Large-scale conservation planning in a multinational marine environment: Cost matters

Mazor, Tessa, Giakoumi, Sylvaome, Kark, Saslit and Possingham, Hugh P. (2014) Large-scale conservation planning in a multinational marine environment: Cost matters. Ecological Applications, 24 5: 1115-1130. doi:10.1890/13-1249.1

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Author Mazor, Tessa
Giakoumi, Sylvaome
Kark, Saslit
Possingham, Hugh P.
Title Large-scale conservation planning in a multinational marine environment: Cost matters
Journal name Ecological Applications   Check publisher's open access policy
ISSN 1051-0761
1939-5582
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1890/13-1249.1
Open Access Status File (Publisher version)
Volume 24
Issue 5
Start page 1115
End page 1130
Total pages 16
Place of publication Washington, DC United States
Publisher Ecological Society of America
Collection year 2015
Language eng
Abstract Explicitly including cost in marine conservation planning is essential for achieving feasible and efficient conservation outcomes. Yet, spatial priorities for marine conservation are still often based solely on biodiversity hotspots, species richness, and/or cumulative threat maps. This study aims to provide an approach for including cost when planning large-scale Marine Protected Area (MPA) networks that span multiple countries. Here, we explore the incorporation of cost in the complex setting of the Mediterranean Sea. In order to include cost in conservation prioritization, we developed surrogates that account for revenue from multiple marine sectors: commercial fishing, noncommercial fishing, and aquaculture. Such revenue can translate into an opportunity cost for the implementation of an MPA network. Using the software Marxan, we set conservation targets to protect 10% of the distribution of 77 threatened marine species in the Mediterranean Sea. We compared nine scenarios of opportunity cost by calculating the area and cost required to meet our targets. We further compared our spatial priorities with those that are considered consensus areas by several proposed prioritization schemes in the Mediterranean Sea, none of which explicitly considers cost. We found that for less than 10% of the Sea's area, our conservation targets can be achieved while incurring opportunity costs of less than 1%. In marine systems, we reveal that area is a poor cost surrogate and that the most effective surrogates are those that account for multiple sectors or stakeholders. Furthermore, our results indicate that including cost can greatly influence the selection of spatial priorities for marine conservation of threatened species. Although there are known limitations in multinational large-scale planning, attempting to devise more systematic and rigorous planning methods is especially critical given that collaborative conservation action is on the rise and global financial crisis restricts conservation investments.
Keyword Large scale conservation planning
Marine conservation
Marine protected area (MPA) network
Marxan
Mediterranean Sea
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Biological Sciences Publications
 
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