Table 17. Gravel bar vegetation observed on habitat sample sites located in the Bourbeuse River watershed (*hydrologic unit # 07140103-) Missouri, 1997. Values represent stream bar numbers within defined categories.Total # of bars = A + B + C. Gravel Bar Vegetation Status Land Use
Gravel Bar Vegetation Status Land Use
Stream Order Total # of BarsA (A) Early successional or woody strems1 (B) Grasses and sedges2 Large bars3 (C) No veg.bars4 % of sites with forest, urban, or woodland5 % of sites with cropland or grassland land use5
LOWER BOURBEUSE HYDROLOGIC UNITS*-100-001,002
6 23 13 6 7 4
57% 26% 17% 50% 50%
SPRING, BOONE, RED OAK CREEK HYDROLOGIC UNITS* - 090-007,006,005
3 2 1 2
100%
4 20 1 10 10 9
5% 50% 45% 63% 37%
MIDDLE BOURBEUSE HYDROLOGIC UNITS* - 090-008,004,001
3 1
1
100%
4 1 1 1
100%
5 12 4 5 5 3
33% 42% 25%
6 22 11 8 5 4
50% 36% 18% 67% 33%
LITTLE BOURBEUSE RIVER HYDROLOGIC UNITS* - 090-002,003
3 3 2 1
67% 33%
4 31 10 10 7 11
32% 32% 35%
5 8 4 4
50% 50% 46% 54%
DRY FORK HYDROLOGIC UNITS* - 040-002,001
2 3 1 3
100%
3 5 1 1 4
20% 80%
4 14 4 2 7 8
29% 14% 57% 50% 50%
UPPER BOURBEUSE HYDROLOGIC UNITS* - 020-002,003,001
3 2 2 ND
100%
4 14 4 2 4 8
29% 14% 57%
5 6 4 2 2
67% 33% 57% 43%

A Representing all bars in the sample reach (not the row total).

1 Early successional (< 1" diameter stems) to woody (< 1" diameter stems).

2 Number gravel bars with grasses/sedges.

3 Number of large gravel bars out of total number.

4 Bars with no vegetation, easily disturbed.

5 Land use surrounding the site as possible reason for gravel deposition (30-meter resolution TM satellite imagery).

Return to Habitat Text