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Field Survey Summary Tables – Ecodistricts
65
Table 52. Density, species richness and weed-free quadrats in the surveyed crops in each ecodistrict
(continued)
Number of
Density
Species
Weed-free
fields surveyed
(number/m
2
)
(number /field)
quadrats
Crop
mean SE median
mean SE
%
SE
Bow City Plain (818)
20
15.9
3.4
11.0
5.0
0.8
26.8
9.9
Annual crops
12
18.9
5.3
10.2
6.7
1.0
24.9 12.5
Vauxhall Plain (823)
81
6.7
1.3
1.3
2.4
0.2
62.9
5.4
Annual crops
68
7.0
1.6
0.9
2.4
0.3
64.6
5.8
Cereal crops
39
8.1
1.8
1.6
3.0
0.4
53.9
8.0
Spring wheat
27
6.5
2.0
1.2
2.8
0.5
60.4
9.4
Barley
10
12.8
4.0
7.7
4.0
0.5
36.4 15.2
Broad-leaved annual crops
29
5.5
2.7
0.1
1.6
0.4
79.0
7.6
Canola
11
10.2
6.5
0.0
1.2
0.6
78.8 12.3
Perennial crops
13
5.2
1.3
3.2
2.3
0.4
54.4 13.8
Alfalfa
10
6.4
1.5
7.0
2.4
0.5
48.0 15.8
Foremost Plain (828)
111
6.7
1.2
2.6
2.7
0.2
61.6
4.6
Annual crops
97
4.6
0.9
2.4
2.7
0.2
65.1
4.8
Cereal crops
55
6.7
1.5
3.8
3.5
0.3
54.0
6.7
Spring wheat
33
6.4
2.2
3.7
3.9
0.4
55.9
8.6
Barley
13
8.5
2.4
4.8
2.4
0.4
49.5 13.9
Broad-leaved annual crops
42
1.7
0.4
1.0
1.7
0.2
80.3
6.1
Canola
16
1.9
0.5
1.7
1.9
0.3
76.1 10.7
Dry beans
14
2.0
0.8
0.7
1.3
0.3
82.3 10.2
Perennial crops
14
20.2
6.2
6.8
2.5
0.6
38.5 13.0
Purple Springs Plain (829)
35
4.1
0.7
2.5
2.2
0.3
69.4
7.8
Annual crops
26
3.5
0.9
2.1
1.7
0.2
76.2
8.4
Cereal crops
13
6.2
1.3
3.5
2.2
0.2
65.4 13.2
Broad-leaved annual crops
13
0.8
0.3
0.3
1.2
0.3
87.2
9.3