Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs
Some species may have a larger role than others in the transfer of complex effects of multiple human stressors, such as changes in biomass, through marine food webs. We devised a novel approach to identify such species. We constructed annual interaction‐effect networks (IENs) of the simulated change...
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ftunivtasmania:oai:eprints.utas.edu.au:29267 2023-05-15T17:51:33+02:00 Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs Griffith, GP Strutton, PG Semmens, JM Fulton, EA 2018 https://eprints.utas.edu.au/29267/ unknown Blackwell Publishing Inc Griffith, GP, Strutton, PG orcid:0000-0002-2395-9471 , Semmens, JM orcid:0000-0003-1742-6692 and Fulton, EA 2018 , 'Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs' , Conservation Biology , pp. 1-10 , doi:10.1111/cobi.13202 <http://dx.doi.org/10.1111/cobi.13202>. key species marine food-webs interaction effect networks climate change Article PeerReviewed 2018 ftunivtasmania https://doi.org/10.1111/cobi.13202 2021-09-13T22:19:10Z Some species may have a larger role than others in the transfer of complex effects of multiple human stressors, such as changes in biomass, through marine food webs. We devised a novel approach to identify such species. We constructed annual interaction‐effect networks (IENs) of the simulated changes in biomass between species of the southeastern Australian marine system. Each annual IEN was composed of the species linked by either an additive (sum of the individual stressor response), synergistic (lower biomass compared with additive effects), or antagonistic (greater biomass compared with additive effects) response to the interaction effect of ocean warming, ocean acidification, and fisheries. Structurally, over the simulation period, the number of species and links in the synergistic IENs increased and the network structure became more stable. The stability of the antagonistic IENs decreased and became more vulnerable to the loss of species. In contrast, there was no change in the structural attributes of species linked by an additive response. Using indices common in food‐web and network theory, we identified the species in each IEN for which a change in biomass from stressor effects would disproportionately affect the biomass of other species via direct and indirect local, intermediate, and global predator–prey feeding interactions. Knowing the species that transfer the most synergistic or antagonistic responses in a food‐web may inform conservation under increasing multiple‐stressor impacts. Article in Journal/Newspaper Ocean acidification University of Tasmania: UTas ePrints Conservation Biology 33 2 403 412 |
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Open Polar |
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University of Tasmania: UTas ePrints |
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ftunivtasmania |
language |
unknown |
topic |
key species marine food-webs interaction effect networks climate change |
spellingShingle |
key species marine food-webs interaction effect networks climate change Griffith, GP Strutton, PG Semmens, JM Fulton, EA Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
topic_facet |
key species marine food-webs interaction effect networks climate change |
description |
Some species may have a larger role than others in the transfer of complex effects of multiple human stressors, such as changes in biomass, through marine food webs. We devised a novel approach to identify such species. We constructed annual interaction‐effect networks (IENs) of the simulated changes in biomass between species of the southeastern Australian marine system. Each annual IEN was composed of the species linked by either an additive (sum of the individual stressor response), synergistic (lower biomass compared with additive effects), or antagonistic (greater biomass compared with additive effects) response to the interaction effect of ocean warming, ocean acidification, and fisheries. Structurally, over the simulation period, the number of species and links in the synergistic IENs increased and the network structure became more stable. The stability of the antagonistic IENs decreased and became more vulnerable to the loss of species. In contrast, there was no change in the structural attributes of species linked by an additive response. Using indices common in food‐web and network theory, we identified the species in each IEN for which a change in biomass from stressor effects would disproportionately affect the biomass of other species via direct and indirect local, intermediate, and global predator–prey feeding interactions. Knowing the species that transfer the most synergistic or antagonistic responses in a food‐web may inform conservation under increasing multiple‐stressor impacts. |
format |
Article in Journal/Newspaper |
author |
Griffith, GP Strutton, PG Semmens, JM Fulton, EA |
author_facet |
Griffith, GP Strutton, PG Semmens, JM Fulton, EA |
author_sort |
Griffith, GP |
title |
Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
title_short |
Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
title_full |
Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
title_fullStr |
Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
title_full_unstemmed |
Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
title_sort |
identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs |
publisher |
Blackwell Publishing Inc |
publishDate |
2018 |
url |
https://eprints.utas.edu.au/29267/ |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Griffith, GP, Strutton, PG orcid:0000-0002-2395-9471 , Semmens, JM orcid:0000-0003-1742-6692 and Fulton, EA 2018 , 'Identifying important species that amplify or mitigate the interactive effects of human impacts on marine food webs' , Conservation Biology , pp. 1-10 , doi:10.1111/cobi.13202 <http://dx.doi.org/10.1111/cobi.13202>. |
op_doi |
https://doi.org/10.1111/cobi.13202 |
container_title |
Conservation Biology |
container_volume |
33 |
container_issue |
2 |
container_start_page |
403 |
op_container_end_page |
412 |
_version_ |
1766158730764746752 |