Waterfowl Production on the Woodworth Station
in South-central North Dakota, 1965-1981
Table 5. Wetland size: average number and area during four survey periods,
Woodworth Study Area, 1965-75.
Table 5. Wetland size: average number and area during four survey
periods, Woodworth Study Area, 1965-75.
Size (ha) |
Mid-May |
Early June |
Early July |
Early August |
|
n |
ha |
n |
ha |
n |
ha |
n |
ha |
≤0.09 |
56 |
3 |
41 |
2 |
23 |
1 |
11 |
1 |
0.10-0.25 |
91 |
16 |
79 |
14 |
45 |
7 |
26 |
5 |
0.26-0.50 |
77 |
28 |
72 |
27 |
45 |
15 |
28 |
11 |
0.51-0.75 |
30 |
18 |
29 |
17 |
22 |
12 |
15 |
9 |
0.76-1.00 |
23 |
20 |
22 |
19 |
16 |
13 |
11 |
9 |
1.01-2.00 |
33 |
45 |
31 |
43 |
23 |
37 |
21 |
30 |
2.01-5.00 |
21 |
64 |
20 |
62 |
19 |
55 |
16 |
48 |
5.01-10.00 |
3 |
20 |
3 |
19 |
3 |
17 |
2 |
16 |
10.01-25.00 |
9 |
148 |
9 |
147 |
9 |
147 |
8 |
136 |
≥25.01 |
4 |
168 |
4 |
168 |
4 |
168 |
4 |
168 |
Total |
347 |
530 |
310 |
518 |
209 |
472 |
142 |
433 |
Previous Section -- Table 4.
Return to Contents
Return to List of Tables
Next Section -- Table 6.