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The Mediterranean Sea under siege: spatial overlap between marine biodiversity, cumulative threats and marine reserves

AutorColl, Marta ; Piroddi, Chiara ; Albouy, Camille; Ben Rais Lasram, Frida; Cheung, William W.L.; Christensen, Villy; Karpouzi, Vasiliki S.
Palabras claveCumulative impacts
Human threats
Marine biodiversity
Marine conservation
Marine protected areas
Mediterranean Sea
Fecha de publicaciónjul-2012
EditorBlackwell Publishing
CitaciónGlobal Ecology and Biogeography 21(4): 465-480 (2012)
ResumenAim  A large body of knowledge exists on individual anthropogenic threats that have an impact on marine biodiversity in the Mediterranean Sea, although we know little about how these threats accumulate and interact to affect marine species and ecosystems. In this context, we aimed to identify the main areas where the interaction between marine biodiversity and threats is more pronounced and to assess their spatial overlap with current marine protected areas in the Mediterranean. Location  Mediterranean Sea. Methods  We first identified areas of high biodiversity of marine mammals, marine turtles, seabirds, fishes and commercial or well-documented invertebrates. We mapped potential areas of high threat where multiple threats are occurring simultaneously. Finally we quantified the areas of conservation concern for biodiversity by looking at the spatial overlap between high biodiversity and high cumulative threats, and we assessed the overlap with protected areas. Results  Our results show that areas with high marine biodiversity in the Mediterranean Sea are mainly located along the central and north shores, with lower values in the south-eastern regions. Areas of potential high cumulative threats are widespread in both the western and eastern basins, with fewer areas located in the south-eastern region. The interaction between areas of high biodiversity and threats for invertebrates, fishes and large animals in general (including large fishes, marine mammals, marine turtles and seabirds) is concentrated in the coastal areas of Spain, Gulf of Lions, north-eastern Ligurian Sea, Adriatic Sea, Aegean Sea, south-eastern Turkey and regions surrounding the Nile Delta and north-west African coasts. Areas of concern are larger for marine mammal and seabird species. Main conclusions  These areas may represent good candidates for further research, management and protection activities, since there is only a maximum 2% overlap between existing marine protected areas (which cover 5% of the Mediterranean Sea) and our predicted areas of conservation concern for biodiversity.
Descripción16 pages, 6 figures, 6 tables.
Versión del editorhttp://dx.doi.org/10.1111/j.1466-8238.2011.00697.x
URI10261/47017
DOI10.1111/j.1466-8238.2011.00697.x
ISSN1466-822X
E-ISSN1466-8238
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