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 s...
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Dryad
2024
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Online Access: | https://dx.doi.org/10.5061/dryad.pk0p2ngwp https://datadryad.org/stash/dataset/doi:10.5061/dryad.pk0p2ngwp |
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ftdatacite:10.5061/dryad.pk0p2ngwp 2024-09-09T19:22:40+00:00 Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling ... Wolf, Klara Hoppe, Clara Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn 2024 https://dx.doi.org/10.5061/dryad.pk0p2ngwp https://datadryad.org/stash/dataset/doi:10.5061/dryad.pk0p2ngwp en eng Dryad Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 experimental heatwave extreme events primary productivity spring bloom Ecophysiology Community ecology FOS Biological sciences dataset Dataset 2024 ftdatacite https://doi.org/10.5061/dryad.pk0p2ngwp 2024-06-17T08:37:00Z 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 such 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 are 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 ... : We exposed natural spring communities from coastal Svalbard (Norway) for 2-3 weeks to stable temperature treatments (2°C, 6°C, 9°C), where 2°C acted as a control treatment, as well as to repeated 5-day heatwaves of differing intensity (6°C and 9°C, Figure 1). By excluding grazers and ensuring nutrient replete and stable light conditions, we focused on the effect of temperature only. To understand the dynamics and mechanisms during changing temperature regimes, we explicitly investigated the different phases of a heatwave towards their impact on the community. At several timepoints, we measured an extensive set of parameters, including growth and productivity assays, stoichiometry, photophysiology, as well as species and intraspecific population composition. ... Dataset Arctic Climate change Phytoplankton Svalbard DataCite Arctic Svalbard Norway |
institution |
Open Polar |
collection |
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op_collection_id |
ftdatacite |
language |
English |
topic |
experimental heatwave extreme events primary productivity spring bloom Ecophysiology Community ecology FOS Biological sciences |
spellingShingle |
experimental heatwave extreme events primary productivity spring bloom Ecophysiology Community ecology FOS Biological sciences Wolf, Klara Hoppe, Clara Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn Heatwave responses of Arctic phytoplankton communities are driven by combined impacts of warming and cooling ... |
topic_facet |
experimental heatwave extreme events primary productivity spring bloom Ecophysiology Community ecology FOS Biological sciences |
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 such 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 are 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 ... : We exposed natural spring communities from coastal Svalbard (Norway) for 2-3 weeks to stable temperature treatments (2°C, 6°C, 9°C), where 2°C acted as a control treatment, as well as to repeated 5-day heatwaves of differing intensity (6°C and 9°C, Figure 1). By excluding grazers and ensuring nutrient replete and stable light conditions, we focused on the effect of temperature only. To understand the dynamics and mechanisms during changing temperature regimes, we explicitly investigated the different phases of a heatwave towards their impact on the community. At several timepoints, we measured an extensive set of parameters, including growth and productivity assays, stoichiometry, photophysiology, as well as species and intraspecific population composition. ... |
format |
Dataset |
author |
Wolf, Klara Hoppe, Clara Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn |
author_facet |
Wolf, Klara Hoppe, Clara Rehder, Linda Schaum, Elisa John, Uwe Rost, Björn |
author_sort |
Wolf, Klara |
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 |
Dryad |
publishDate |
2024 |
url |
https://dx.doi.org/10.5061/dryad.pk0p2ngwp https://datadryad.org/stash/dataset/doi:10.5061/dryad.pk0p2ngwp |
geographic |
Arctic Svalbard Norway |
geographic_facet |
Arctic Svalbard Norway |
genre |
Arctic Climate change Phytoplankton Svalbard |
genre_facet |
Arctic Climate change Phytoplankton Svalbard |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.pk0p2ngwp |
_version_ |
1809762960731537408 |