Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification
Abstract Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide ( CO 2 ) and subsequent ocean acidification. However, it largely remains uncertain how the effects of these factors compare to each oth...
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crwiley:10.1111/gcb.12421 2024-06-02T08:12:33+00:00 Community composition has greater impact on the functioning of marine phytoplankton communities than ocean acidification Eggers, Sarah L. Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco‐Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte 2014 http://dx.doi.org/10.1111/gcb.12421 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12421 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12421 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 20, issue 3, page 713-723 ISSN 1354-1013 1365-2486 journal-article 2014 crwiley https://doi.org/10.1111/gcb.12421 2024-05-03T11:54:33Z Abstract Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide ( CO 2 ) 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 CO 2 are equally important to the regulation of phytoplankton biomass. We full‐factorially exposed three compositionally different marine phytoplankton communities to two different CO 2 levels and examined the effects and relative importance (ω 2 ) 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 CO 2 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 CO 2 selected for larger sized diatoms, which led to increased total phytoplankton biomass. This 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 CO 2 potentially has strong implications for nutrient cycling and carbon export in future oceans. Article in Journal/Newspaper Ocean acidification Wiley Online Library Global Change Biology 20 3 713 723 |
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Abstract Ecosystem functioning is simultaneously affected by changes in community composition and environmental change such as increasing atmospheric carbon dioxide ( CO 2 ) 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 CO 2 are equally important to the regulation of phytoplankton biomass. We full‐factorially exposed three compositionally different marine phytoplankton communities to two different CO 2 levels and examined the effects and relative importance (ω 2 ) 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 CO 2 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 CO 2 selected for larger sized diatoms, which led to increased total phytoplankton biomass. This 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 CO 2 potentially has strong implications for nutrient cycling and carbon export in future oceans. |
format |
Article in Journal/Newspaper |
author |
Eggers, Sarah L. Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco‐Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte |
spellingShingle |
Eggers, Sarah L. 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 L. Lewandowska, Aleksandra M. Barcelos e Ramos, Joana Blanco‐Ameijeiras, Sonia Gallo, Francesca Matthiessen, Birte |
author_sort |
Eggers, Sarah L. |
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 |
http://dx.doi.org/10.1111/gcb.12421 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12421 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12421 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Global Change Biology volume 20, issue 3, page 713-723 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.12421 |
container_title |
Global Change Biology |
container_volume |
20 |
container_issue |
3 |
container_start_page |
713 |
op_container_end_page |
723 |
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1800759008517160960 |