Reef state and performance as indicators of cumulative impacts on coral reefs

Coral bleaching, cyclones, outbreaks of crown-of-thorns seastar, and reduced water quality (WQ) threaten the health and resilience of coral reefs. The cumulative impacts from multiple acute and chronic stressors on “reef State” (i.e., total coral cover) and “reef Performance” (i.e., the deviation fr...

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Autores principales:	Carolina Castro-Sanguino, Juan Carlos Ortiz, Angus Thompson, Nicholas H. Wolff, Renata Ferrari, Barbara Robson, Marites M. Magno-Canto, Marji Puotinen, Katharina E. Fabricius, Sven Uthicke
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Multiple stressors Reef health indicators Monitoring Coral reef management Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5292f49fbd8c4b1db9a57cabc6df8f8a
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spelling	oai:doaj.org-article:5292f49fbd8c4b1db9a57cabc6df8f8a2021-12-01T04:43:09ZReef state and performance as indicators of cumulative impacts on coral reefs1470-160X10.1016/j.ecolind.2020.107335https://doaj.org/article/5292f49fbd8c4b1db9a57cabc6df8f8a2021-04-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312772https://doaj.org/toc/1470-160XCoral bleaching, cyclones, outbreaks of crown-of-thorns seastar, and reduced water quality (WQ) threaten the health and resilience of coral reefs. The cumulative impacts from multiple acute and chronic stressors on “reef State” (i.e., total coral cover) and “reef Performance” (i.e., the deviation from expected rate of total coral cover increase) have rarely been assessed simultaneously, despite their management relevance. We evaluated the dynamics of coral cover (total and per morphological groups) in the Central and Southern Great Barrier Reef over 25 years, and identified and compared the main environmental drivers of State and Performance at the reef level (i.e. based on total coral cover) and per coral group. Using a combination of 25 environmental metrics that consider both the frequency and magnitude of impacts and their lagged effects, we find that the stressors that correlate with State differed from those correlating with Performance. Importantly, we demonstrate that WQ metrics better predict Performance than State. Further, inter-annual dynamics in WQ (here available for a subset of the data) improved the explanatory power of WQ metrics on Performance over long-term WQ averages. The lagged effects of cumulative acute stressors, and to a lesser extent poor water quality, correlated negatively with the Performance of some but not all coral groups. Tabular Acropora and branching non-Acropora were the most affected by water quality demonstrating that group-specific approaches aid in the interpretation of monitoring data and can be crucial for the detection of the impact of chronic pressures. We highlight the complexity of coral reef dynamics and the need of evaluating Performance metrics in order to prioritise local management interventions.Carolina Castro-SanguinoJuan Carlos OrtizAngus ThompsonNicholas H. WolffRenata FerrariBarbara RobsonMarites M. Magno-CantoMarji PuotinenKatharina E. FabriciusSven UthickeElsevierarticleMultiple stressorsReef health indicatorsMonitoringCoral reef managementEcologyQH540-549.5ENEcological Indicators, Vol 123, Iss , Pp 107335- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Multiple stressors Reef health indicators Monitoring Coral reef management Ecology QH540-549.5
spellingShingle	Multiple stressors Reef health indicators Monitoring Coral reef management Ecology QH540-549.5 Carolina Castro-Sanguino Juan Carlos Ortiz Angus Thompson Nicholas H. Wolff Renata Ferrari Barbara Robson Marites M. Magno-Canto Marji Puotinen Katharina E. Fabricius Sven Uthicke Reef state and performance as indicators of cumulative impacts on coral reefs
description	Coral bleaching, cyclones, outbreaks of crown-of-thorns seastar, and reduced water quality (WQ) threaten the health and resilience of coral reefs. The cumulative impacts from multiple acute and chronic stressors on “reef State” (i.e., total coral cover) and “reef Performance” (i.e., the deviation from expected rate of total coral cover increase) have rarely been assessed simultaneously, despite their management relevance. We evaluated the dynamics of coral cover (total and per morphological groups) in the Central and Southern Great Barrier Reef over 25 years, and identified and compared the main environmental drivers of State and Performance at the reef level (i.e. based on total coral cover) and per coral group. Using a combination of 25 environmental metrics that consider both the frequency and magnitude of impacts and their lagged effects, we find that the stressors that correlate with State differed from those correlating with Performance. Importantly, we demonstrate that WQ metrics better predict Performance than State. Further, inter-annual dynamics in WQ (here available for a subset of the data) improved the explanatory power of WQ metrics on Performance over long-term WQ averages. The lagged effects of cumulative acute stressors, and to a lesser extent poor water quality, correlated negatively with the Performance of some but not all coral groups. Tabular Acropora and branching non-Acropora were the most affected by water quality demonstrating that group-specific approaches aid in the interpretation of monitoring data and can be crucial for the detection of the impact of chronic pressures. We highlight the complexity of coral reef dynamics and the need of evaluating Performance metrics in order to prioritise local management interventions.
format	article
author	Carolina Castro-Sanguino Juan Carlos Ortiz Angus Thompson Nicholas H. Wolff Renata Ferrari Barbara Robson Marites M. Magno-Canto Marji Puotinen Katharina E. Fabricius Sven Uthicke
author_facet	Carolina Castro-Sanguino Juan Carlos Ortiz Angus Thompson Nicholas H. Wolff Renata Ferrari Barbara Robson Marites M. Magno-Canto Marji Puotinen Katharina E. Fabricius Sven Uthicke
author_sort	Carolina Castro-Sanguino
title	Reef state and performance as indicators of cumulative impacts on coral reefs
title_short	Reef state and performance as indicators of cumulative impacts on coral reefs
title_full	Reef state and performance as indicators of cumulative impacts on coral reefs
title_fullStr	Reef state and performance as indicators of cumulative impacts on coral reefs
title_full_unstemmed	Reef state and performance as indicators of cumulative impacts on coral reefs
title_sort	reef state and performance as indicators of cumulative impacts on coral reefs
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5292f49fbd8c4b1db9a57cabc6df8f8a
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Reef state and performance as indicators of cumulative impacts on coral reefs

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