Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers

Abstract Increasing oceanic uptake of CO2 is predicted to drive ecological change as both a resource (i.e. CO2 enrichment on primary producers) and stressor (i.e. lower pH on consumers). We use the natural ecological complexity of a CO2 vent (i.e. a seagrass system) to assess the potential validity...

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Autores principales:	S. Vizzini, B. Martínez-Crego, C. Andolina, A. Massa-Gallucci, S. D. Connell, M. C. Gambi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/324c9d89249d470c8a17243f2749609f
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spelling	oai:doaj.org-article:324c9d89249d470c8a17243f2749609f2021-12-02T12:32:17ZOcean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers10.1038/s41598-017-03802-w2045-2322https://doaj.org/article/324c9d89249d470c8a17243f2749609f2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03802-whttps://doaj.org/toc/2045-2322Abstract Increasing oceanic uptake of CO2 is predicted to drive ecological change as both a resource (i.e. CO2 enrichment on primary producers) and stressor (i.e. lower pH on consumers). We use the natural ecological complexity of a CO2 vent (i.e. a seagrass system) to assess the potential validity of conceptual models developed from laboratory and mesocosm research. Our observations suggest that the stressor-effect of CO2 enrichment combined with its resource-effect drives simplified food web structure of lower trophic diversity and shorter length. The transfer of CO2 enrichment from plants to herbivores through consumption (apparent resource-effect) was not compensated by predation, because carnivores failed to contain herbivore outbreaks. Instead, these higher-order consumers collapsed (apparent stressor-effect on carnivores) suggesting limited trophic propagation to predator populations. The dominance of primary producers and their lower-order consumers along with the loss of carnivores reflects the duality of intensifying ocean acidification acting both as resource-effect (i.e. bottom-up control) and stressor-effect (i.e. top-down control) to simplify community and trophic structure and function. This shifting balance between the propagation of resource enrichment and its consumption across trophic levels provides new insights into how the trophic dynamics might stabilize against or propagate future environmental change.S. VizziniB. Martínez-CregoC. AndolinaA. Massa-GallucciS. D. ConnellM. C. GambiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. Vizzini B. Martínez-Crego C. Andolina A. Massa-Gallucci S. D. Connell M. C. Gambi Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
description	Abstract Increasing oceanic uptake of CO2 is predicted to drive ecological change as both a resource (i.e. CO2 enrichment on primary producers) and stressor (i.e. lower pH on consumers). We use the natural ecological complexity of a CO2 vent (i.e. a seagrass system) to assess the potential validity of conceptual models developed from laboratory and mesocosm research. Our observations suggest that the stressor-effect of CO2 enrichment combined with its resource-effect drives simplified food web structure of lower trophic diversity and shorter length. The transfer of CO2 enrichment from plants to herbivores through consumption (apparent resource-effect) was not compensated by predation, because carnivores failed to contain herbivore outbreaks. Instead, these higher-order consumers collapsed (apparent stressor-effect on carnivores) suggesting limited trophic propagation to predator populations. The dominance of primary producers and their lower-order consumers along with the loss of carnivores reflects the duality of intensifying ocean acidification acting both as resource-effect (i.e. bottom-up control) and stressor-effect (i.e. top-down control) to simplify community and trophic structure and function. This shifting balance between the propagation of resource enrichment and its consumption across trophic levels provides new insights into how the trophic dynamics might stabilize against or propagate future environmental change.
format	article
author	S. Vizzini B. Martínez-Crego C. Andolina A. Massa-Gallucci S. D. Connell M. C. Gambi
author_facet	S. Vizzini B. Martínez-Crego C. Andolina A. Massa-Gallucci S. D. Connell M. C. Gambi
author_sort	S. Vizzini
title	Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
title_short	Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
title_full	Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
title_fullStr	Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
title_full_unstemmed	Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
title_sort	ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/324c9d89249d470c8a17243f2749609f
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Ocean acidification as a driver of community simplification via the collapse of higher-order and rise of lower-order consumers

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