Towards a framework for assessment and management of cumulative human impacts on marine food webs

Giakoumi, Sylvaine, Halpern, Benjamin S., Michel, Loic N., Gobert, Sylvie, Sini, Maria, Boudouresque, Charles-Francois, Gambi, Maria-Christina, Katsanevakis, Stelios, Lejeune, Pierre, Montefalcone, Monica, Pergent, Gerard, Pergent-Martini, Christine, Sanchez-Jerez, Pablo, Velimirov, Branko, Vizzini, Salvatrice, Abadie, Arnaud, Coll, Marta, Guidetti, Paolo, Micheli, Fiorenza and Possingham, Hugh P. (2015) Towards a framework for assessment and management of cumulative human impacts on marine food webs. Conservation Biology, 29 4: 1228-1234. doi:10.1111/cobi.12468

Author Giakoumi, Sylvaine
Halpern, Benjamin S.
Michel, Loic N.
Gobert, Sylvie
Sini, Maria
Boudouresque, Charles-Francois
Gambi, Maria-Christina
Katsanevakis, Stelios
Lejeune, Pierre
Montefalcone, Monica
Pergent, Gerard
Pergent-Martini, Christine
Sanchez-Jerez, Pablo
Velimirov, Branko
Vizzini, Salvatrice
Abadie, Arnaud
Coll, Marta
Guidetti, Paolo
Micheli, Fiorenza
Possingham, Hugh P.
Title Towards a framework for assessment and management of cumulative human impacts on marine food webs
Journal name Conservation Biology   Check publisher's open access policy
ISSN 1523-1739
Publication date 2015-08-01
Year available 2015
Sub-type Article (original research)
DOI 10.1111/cobi.12468
Open Access Status Not yet assessed
Volume 29
Issue 4
Start page 1228
End page 1234
Total pages 7
Place of publication Hoboken NJ, United States
Publisher Wiley-Blackwell Publishing
Language eng
Abstract Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ecosystems and ultimately alter ecosystem functioning. We used a case study of a Mediterranean seagrass (Posidonia oceanica) food web and expert knowledge elicitation in an application of the initial steps of a framework for assessment of cumulative human impacts on food webs. We produced a conceptual seagrass food web model, determined the main trophic relationships, identified the main threats to the food web components, and assessed the components’ vulnerability to those threats. Some threats had high (e.g., coastal infrastructure) or low impacts (e.g., agricultural runoff) on all food web components, whereas others (e.g., introduced carnivores) had very different impacts on each component. Partitioning the ecosystem into its components enabled us to identify threats previously overlooked and to reevaluate the importance of threats commonly perceived as major. By incorporating this understanding of system vulnerability with data on changes in the state of each threat (e.g., decreasing domestic pollution and increasing fishing) into a food web model, managers may be better able to estimate and predict cumulative human impacts on ecosystems and to prioritize conservation actions.
Keyword Conservation actions
Ecosystem-based management
Expert knowledge elicitation
Multiple threats
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Biological Sciences Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 18 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 23 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 10 Mar 2015, 11:13:53 EST by System User on behalf of School of Biological Sciences