Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery
Ocean acidification (OA) is negatively affecting calcification in a wide variety of marine organisms. These effects are acute for many tropical scleractinian corals under short-term experimental conditions, but it is unclear how these effects interact with ecological processes, such as competition f...
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crpeerj:10.7717/peerj.11608 2024-06-02T08:12:34+00:00 Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery Evensen, Nicolas R. Bozec, Yves-Marie Edmunds, Peter J. Mumby, Peter J. ARC and NESP National Science Foundation to the MCR-LTER OA 2021 http://dx.doi.org/10.7717/peerj.11608 https://peerj.com/articles/11608.pdf https://peerj.com/articles/11608.xml https://peerj.com/articles/11608.html en eng PeerJ https://creativecommons.org/licenses/by/4.0/ PeerJ volume 9, page e11608 ISSN 2167-8359 journal-article 2021 crpeerj https://doi.org/10.7717/peerj.11608 2024-05-07T14:14:28Z Ocean acidification (OA) is negatively affecting calcification in a wide variety of marine organisms. These effects are acute for many tropical scleractinian corals under short-term experimental conditions, but it is unclear how these effects interact with ecological processes, such as competition for space, to impact coral communities over multiple years. This study sought to test the use of individual-based models (IBMs) as a tool to scale up the effects of OA recorded in short-term studies to community-scale impacts, combining data from field surveys and mesocosm experiments to parameterize an IBM of coral community recovery on the fore reef of Moorea, French Polynesia. Focusing on the dominant coral genera from the fore reef, Pocillopora , Acropora , Montipora and Porites , model efficacy first was evaluated through the comparison of simulated and empirical dynamics from 2010–2016, when the reef was recovering from sequential acute disturbances (a crown-of-thorns seastar outbreak followed by a cyclone) that reduced coral cover to ~0% by 2010. The model then was used to evaluate how the effects of OA (1,100–1,200 µatm pCO 2 ) on coral growth and competition among corals affected recovery rates (as assessed by changes in % cover y −1 ) of each coral population between 2010–2016. The model indicated that recovery rates for the fore reef community was halved by OA over 7 years, with cover increasing at 11% y −1 under ambient conditions and 4.8% y −1 under OA conditions. However, when OA was implemented to affect coral growth and not competition among corals, coral community recovery increased to 7.2% y −1 , highlighting mechanisms other than growth suppression (i.e., competition), through which OA can impact recovery. Our study reveals the potential for IBMs to assess the impacts of OA on coral communities at temporal and spatial scales beyond the capabilities of experimental studies, but this potential will not be realized unless empirical analyses address a wider variety of response variables representing ... Article in Journal/Newspaper Ocean acidification PeerJ Publishing PeerJ 9 e11608 |
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English |
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Ocean acidification (OA) is negatively affecting calcification in a wide variety of marine organisms. These effects are acute for many tropical scleractinian corals under short-term experimental conditions, but it is unclear how these effects interact with ecological processes, such as competition for space, to impact coral communities over multiple years. This study sought to test the use of individual-based models (IBMs) as a tool to scale up the effects of OA recorded in short-term studies to community-scale impacts, combining data from field surveys and mesocosm experiments to parameterize an IBM of coral community recovery on the fore reef of Moorea, French Polynesia. Focusing on the dominant coral genera from the fore reef, Pocillopora , Acropora , Montipora and Porites , model efficacy first was evaluated through the comparison of simulated and empirical dynamics from 2010–2016, when the reef was recovering from sequential acute disturbances (a crown-of-thorns seastar outbreak followed by a cyclone) that reduced coral cover to ~0% by 2010. The model then was used to evaluate how the effects of OA (1,100–1,200 µatm pCO 2 ) on coral growth and competition among corals affected recovery rates (as assessed by changes in % cover y −1 ) of each coral population between 2010–2016. The model indicated that recovery rates for the fore reef community was halved by OA over 7 years, with cover increasing at 11% y −1 under ambient conditions and 4.8% y −1 under OA conditions. However, when OA was implemented to affect coral growth and not competition among corals, coral community recovery increased to 7.2% y −1 , highlighting mechanisms other than growth suppression (i.e., competition), through which OA can impact recovery. Our study reveals the potential for IBMs to assess the impacts of OA on coral communities at temporal and spatial scales beyond the capabilities of experimental studies, but this potential will not be realized unless empirical analyses address a wider variety of response variables representing ... |
author2 |
ARC and NESP National Science Foundation to the MCR-LTER OA |
format |
Article in Journal/Newspaper |
author |
Evensen, Nicolas R. Bozec, Yves-Marie Edmunds, Peter J. Mumby, Peter J. |
spellingShingle |
Evensen, Nicolas R. Bozec, Yves-Marie Edmunds, Peter J. Mumby, Peter J. Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
author_facet |
Evensen, Nicolas R. Bozec, Yves-Marie Edmunds, Peter J. Mumby, Peter J. |
author_sort |
Evensen, Nicolas R. |
title |
Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
title_short |
Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
title_full |
Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
title_fullStr |
Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
title_full_unstemmed |
Scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
title_sort |
scaling the effects of ocean acidification on coral growth and coral–coral competition on coral community recovery |
publisher |
PeerJ |
publishDate |
2021 |
url |
http://dx.doi.org/10.7717/peerj.11608 https://peerj.com/articles/11608.pdf https://peerj.com/articles/11608.xml https://peerj.com/articles/11608.html |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PeerJ volume 9, page e11608 ISSN 2167-8359 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.11608 |
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PeerJ |
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9 |
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e11608 |
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1800759032438325248 |