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1 1.10 Application of estuarine and coastal classifications in marine ...

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ecosystem service values extracted from exist<strong>in</strong>g studies. Each mapp<strong>in</strong>g unit <strong>in</strong> the study areas<br />

was assigned a l<strong>and</strong> cover class <strong>and</strong> an ESV multiplier, allow<strong>in</strong>g values to be summed <strong>and</strong> crosstabulated<br />

by service type <strong>and</strong> l<strong>and</strong> cover type. Total ESV flow <strong>of</strong> a given cover type can be<br />

summed by add<strong>in</strong>g up the <strong>in</strong>dividual, non-substitutable ESV associated with a cover type <strong>and</strong><br />

multiply<strong>in</strong>g by area. Scenarios can be modeled by chang<strong>in</strong>g the <strong>in</strong>puts <strong>and</strong> carry<strong>in</strong>g out a change<br />

detection analysis to <strong>in</strong>vestigate the effect <strong>of</strong> a proposed plann<strong>in</strong>g decision or alternatively by<br />

recreat<strong>in</strong>g historical conditions for comparison with present day <strong>and</strong> future anticipated change.<br />

In 2004, Fisheries <strong>and</strong> Oceans Canada (DFO) developed an approach to identify Ecologically<br />

<strong>and</strong> Biologically Significant Areas (EBSAs) based on five criteria: uniqueness, aggregation,<br />

fitness consequences, resilience <strong>and</strong> naturalness (Jamieson <strong>and</strong> Lev<strong>in</strong>gs 2001). The DFO<br />

approach was adapted for application to the Belgian part <strong>of</strong> the North Sea (BPNS) <strong>and</strong> resulted <strong>in</strong><br />

the development <strong>of</strong> biological valuation maps (BVMs). BVMs serve as a tool to identify areas <strong>of</strong><br />

particular high biological significance <strong>and</strong> facilitate management <strong>of</strong> human activities, mak<strong>in</strong>g<br />

best use <strong>of</strong> available data sets us<strong>in</strong>g criteria for biological valuation: rarity, aggregation/fitness<br />

consequences, naturalness <strong>and</strong> proportional importance (Derous et al. 2007).<br />

<strong>1.10</strong>.11.1.1 Mapp<strong>in</strong>g ecosystem services for systematic plann<strong>in</strong>g, California, USA<br />

For the Central Coast ecoregion <strong>of</strong> California, Chan et al. (2006) developed a systematic<br />

plann<strong>in</strong>g framework <strong>of</strong> site prioritization us<strong>in</strong>g Marxan (Ball <strong>and</strong> Poss<strong>in</strong>gham 2001) that<br />

<strong>in</strong>tegrated biodiversity <strong>and</strong> ecosystem services. Six ecosystem services were chosen based on the<br />

availability <strong>of</strong> spatial data <strong>and</strong> knowledge <strong>of</strong> ecosystem functions <strong>in</strong>clud<strong>in</strong>g carbon storage, crop<br />

poll<strong>in</strong>ation, flood control, forage production, outdoor recreation <strong>and</strong> freshwater provision (Figure<br />

65

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