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Field Survey Summary Tables – Counties
100
Table 103. Density, species richness and weed-free quadrats in the surveyed crops in each county
Number of
Density
Species
Weed-free
fields surveyed
(number/m
2
)
(number /field)
quadrats
Crop
mean SE median
mean SE
%
SE
Cardston
24
8.6
2.2
5.7
2.6
0.4
46.6 10.2
Annual crops
15
7.1
3.0
26.6
2.3
0.6
60.8 12.6
Cereal crops
13
7.3
3.5
2.6
2.0
0.7
64.6 13.3
Cypress
23
35.7
8.1
15.0
4.7
0.8
33.0
9.8
Annual crops
14
23.6
9.3
5.1
4.9
0.9
41.8 13.2
Cereal crops
12
26.7 10.6
8.1
5.3
1.0
40.0 14.1
Forty Mile
47
3.1
0.5
2.2
3.3
0.3
60.7
7.1
Annual crops
44
2.7
0.3
3.9
3.3
0.3
61.5
7.3
Cereal crops
26
3.7
0.5
3.1
4.2
0.4
51.5
9.8
Spring wheat
21
3.3
0.4
3.0
4.5
0.4
53.1 10.9
Broad-leaved annual crops
18
1.3
0.2
1.4
2.1
0.3
75.8 10.1
Lethbridge
141
18.6
2.9
7.1
3.8
0.2
40.4
4.1
Annual crops
127
19.5
3.2
12.0
4.0
0.2
38.6
4.3
Cereal crops
105
22.5
3.8
8.4
4.2
0.2
34.5
4.6
Spring wheat
43
21.0
4.3
10.0
3.9
0.3
30.9
7.0
Barley
47
25.5
7.2
8.0
4.3
0.4
36.9
7.0
Corn
15
16.5
5.1
5.1
4.7
0.5
36.2 12.4
Broad-leaved annual crops
22
4.2
1.1
2.5
2.9
0.5
60.0 10.4
Canola
14
3.9
1.1
2.7
2.6
0.4
59.5 13.1
Perennial crops
14
10.6
4.0
14.8
2.3
0.3
55.8 13.3
Newell
121
14.0
1.3
7.8
4.0
0.2
31.7
4.2
Annual crops
69
12.0
1.7
3.8
4.9
0.2
36.1
5.8
Cereal crops
48
13.9
2.2
7.3
5.0
0.3
32.2
6.7
Spring wheat
28
13.7
2.4
7.7
5.2
0.4
30.5
8.7
Barley
13
17.8
5.8
3.9
4.7
0.4
31.9 12.9
Broad-leaved annual crops
21
7.5
1.8
3.3
4.7
0.4
45.0 10.9
Canola
16
6.2
1.9
2.4
4.8
0.4
49.7 12.5
Perennial crops
52
16.6
2.1
14.3
2.8
0.3
25.8
6.1
Alfalfa
43
16.9
2.2
11.6
2.9
0.3
23.0
6.4
Taber
152
4.4
0.6
1.6
2.0
0.1
70.3
3.7
Annual crops
126
3.8
0.6
0.1
1.8
0.1
74.3
3.9
Cereal crops
70
6.2
1.0
2.5
2.4
0.2
62.6
5.8
Spring wheat
43
5.1
1.2
2.2
2.3
0.2
69.9
7.0
Barley
18
9.3
2.4
4.9
2.8
0.3
48.6 11.8
Broad-leaved annual crops
56
1.0
0.3
0.0
1.1
0.2
88.9
4.2
Canola
15
0.3
0.2
0.0
0.3
0.2
96.7
4.6
Dry beans
17
1.7
0.7
0.1
1.1
0.3
85.9
8.4
Potatoes
14
0.9
0.3
0.6
1.7
0.3
83.6
9.9
Sugar beets
10
0.7
0.5
0.0
1.2
0.6
90.0
9.5
Perennial crops
26
7.0
1.3
9.9
2.8
0.3
51.0
9.8
Alfalfa
16
6.1
1.4
3.7
2.6
0.4
54.7 12.4
Grass hay
10
8.4
2.3
5.0
3.1
0.6
45.0 15.7
Vulcan
25
19.8
3.6
14.2
4.5
0.6
28.4
9.0
Annual crops
17
25.3
4.6
39.4
5.7
0.7
18.2
9.4
Cereal crops
12
24.5
4.8
16.8
6.4
0.8
12.9
9.7
Warner
15
6.4
1.9
3.9
3.8
0.5
43.7 12.8
Wheatland and Rocky View
13
16.5
6.2
4.7
3.6
0.7
41.1 13.6
Annual crops
10
10.1
3.4
1.5
3.5
0.6
47.9 15.8
Willow Creek
10
24.8
9.1
9.1
3.4
0.8
33.0 14.9