Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling
Marine heatwaves are increasing in frequency and intensity as climate change progresses, especially in the highly productive Arctic regions. Although their effects on primary producers will largely determine the impacts on ecosystem services, mechanistic understanding on phytoplankton responses to t...
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American Association for the Advancement of Science (AAAS)
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Online Access: | http://dx.doi.org/10.1126/sciadv.adl5904 https://www.science.org/doi/pdf/10.1126/sciadv.adl5904 |
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craaas:10.1126/sciadv.adl5904 2024-09-30T14:29:52+00:00 Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling Wolf, Klara K. E. Hoppe, Clara J. M. Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn 2024 http://dx.doi.org/10.1126/sciadv.adl5904 https://www.science.org/doi/pdf/10.1126/sciadv.adl5904 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 10, issue 20 ISSN 2375-2548 journal-article 2024 craaas https://doi.org/10.1126/sciadv.adl5904 2024-09-19T04:01:10Z Marine heatwaves are increasing in frequency and intensity as climate change progresses, especially in the highly productive Arctic regions. Although their effects on primary producers will largely determine the impacts on ecosystem services, mechanistic understanding on phytoplankton responses to these extreme events is still very limited. We experimentally exposed Arctic phytoplankton assemblages to stable warming, as well as to repeated heatwaves, and measured temporally resolved productivity, physiology, and composition. Our results show that even extreme stable warming increases productivity, while the response to heatwaves depends on the specific scenario applied and is not predictable from stable warming responses. This appears to be largely due to the underestimated impact of the cool phase following a heatwave, which can be at least as important as the warm phase for the overall response. We show that physiological and compositional adjustments to both warm and cool phases drive overall phytoplankton productivity and need to be considered mechanistically to predict overall ecosystem impacts. Article in Journal/Newspaper Arctic Climate change Phytoplankton AAAS Resource Center (American Association for the Advancement of Science) Arctic Science Advances 10 20 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Marine heatwaves are increasing in frequency and intensity as climate change progresses, especially in the highly productive Arctic regions. Although their effects on primary producers will largely determine the impacts on ecosystem services, mechanistic understanding on phytoplankton responses to these extreme events is still very limited. We experimentally exposed Arctic phytoplankton assemblages to stable warming, as well as to repeated heatwaves, and measured temporally resolved productivity, physiology, and composition. Our results show that even extreme stable warming increases productivity, while the response to heatwaves depends on the specific scenario applied and is not predictable from stable warming responses. This appears to be largely due to the underestimated impact of the cool phase following a heatwave, which can be at least as important as the warm phase for the overall response. We show that physiological and compositional adjustments to both warm and cool phases drive overall phytoplankton productivity and need to be considered mechanistically to predict overall ecosystem impacts. |
format |
Article in Journal/Newspaper |
author |
Wolf, Klara K. E. Hoppe, Clara J. M. Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn |
spellingShingle |
Wolf, Klara K. E. Hoppe, Clara J. M. Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
author_facet |
Wolf, Klara K. E. Hoppe, Clara J. M. Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn |
author_sort |
Wolf, Klara K. E. |
title |
Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
title_short |
Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
title_full |
Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
title_fullStr |
Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
title_full_unstemmed |
Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling |
title_sort |
heatwave responses of arctic phytoplankton communities are driven by combined impacts of warming and cooling |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1126/sciadv.adl5904 https://www.science.org/doi/pdf/10.1126/sciadv.adl5904 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Phytoplankton |
genre_facet |
Arctic Climate change Phytoplankton |
op_source |
Science Advances volume 10, issue 20 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.adl5904 |
container_title |
Science Advances |
container_volume |
10 |
container_issue |
20 |
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1811635040600195072 |