Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator
The composition of local ecological communities is determined by the members of the regional community that are able to survive the abiotic and biotic conditions of a local ecosystem. Anthropogenic activities since the industrial revolution have increased atmospheric CO2 concentrations, which have i...
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Online Access: | https://semaphore.uqar.ca/id/eprint/2210/ https://semaphore.uqar.ca/id/eprint/2210/1/Ed_Hammill_et_al_aout2017.pdf https://doi.org/10.1111/gcb.13849 |
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ftunivquebecar:oai:semaphore.uqar.ca:2210 2023-11-05T03:44:27+01:00 Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator Hammill, Edd Johnson, Ellery Atwood, Trisha B. Harianto, Januar Hinchliffe, Charles Calosi, Piero Byrne, Maria 2018-01 application/pdf https://semaphore.uqar.ca/id/eprint/2210/ https://semaphore.uqar.ca/id/eprint/2210/1/Ed_Hammill_et_al_aout2017.pdf https://doi.org/10.1111/gcb.13849 fr fre https://semaphore.uqar.ca/id/eprint/2210/1/Ed_Hammill_et_al_aout2017.pdf Hammill, Edd, Johnson, Ellery, Atwood, Trisha B., Harianto, Januar, Hinchliffe, Charles, Calosi, Piero orcid:0000-0003-3378-2603 et Byrne, Maria (2018). Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator. Global Change Biology, 24 (1). e128-e138. Article Évalué par les pairs 2018 ftunivquebecar https://doi.org/10.1111/gcb.13849 2023-10-07T23:10:41Z The composition of local ecological communities is determined by the members of the regional community that are able to survive the abiotic and biotic conditions of a local ecosystem. Anthropogenic activities since the industrial revolution have increased atmospheric CO2 concentrations, which have in turn decreased ocean pH and altered carbonate ion concentrations: so called ocean acidification (OA). Single-species experiments have shown how OA can dramatically affect zooplankton development, physiology and skeletal mineralization status, potentially reducing their defensive function and altering their predatory and antipredatory behaviors. This means that increased OA may indirectly alter the biotic conditions by modifying trophic interactions. We investigated how OA affects the impact of a cubozoan predator on their zooplankton prey, predominantly Copepoda, Pleocyemata, Dendrobranchiata, and Amphipoda. Experimental conditions were set at either current (pCO2 370 μatm) or end-of-the-century OA (pCO2 1,100 μatm) scenarios, crossed in an orthogonal experimental design with the presence/absence of the cubozoan predator Carybdea rastoni. The combined effects of exposure to OA and predation by C. rastoni caused greater shifts in community structure, and greater reductions in the abundance of key taxa than would be predicted from combining the effect of each stressor in isolation. Specifically, we show that in the combined presence of OA and a cubozoan predator, populations of the most abundant member of the zooplankton community (calanoid copepods) were reduced 27% more than it would be predicted based on the effects of these stressors in isolation, suggesting that OA increases the susceptibility of plankton to predation. Our results indicate that the ecological consequences of OA may be greater than predicted from single-species experiments, and highlight the need to understand future marine global change from a community perspective. -- Keywords : community ecology copepods cubozoans gelatinous predator ... Article in Journal/Newspaper Ocean acidification Copepods Université du Québec à Rimouski (UQAR): Sémaphore Global Change Biology 24 1 e128 e138 |
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Open Polar |
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Université du Québec à Rimouski (UQAR): Sémaphore |
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ftunivquebecar |
language |
French |
description |
The composition of local ecological communities is determined by the members of the regional community that are able to survive the abiotic and biotic conditions of a local ecosystem. Anthropogenic activities since the industrial revolution have increased atmospheric CO2 concentrations, which have in turn decreased ocean pH and altered carbonate ion concentrations: so called ocean acidification (OA). Single-species experiments have shown how OA can dramatically affect zooplankton development, physiology and skeletal mineralization status, potentially reducing their defensive function and altering their predatory and antipredatory behaviors. This means that increased OA may indirectly alter the biotic conditions by modifying trophic interactions. We investigated how OA affects the impact of a cubozoan predator on their zooplankton prey, predominantly Copepoda, Pleocyemata, Dendrobranchiata, and Amphipoda. Experimental conditions were set at either current (pCO2 370 μatm) or end-of-the-century OA (pCO2 1,100 μatm) scenarios, crossed in an orthogonal experimental design with the presence/absence of the cubozoan predator Carybdea rastoni. The combined effects of exposure to OA and predation by C. rastoni caused greater shifts in community structure, and greater reductions in the abundance of key taxa than would be predicted from combining the effect of each stressor in isolation. Specifically, we show that in the combined presence of OA and a cubozoan predator, populations of the most abundant member of the zooplankton community (calanoid copepods) were reduced 27% more than it would be predicted based on the effects of these stressors in isolation, suggesting that OA increases the susceptibility of plankton to predation. Our results indicate that the ecological consequences of OA may be greater than predicted from single-species experiments, and highlight the need to understand future marine global change from a community perspective. -- Keywords : community ecology copepods cubozoans gelatinous predator ... |
format |
Article in Journal/Newspaper |
author |
Hammill, Edd Johnson, Ellery Atwood, Trisha B. Harianto, Januar Hinchliffe, Charles Calosi, Piero Byrne, Maria |
spellingShingle |
Hammill, Edd Johnson, Ellery Atwood, Trisha B. Harianto, Januar Hinchliffe, Charles Calosi, Piero Byrne, Maria Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
author_facet |
Hammill, Edd Johnson, Ellery Atwood, Trisha B. Harianto, Januar Hinchliffe, Charles Calosi, Piero Byrne, Maria |
author_sort |
Hammill, Edd |
title |
Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
title_short |
Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
title_full |
Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
title_fullStr |
Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
title_full_unstemmed |
Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
title_sort |
ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator |
publishDate |
2018 |
url |
https://semaphore.uqar.ca/id/eprint/2210/ https://semaphore.uqar.ca/id/eprint/2210/1/Ed_Hammill_et_al_aout2017.pdf https://doi.org/10.1111/gcb.13849 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
https://semaphore.uqar.ca/id/eprint/2210/1/Ed_Hammill_et_al_aout2017.pdf Hammill, Edd, Johnson, Ellery, Atwood, Trisha B., Harianto, Januar, Hinchliffe, Charles, Calosi, Piero orcid:0000-0003-3378-2603 et Byrne, Maria (2018). Ocean acidification alters zooplankton communities and increases top-down pressure of a cubozoan predator. Global Change Biology, 24 (1). e128-e138. |
op_doi |
https://doi.org/10.1111/gcb.13849 |
container_title |
Global Change Biology |
container_volume |
24 |
container_issue |
1 |
container_start_page |
e128 |
op_container_end_page |
e138 |
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1781704331473453056 |