Resources
Gulf of Maine Library Collection
Identification of Important Habitats in
the Lower Casco Bay (Maine) Watershed
Table 5. COMPARISON OF OBSERVED
WADING BIRD USE OF INLAND WETLANDS AND WETLAND RANKING CRITERIA
Data from 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. [87 Maine wetlands,
20 variables, 1501 visits.]
| VARIABLES =>
(from Gibbs et al)
|
PERCENTAGE OPEN WATER
|
WETLAND AREA (HECTARES)
|
LIFE FORM DIVERSITY
|
nwi types * most used by waders
|
nwi types rarely used by waders
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( examined only l,pab,pem,pf,pss,pub) |
| SPECIES |
signif. |
preferred |
not preferred |
signif. |
preferred |
not preferred |
signif. |
preferred |
not preferred |
|
|
| Amer. bittern |
0.01 |
28.8 |
54 |
ns |
|
|
0.05 |
1.8 |
1.3 |
pss,pf,pem,pab |
pub |
| great blue heron |
0.05 |
35 |
54 |
0.01 |
10 |
4 |
ns |
|
|
pss,pf,pem,pab,l |
pub |
| green-bk. heron |
ns |
|
|
0.05 |
3 |
8 |
ns |
|
|
pss |
pab,l,pf,pub |
| Virginia rail |
ns |
|
|
0.05 |
17.8 |
7 |
ns |
|
|
pss,pf |
pab,l,pub |
| sora rail |
0.05 |
19.8 |
46 |
ns |
|
|
ns |
|
|
pss,pem,pf |
l,pub |
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| Condition for |
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| preferred |
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| WWH ranking => |
|
35 to 65 |
|
|
medium to large |
3 or more wetl.types
|
TYPE |
RANKING |
|
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|
l |
5 |
| Species' |
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|
pab |
4 |
| preference |
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|
pem |
3 |
| compared to |
|
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|
pf |
2 |
| WWH criteria => |
|
1 of 5 agree |
|
2 of 5 agree |
|
1 of 5 agree |
pss |
1 |
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pub |
6 |
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* National Wetland
Inventory Types |
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pab |
Palustrine aquatic bed |
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pem |
Palustrine emergent |
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pf |
Palustrine forested |
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pss |
Palustrine scrub shrub |
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pub |
Palustrine unconsolidated bottom |
|
