Coastal Wading Bird/Waterfowl Habitats (cwwh83 polygon coverage)
Tidal Waterfowl and Wading Bird Habitats. Data for waterfowl and wading birds in Coastal Wildlife Concentration Areas (CWCAs) were evaluated to determine rating as follows:
Coastal Marine Geologic Environments: ranked high
if located within a moderate or high value CWCA. Otherwise, ranked moderate. Habitats include seaweed communities and reefs.
National
Wetland Inventory: ranked high if located within a moderate or high value
CWCA. Otherwise, ranked moderate. Habitat types include aquatic beds, emergent
wetlands, reefs, and mudflats.
Eelgrass: ranked high if located within a moderate or high value CWCA. Otherwise, ranked moderate. Habitats include all eelgrass polygons with
> 10% eelgrass cover.
Eider habitat: the area between the upland
boundary and the 30’ depth contour of any seabird nesting island that has at
least 25 nesting pairs of eiders is ranked as high value habitat.
Rookery islands: islands are ranked as high if a
wading bird rookery was documented in 1995.
AREA |
area of the polygon in square meters |
PERIMETER
|
perimeter of the polygon in meters |
CWWH83#
|
internal polygon number |
CWWH83-ID
|
polygon identification number |
RANK |
Rating of waterfowl/wading bird habitat. All habitats within this coverage are rated either high or moderate |
HABITAT |
Aquatic Bed, Eelgrass, Eider Habitat, Emergent Wetland, Mudflats, Mussel Bar, Not CWWH, Reef (mollusk), Seaweed Community, Wading Bird Habitat |
RANKHABITAT |
RANK + HABITAT |
