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Resources
Gulf of Maine Library Collection
Identification of Important Habitats in
the Lower Casco Bay (Maine) Watershed
Table 6. Wetland Types found in
Casco Bay and Their Suitability for Wading Birds Based on National Wetlands
Inventory Attributes
| NWI abbreviation |
Description |
Relative foraging
suitability for wading birds** (0 to 4) |
Adapted from Gibbs et al.
1991 |
Adapted from Chapman and
Howard, 1984 ( * = 'of value') |
| M1UB - |
Marine, Subtidal, Unconsolidated Bottom |
0 |
|
|
| M2AB - |
Marine, Intertidal, Aquatic Bed |
3 |
|
|
| M2RF - |
Marine, Intertidal, Reef |
2 |
|
|
| M2RS - |
Marine, Intertidal, Rocky Shore |
1 |
|
|
| M2US - |
Marine, Intertidal, Unconsolidated Shore |
2 |
|
|
| E1UB - |
Estuarine, Subtidal, Unconsolidated Bottom |
0 |
|
|
| E2AB - |
Estuarine, Intertidal, Aquatic Bed |
4 |
|
* |
| E2RS - |
Estuarine, Intertidal, Rocky Shore |
2 |
|
|
| E2US - |
Estuarine, Intertidal, Unconsolidated Shore |
4 |
|
* |
| E2EM - |
Estuarine, Intertidal, Emergent |
4 |
|
* |
| R1UB - |
Riverine, Tidal, Unconsolidated Bottom |
0 |
|
* |
| R1AB - |
Riverine, Tidal, Aquatic Bed |
4 |
|
* |
| R1RS - |
Riverine, Tidal, Rocky Shore |
2 |
|
|
| R1US - |
Riverine, Tidal, Unconsolidated Shore |
4 |
|
* |
| R2UB - |
Riverine, Lower Perennial, Unconsolidated
Bottom |
0 |
|
* |
| R2RS - |
Riverine, Lower Perennial, Rocky Shore |
1 |
|
|
| R2US - |
Riverine, Lower Perennial, Unconsolidated
Shore |
2 |
|
* |
| R3RB - |
Riverine, Upper Perennial, Rock |
0 |
|
|
| L1UB - |
Lacustrine, Limnetic, Unconsolidated Bottom |
0 |
1 |
|
| PUB - |
Palustrine, Unconsolidated Bottom |
2 |
0 |
* |
| PAB - |
Palustrine, Aquatic Bed |
3 |
2 |
* |
| PEM - |
Palustrine, Emergent |
4 |
3 |
* |
| PSS - |
Palustrine, Scrub-Shrub |
4 |
4 |
* |
| PFO - |
Palustrine, Forested |
3 |
3 |
* |
| U - |
Upland |
0 |
|
|
| Gibbs, J.P., J.R. Longcore, D.G. McAuley
and J.K. Ringelman. 1991. Use of Wetland Habitats by Selected Nongame
Water Birds in Maine. U.S. Fish Wildl. Serv., Fish Wildl. Res. 9.
57pp.
Chapman, B.R. and R.J. Howard. 1984. Habitat suitability index
models: great egret. Biol. Rept. 82(10.78),
U.S. Fish and Wildlife Service
** Suitability based upon literature, and higher anticipated productivity
in wetlands and in tidal waters with aquatic macro-vegetation, and
by greater accessibility to forage in wetlands offering limited
obstructions.
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