particle associated prokaryotes are largely responsible for such loss. However, links between this important ecosystem and ecological processes as community development on different particle fractions (sinking vs. non-sinking) yet virtually unknown. This prevents accurate predictions loss in response to changing ocean dynamics. Using combined measurements prokaryotic heterotrophic production rates species richness North Atlantic, we reveal that microbial drastically with fractions. Our results demonstrate strong negative correlation losses richness. Such trend may be related detaching from fast-sinking constantly enriching non-sinking communities zone. Existing global scale data suggest is widespread feature microbes.

Язык: Английский

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Functional Traits Resolve Mechanisms Governing the Assembly and Distribution of Nitrogen-Cycling Microbial Communities in the Global Ocean

mBio, Год журнала: 2022, Номер 13(2)

Опубликована: Март 14, 2022

Microorganisms drive much of the marine nitrogen (N) cycle, which jointly controls primary production in global ocean. However, our understanding microbial communities driving ocean N cycle remains fragmented. Focusing on "who is doing what, where, and how?", this study draws a clear picture describing biogeography N-cycling by utilizing

Язык: Английский

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