Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification
Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide (CO2) and subsequent ocean acidification. However, it largely remains uncertain how the effects of these factors compare to each other. Addressi...
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Online Access: | https://oceanrep.geomar.de/id/eprint/22621/ https://oceanrep.geomar.de/id/eprint/22621/1/Eggers.pdf https://doi.org/10.1111/gcb.12421 |
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ftoceanrep:oai:oceanrep.geomar.de:22621 2023-05-15T17:50:35+02:00 Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification Eggers, Sarah Lena Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco-Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte 2014-03-01 text https://oceanrep.geomar.de/id/eprint/22621/ https://oceanrep.geomar.de/id/eprint/22621/1/Eggers.pdf https://doi.org/10.1111/gcb.12421 en eng Wiley https://oceanrep.geomar.de/id/eprint/22621/1/Eggers.pdf Eggers, S. L., Lewandowska, A. M., Barcelos e Ramos, J., Blanco-Ameijeiras, S., Gallo, F. and Matthiessen, B. (2014) Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification. Global Change Biology, 20 (3). pp. 713-723. DOI 10.1111/gcb.12421 <https://doi.org/10.1111/gcb.12421>. doi:10.1111/gcb.12421 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2014 ftoceanrep https://doi.org/10.1111/gcb.12421 2023-04-07T15:11:08Z Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide (CO2) and subsequent ocean acidification. However, it largely remains uncertain how the effects of these factors compare to each other. Addressing this question, we experimentally tested the hypothesis that initial community composition and elevated CO2 are equally important to the regulation of phytoplankton biomass. We full-factorially exposed three compositionally different marine phytoplankton communities to two different CO2 levels and examined the effects and relative importance (ω2) of the two factors and their interaction on phytoplankton biomass at bloom peak. The results showed that initial community composition had a significantly greater impact than elevated CO2 on phytoplankton biomass, which varied largely among communities. We suggest that the different initial ratios between cyanobacteria, diatoms, and dinoflagellates might be the key for the varying competitive and thus functional outcome among communities. Furthermore, the results showed that depending on initial community composition elevated CO2 selected for larger sized diatoms, which led to increased total phytoplankton biomass. Our study highlights the relevance of initial community composition, which strongly drives the functional outcome, when assessing impacts of climate change on ecosystem functioning. In particular, the increase in phytoplankton biomass driven by the gain of larger sized diatoms in response to elevated CO2 potentially has strong implications for nutrient cycling and carbon export in future oceans. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Global Change Biology 20 3 713 723 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide (CO2) and subsequent ocean acidification. However, it largely remains uncertain how the effects of these factors compare to each other. Addressing this question, we experimentally tested the hypothesis that initial community composition and elevated CO2 are equally important to the regulation of phytoplankton biomass. We full-factorially exposed three compositionally different marine phytoplankton communities to two different CO2 levels and examined the effects and relative importance (ω2) of the two factors and their interaction on phytoplankton biomass at bloom peak. The results showed that initial community composition had a significantly greater impact than elevated CO2 on phytoplankton biomass, which varied largely among communities. We suggest that the different initial ratios between cyanobacteria, diatoms, and dinoflagellates might be the key for the varying competitive and thus functional outcome among communities. Furthermore, the results showed that depending on initial community composition elevated CO2 selected for larger sized diatoms, which led to increased total phytoplankton biomass. Our study highlights the relevance of initial community composition, which strongly drives the functional outcome, when assessing impacts of climate change on ecosystem functioning. In particular, the increase in phytoplankton biomass driven by the gain of larger sized diatoms in response to elevated CO2 potentially has strong implications for nutrient cycling and carbon export in future oceans. |
format |
Article in Journal/Newspaper |
author |
Eggers, Sarah Lena Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco-Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte |
spellingShingle |
Eggers, Sarah Lena Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco-Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
author_facet |
Eggers, Sarah Lena Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco-Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte |
author_sort |
Eggers, Sarah Lena |
title |
Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
title_short |
Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
title_full |
Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
title_fullStr |
Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
title_full_unstemmed |
Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
title_sort |
community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification |
publisher |
Wiley |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/22621/ https://oceanrep.geomar.de/id/eprint/22621/1/Eggers.pdf https://doi.org/10.1111/gcb.12421 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/22621/1/Eggers.pdf Eggers, S. L., Lewandowska, A. M., Barcelos e Ramos, J., Blanco-Ameijeiras, S., Gallo, F. and Matthiessen, B. (2014) Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification. Global Change Biology, 20 (3). pp. 713-723. DOI 10.1111/gcb.12421 <https://doi.org/10.1111/gcb.12421>. doi:10.1111/gcb.12421 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/gcb.12421 |
container_title |
Global Change Biology |
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20 |
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3 |
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713 |
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723 |
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1766157416047575040 |