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Avian Use of Purple Loosestrife Dominated Habitat Relative to Other Vegetation Types in a Lake Huron Wetland Complex

Table 1




TABLE 1. Mean cover (Robel) height (cm) ± SE and mean water depth (cm) ± SE by period and vegetation type in Saginaw Bay wetlands, 1994 - 1995.
  Period 1   Period 2   Period 3
Year and sitea Cover height Water depth   Cover height Water depth   Cover height Water depth
1994 SS 27.8 ± 4.3 27.5 ± 0.9   55.0 ± 5.9 12.1 ± 3.2   75.7 ± 8.1 25.4 ± 2.9
1995 SS 35.8 ± 3.4 24.4 ± 0.8   68.8 ± 4.3 14.4 ± 0.7   74.6 ± 5.5 1.9 ± 0.6
1994 WM/SS -b -   62.8 ± 4.2 saturated   56.7 ± 3.5 saturated
1995 WM/SS 24.4 ± 4.1 0.2 ± 0.2   67.8 ± 7.8 saturated   100.8 ± 8.7 saturated
1994 WM/SS/LS - -   107.5 ± 11.0 saturated   101.1 ± 3.9 saturated
1995 WM/SS/LS 30.0 ± 8.5 saturated   48.9 ± 4.2 saturated   87.8 ± 9.5 0.5 ± 1.7
1994 WM/LS - -   84.4 ± 8.8 saturated   106.7 ± 8.2 2.2 ± 0.4
1995 WM/LS 38.9 ± 4.8 saturated   63.3 ± 3.3 saturated   87.8 ± 6.4 saturated
1994 WM - -   81.7 ± 5.1 0.3 ± 0.2   83.9 ± 2.6 1.8 ± 0.8
1995 WM 30.6 ± 2.6 saturated   61.1 ± 4.3 saturated   68.3 ± 6.7 saturated
1994 IC 80.0 ± 3.2 29.9 ± 2.0   70.7 ± 4.1 21.0 ± 1.7   110.6 ± 7.2 26.4 ± 1.4
1995 IC 41.4 ± 6.6 17.1 ± 3.4   52.4 ± 9.0 13.3 ± 2.5   94.8 ± 6.4 7.7 ± 1.9
1994 CC - -   71.2 ± 7.5 22.0 ± 2.6   144.3 ± 8.2 31.6 ± 2.4
1995 CC 60.3 ± 4.7 9.1 ± 1.4   82.2 ± 6.3 12.5 ± 1.5   127.9 ± 8.3 22.2 ± 1.7
1994 CB - -   11.3 ± 3.4 33.5 ± 1.4   34.7 ± 5.5 36.8 ± 1.2
1995 CB - -   8.9 ± 2.7 23.7 ± 0.8   33.2 ± 3.6 30.1 ± 1.1
a Vegetation types: SS = scrub-shrub, WM/SS = wet meadow/scrub-shrub, WM/SS/LS = wet meadow/scrub-shrub/loosestrife, WM/LS = wet meadow/loosestrife, WM = wet meadow, IC = inland cattail, CC = coastal cattail, CB = coastal bulrush.
b Dashes (-) indicate insufficient or lack of data.

Previous Section -- Figure 1 -- Characters of surveyed vegetation types in Saginaw Bay Wetlands.
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Next Section -- Table 2 -- Distribution of breeding birds by vegetation type in Saginaw Bay wetlands, 1994 - 1995.

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