Waterfowl Production on the Woodworth Station
in South-central North Dakota, 1965-1981
Table 32. Percent of upland nest success among treatments in habitats
by duck species,
Woodworth Study Area, 1966-81a.
Table 32. Percent of upland nest success among treatments in habitats
by duck species, Woodworth Study Area, 1966-81a.
|
Mallard |
Gadwall |
Northern pintail |
Green-winged teal |
Blue-winged teal |
Northern shoveler |
American wigeon |
Lesser scaup |
Total |
Habitat and treatment |
n |
% |
n |
% |
n |
% |
n |
% |
n |
% |
n |
% |
n |
% |
n |
% |
n |
% |
Native prairie |
Burned |
98 |
10.2 |
184 |
24.0 |
49 |
21.3 |
8 |
25.7 |
750 |
17.2 |
59 |
22.3 |
19 |
29.8 |
20 |
25.4 |
1,187 |
18.3 |
Grazed |
18 |
12.8 |
79 |
25.5 |
22 |
4.0 |
14 |
16.4 |
330 |
12.3 |
19 |
3.6 |
2 |
2.6 |
10 |
9.1 |
494 |
13.0 |
Idle |
50 |
17.9 |
98 |
17.1 |
26 |
21.7 |
19 |
19.1 |
360 |
10.3 |
26 |
19.8 |
10 |
13.1 |
7 |
20.0 |
596 |
12.9 |
Seeded cover |
Burned |
24 |
16.2 |
58 |
31.4 |
12 |
13.1 |
1 |
100.0 |
107 |
21.5 |
14 |
7.0 |
3 |
54.5 |
4 |
11.8 |
223 |
22.7 |
Grazed |
2 |
3.7 |
1 |
2.4 |
1 |
100.0 |
0 |
0.0 |
14 |
4.4 |
1 |
100.0 |
0 |
0.0 |
2 |
3.4 |
21 |
9.3 |
Idle |
201 |
16.8 |
250 |
18.7 |
115 |
19.0 |
13 |
5.6 |
507 |
15.5 |
70 |
17.7 |
25 |
20.5 |
5 |
3.6 |
1,186 |
16.7 |
Cropland |
Standing crop |
4 |
2.5 |
7 |
55.5 |
5 |
5.5 |
0 |
0.0 |
18 |
33.8 |
3 |
3.2 |
0 |
0.0 |
2 |
25.0 |
39 |
20.7 |
Stubble |
0 |
0.0 |
0 |
0.0 |
2 |
1.3 |
0 |
0.0 |
5 |
2.9 |
0 |
0.0 |
0 |
0.0 |
0 |
0.0 |
7 |
2.3 |
Mulched stubble |
1 |
3.7 |
1 |
2.8 |
0 |
0.0 |
0 |
0.0 |
3 |
4.7 |
0 |
0.0 |
0 |
0.0 |
0 |
0.0 |
5 |
3.7 |
Summer fallow |
3 |
11.8 |
0 |
0.0 |
2 |
37.5 |
0 |
0.0 |
6 |
6.4 |
0 |
0.0 |
0 |
0.0 |
1 |
1.0 |
12 |
12.5 |
aPercent nest success is by the Mayfield
method.
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