Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows
Forecasting assemblage-level responses to climate change remains one of the greatest challenges in global ecology [1 , 2 ]. Data from the marine realm are limited because they largely come from experiments using limited numbers of species [3 ], mesocosms whose interior conditions are unnatural [4 ],...
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ftnerc:oai:nora.nerc.ac.uk:517718 2023-05-15T13:49:34+02:00 Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows Ashton, Gail V. Morley, Simon A. Barnes, David K.A. Clark, Melody S. Peck, Lloyd S. 2017-09 text http://nora.nerc.ac.uk/id/eprint/517718/ https://nora.nerc.ac.uk/id/eprint/517718/1/Ashton.pdf https://doi.org/10.1016/j.cub.2017.07.048 en eng Cell Press https://nora.nerc.ac.uk/id/eprint/517718/1/Ashton.pdf Ashton, Gail V.; Morley, Simon A. orcid:0000-0002-7761-660X Barnes, David K.A. orcid:0000-0002-9076-7867 Clark, Melody S. orcid:0000-0002-3442-3824 Peck, Lloyd S. orcid:0000-0003-3479-6791 . 2017 Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows. Current Biology, 27 (17). 2698-2705. https://doi.org/10.1016/j.cub.2017.07.048 <https://doi.org/10.1016/j.cub.2017.07.048> cc_by_4 CC-BY Publication - Article PeerReviewed 2017 ftnerc https://doi.org/10.1016/j.cub.2017.07.048 2023-02-04T19:45:17Z Forecasting assemblage-level responses to climate change remains one of the greatest challenges in global ecology [1 , 2 ]. Data from the marine realm are limited because they largely come from experiments using limited numbers of species [3 ], mesocosms whose interior conditions are unnatural [4 ], and long-term correlation studies based on historical collections [5 ]. We describe the first ever experiment to warm benthic assemblages to ecologically relevant levels in situ. Heated settlement panels were used to create three test conditions: ambient and 1°C and 2°C above ambient (predicted in the next 50 and 100 years, respectively [6]). We observed massive impacts on a marine assemblage, with near doubling of growth rates of Antarctic seabed life. Growth increases far exceed those expected from biological temperature relationships established more than 100 years ago by Arrhenius. These increases in growth resulted in a single “r-strategist” pioneer species (the bryozoan Fenestrulina rugula) dominating seabed spatial cover and drove a reduction in overall diversity and evenness. In contrast, a 2°C rise produced divergent responses across species growth, resulting in higher variability in the assemblage. These data extend our ability to expand, integrate, and apply our knowledge of the impact of temperature on biological processes to predict organism, species, and ecosystem level ecological responses to regional warming. Article in Journal/Newspaper Antarc* Antarctic Natural Environment Research Council: NERC Open Research Archive Antarctic Current Biology 27 17 2698 2705.e3 |
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Natural Environment Research Council: NERC Open Research Archive |
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English |
description |
Forecasting assemblage-level responses to climate change remains one of the greatest challenges in global ecology [1 , 2 ]. Data from the marine realm are limited because they largely come from experiments using limited numbers of species [3 ], mesocosms whose interior conditions are unnatural [4 ], and long-term correlation studies based on historical collections [5 ]. We describe the first ever experiment to warm benthic assemblages to ecologically relevant levels in situ. Heated settlement panels were used to create three test conditions: ambient and 1°C and 2°C above ambient (predicted in the next 50 and 100 years, respectively [6]). We observed massive impacts on a marine assemblage, with near doubling of growth rates of Antarctic seabed life. Growth increases far exceed those expected from biological temperature relationships established more than 100 years ago by Arrhenius. These increases in growth resulted in a single “r-strategist” pioneer species (the bryozoan Fenestrulina rugula) dominating seabed spatial cover and drove a reduction in overall diversity and evenness. In contrast, a 2°C rise produced divergent responses across species growth, resulting in higher variability in the assemblage. These data extend our ability to expand, integrate, and apply our knowledge of the impact of temperature on biological processes to predict organism, species, and ecosystem level ecological responses to regional warming. |
format |
Article in Journal/Newspaper |
author |
Ashton, Gail V. Morley, Simon A. Barnes, David K.A. Clark, Melody S. Peck, Lloyd S. |
spellingShingle |
Ashton, Gail V. Morley, Simon A. Barnes, David K.A. Clark, Melody S. Peck, Lloyd S. Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
author_facet |
Ashton, Gail V. Morley, Simon A. Barnes, David K.A. Clark, Melody S. Peck, Lloyd S. |
author_sort |
Ashton, Gail V. |
title |
Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
title_short |
Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
title_full |
Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
title_fullStr |
Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
title_full_unstemmed |
Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows |
title_sort |
warming by 1°c drives species and assemblage level responses in antarctica’s marine shallows |
publisher |
Cell Press |
publishDate |
2017 |
url |
http://nora.nerc.ac.uk/id/eprint/517718/ https://nora.nerc.ac.uk/id/eprint/517718/1/Ashton.pdf https://doi.org/10.1016/j.cub.2017.07.048 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://nora.nerc.ac.uk/id/eprint/517718/1/Ashton.pdf Ashton, Gail V.; Morley, Simon A. orcid:0000-0002-7761-660X Barnes, David K.A. orcid:0000-0002-9076-7867 Clark, Melody S. orcid:0000-0002-3442-3824 Peck, Lloyd S. orcid:0000-0003-3479-6791 . 2017 Warming by 1°C drives species and assemblage level responses in Antarctica’s marine shallows. Current Biology, 27 (17). 2698-2705. https://doi.org/10.1016/j.cub.2017.07.048 <https://doi.org/10.1016/j.cub.2017.07.048> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.cub.2017.07.048 |
container_title |
Current Biology |
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27 |
container_issue |
17 |
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2698 |
op_container_end_page |
2705.e3 |
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1766251686807994368 |