Biogenic habitat shifts under long-term ocean acidification show nonlinear community responses and unbalanced functions of associated invertebrates

Renato Chemello, Marco Milazzo, Federico Quattrocchi, Badalamenti, Chemello, Mirto, Marco Milazzo, Gil, Michele Gristina, Chiara Alessi, Riccardo D'Agostaro

Risultato della ricerca: Article

3 Citazioni (Scopus)

Abstract

Experiments have shown that increasing dissolved CO 2 concentrations (i.e. Ocean Acidification, OA) in marine ecosystems may act as nutrient for primary producers (e.g. fleshy algae) or a stressor for calcifying species (e.g., coralline algae, corals, molluscs). For the first time, rapid habitat dominance shifts and altered competitive replacement from a reef-forming to a non-reef-forming biogenic habitat were documented over one-year exposure to low pH/high CO 2 through a transplant experiment off Vulcano Island CO 2 seeps (NE Sicily, Italy). Ocean acidification decreased vermetid reefs complexity via a reduction in the reef-building species density, boosted canopy macroalgae and led to changes in composition, structure and functional diversity of the associated benthic assemblages. OA effects on invertebrate richness and abundance were nonlinear, being maximal at intermediate complexity levels of vermetid reefs and canopy forming algae. Abundance of higher order consumers (e.g. carnivores, suspension feeders) decreased under elevated CO 2 levels. Herbivores were non-linearly related to OA conditions, with increasing competitive release only of minor intertidal grazers (e.g. amphipods) under elevated CO 2 levels. Our results support the dual role of CO 2 (as a stressor and as a resource) in disrupting the state of rocky shore communities, and raise specific concerns about the future of intertidal reef ecosystem under increasing CO 2 emissions. We contribute to inform predictions of the complex and nonlinear community effects of OA on biogenic habitats, but at the same time encourage the use of multiple natural CO 2 gradients in providing quantitative data on changing community responses to long-term CO 2 exposure.
Lingua originaleEnglish
pagine (da-a)41-48
Numero di pagine8
RivistaScience of the Total Environment
Volume667
Stato di pubblicazionePublished - 2019

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Reefs
community response
Acidification
Carbon Monoxide
reef
invertebrate
Algae
habitat
alga
canopy
Molluscs
Transplants
Aquatic ecosystems
coralline alga
rocky shore
carnivore
marine ecosystem
amphipod
Ecosystems
mollusc

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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Biogenic habitat shifts under long-term ocean acidification show nonlinear community responses and unbalanced functions of associated invertebrates. / Chemello, Renato; Milazzo, Marco; Quattrocchi, Federico; Badalamenti; Chemello; Mirto; Milazzo, Marco; Gil; Gristina, Michele; Alessi, Chiara; D'Agostaro, Riccardo.

In: Science of the Total Environment, Vol. 667, 2019, pag. 41-48.

Risultato della ricerca: Article

Chemello, R, Milazzo, M, Quattrocchi, F, Badalamenti, Chemello, Mirto, Milazzo, M, Gil, Gristina, M, Alessi, C & D'Agostaro, R 2019, 'Biogenic habitat shifts under long-term ocean acidification show nonlinear community responses and unbalanced functions of associated invertebrates', Science of the Total Environment, vol. 667, pagg. 41-48.
Chemello, Renato ; Milazzo, Marco ; Quattrocchi, Federico ; Badalamenti ; Chemello ; Mirto ; Milazzo, Marco ; Gil ; Gristina, Michele ; Alessi, Chiara ; D'Agostaro, Riccardo. / Biogenic habitat shifts under long-term ocean acidification show nonlinear community responses and unbalanced functions of associated invertebrates. In: Science of the Total Environment. 2019 ; Vol. 667. pagg. 41-48.
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abstract = "Experiments have shown that increasing dissolved CO 2 concentrations (i.e. Ocean Acidification, OA) in marine ecosystems may act as nutrient for primary producers (e.g. fleshy algae) or a stressor for calcifying species (e.g., coralline algae, corals, molluscs). For the first time, rapid habitat dominance shifts and altered competitive replacement from a reef-forming to a non-reef-forming biogenic habitat were documented over one-year exposure to low pH/high CO 2 through a transplant experiment off Vulcano Island CO 2 seeps (NE Sicily, Italy). Ocean acidification decreased vermetid reefs complexity via a reduction in the reef-building species density, boosted canopy macroalgae and led to changes in composition, structure and functional diversity of the associated benthic assemblages. OA effects on invertebrate richness and abundance were nonlinear, being maximal at intermediate complexity levels of vermetid reefs and canopy forming algae. Abundance of higher order consumers (e.g. carnivores, suspension feeders) decreased under elevated CO 2 levels. Herbivores were non-linearly related to OA conditions, with increasing competitive release only of minor intertidal grazers (e.g. amphipods) under elevated CO 2 levels. Our results support the dual role of CO 2 (as a stressor and as a resource) in disrupting the state of rocky shore communities, and raise specific concerns about the future of intertidal reef ecosystem under increasing CO 2 emissions. We contribute to inform predictions of the complex and nonlinear community effects of OA on biogenic habitats, but at the same time encourage the use of multiple natural CO 2 gradients in providing quantitative data on changing community responses to long-term CO 2 exposure.",
author = "Renato Chemello and Marco Milazzo and Federico Quattrocchi and Badalamenti and Chemello and Mirto and Marco Milazzo and Gil and Michele Gristina and Chiara Alessi and Riccardo D'Agostaro",
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T1 - Biogenic habitat shifts under long-term ocean acidification show nonlinear community responses and unbalanced functions of associated invertebrates

AU - Chemello, Renato

AU - Milazzo, Marco

AU - Quattrocchi, Federico

AU - Badalamenti, null

AU - Chemello, null

AU - Mirto, null

AU - Milazzo, Marco

AU - Gil, null

AU - Gristina, Michele

AU - Alessi, Chiara

AU - D'Agostaro, Riccardo

PY - 2019

Y1 - 2019

N2 - Experiments have shown that increasing dissolved CO 2 concentrations (i.e. Ocean Acidification, OA) in marine ecosystems may act as nutrient for primary producers (e.g. fleshy algae) or a stressor for calcifying species (e.g., coralline algae, corals, molluscs). For the first time, rapid habitat dominance shifts and altered competitive replacement from a reef-forming to a non-reef-forming biogenic habitat were documented over one-year exposure to low pH/high CO 2 through a transplant experiment off Vulcano Island CO 2 seeps (NE Sicily, Italy). Ocean acidification decreased vermetid reefs complexity via a reduction in the reef-building species density, boosted canopy macroalgae and led to changes in composition, structure and functional diversity of the associated benthic assemblages. OA effects on invertebrate richness and abundance were nonlinear, being maximal at intermediate complexity levels of vermetid reefs and canopy forming algae. Abundance of higher order consumers (e.g. carnivores, suspension feeders) decreased under elevated CO 2 levels. Herbivores were non-linearly related to OA conditions, with increasing competitive release only of minor intertidal grazers (e.g. amphipods) under elevated CO 2 levels. Our results support the dual role of CO 2 (as a stressor and as a resource) in disrupting the state of rocky shore communities, and raise specific concerns about the future of intertidal reef ecosystem under increasing CO 2 emissions. We contribute to inform predictions of the complex and nonlinear community effects of OA on biogenic habitats, but at the same time encourage the use of multiple natural CO 2 gradients in providing quantitative data on changing community responses to long-term CO 2 exposure.

AB - Experiments have shown that increasing dissolved CO 2 concentrations (i.e. Ocean Acidification, OA) in marine ecosystems may act as nutrient for primary producers (e.g. fleshy algae) or a stressor for calcifying species (e.g., coralline algae, corals, molluscs). For the first time, rapid habitat dominance shifts and altered competitive replacement from a reef-forming to a non-reef-forming biogenic habitat were documented over one-year exposure to low pH/high CO 2 through a transplant experiment off Vulcano Island CO 2 seeps (NE Sicily, Italy). Ocean acidification decreased vermetid reefs complexity via a reduction in the reef-building species density, boosted canopy macroalgae and led to changes in composition, structure and functional diversity of the associated benthic assemblages. OA effects on invertebrate richness and abundance were nonlinear, being maximal at intermediate complexity levels of vermetid reefs and canopy forming algae. Abundance of higher order consumers (e.g. carnivores, suspension feeders) decreased under elevated CO 2 levels. Herbivores were non-linearly related to OA conditions, with increasing competitive release only of minor intertidal grazers (e.g. amphipods) under elevated CO 2 levels. Our results support the dual role of CO 2 (as a stressor and as a resource) in disrupting the state of rocky shore communities, and raise specific concerns about the future of intertidal reef ecosystem under increasing CO 2 emissions. We contribute to inform predictions of the complex and nonlinear community effects of OA on biogenic habitats, but at the same time encourage the use of multiple natural CO 2 gradients in providing quantitative data on changing community responses to long-term CO 2 exposure.

UR - http://hdl.handle.net/10447/363403

UR - https://www.sciencedirect.com/science/article/pii/S004896971930899X

M3 - Article

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EP - 48

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -