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

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can be achieved cost-effectively us<strong>in</strong>g thematic map products to describe the elements <strong>of</strong> the<br />

l<strong>and</strong>scape, such as the type <strong>and</strong> impact <strong>of</strong> l<strong>and</strong> uses adjacent to the site <strong>and</strong> if historical maps or a<br />

time series is available then an underst<strong>and</strong><strong>in</strong>g <strong>of</strong> the historical ecology <strong>of</strong> the site can be<br />

immensely useful. From a design po<strong>in</strong>t <strong>of</strong> view, l<strong>and</strong>scape ecology can provide <strong>in</strong>sight <strong>in</strong>to<br />

important ecological relationships at scales relevant to restoration decision mak<strong>in</strong>g. For<br />

example, if restor<strong>in</strong>g mangroves as fish habitat then an optimal location for restoration may<br />

<strong>in</strong>clude mangroves that are <strong>in</strong> close proximity to seagrasses that comb<strong>in</strong>e to <strong>of</strong>fer complementary<br />

<strong>and</strong> supplementary resources thus capable <strong>of</strong> support<strong>in</strong>g elevated fish diversity <strong>and</strong> abundance <strong>in</strong><br />

the region (Dunn<strong>in</strong>g et al. 1992, Pittman et al. 2007b). Furthermore, restoration site plann<strong>in</strong>g that<br />

<strong>in</strong>creases connectivity between degraded fragmented habitats may result <strong>in</strong> greater benefits <strong>in</strong><br />

terms <strong>of</strong> the persistence <strong>and</strong> resiliency <strong>of</strong> restored habitats. Given the uncerta<strong>in</strong>ty <strong>of</strong> climate<br />

change effects, greater attention on ecological processes <strong>in</strong> site selection will become<br />

<strong>in</strong>creas<strong>in</strong>gly important.<br />

The best methods appear to be those that rely on a scientific underst<strong>and</strong><strong>in</strong>g <strong>of</strong> the<br />

requirements (e.g., elevation, hydrology) <strong>of</strong> species <strong>and</strong> communities, <strong>and</strong> what must be done to<br />

a site to make these conditions correct for the <strong>in</strong>tended purpose.<br />

<strong>1.10</strong>.10.1 Target<strong>in</strong>g Wetl<strong>and</strong>s for Restoration <strong>in</strong> North Carol<strong>in</strong>a, USA<br />

Approximately 50 percent <strong>of</strong> the orig<strong>in</strong>al wetl<strong>and</strong>s <strong>of</strong> <strong>coastal</strong> North Carol<strong>in</strong>a have been<br />

dra<strong>in</strong>ed <strong>and</strong> converted primarily to agriculture <strong>and</strong> other l<strong>and</strong> uses (Hefner <strong>and</strong> Brown, 1985,<br />

Dahl <strong>and</strong> Johnson 1991). Cont<strong>in</strong>ued alteration <strong>of</strong> wetl<strong>and</strong>s typically results <strong>in</strong> compensatory<br />

mitigation that usually <strong>in</strong>volves the restoration <strong>of</strong> former wetl<strong>and</strong>s, creation <strong>of</strong> new wetl<strong>and</strong>s,<br />

60

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