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. 2021 May 17;10(5):1003. doi: 10.3390/plants10051003

Table 1.

Shannon diversity Index (H) of total arthropods and Hymenoptera parasitoids (mean ± s.e.m.) in 1′ suction samples/plot with sown selected flower plants or with natural vegetation at the margins of a processing tomato crop, from late-May to mid-July.

Field Margin Shannon’s Diversity Index (H)
Total Arthropods Hymenoptera Parasitoids
WT Mean
21/5–15/7
Mean
17/6 &15/7
WT Mean WT/Margin
(21/5–15/7)
Mean WST/Margin (17/6 & 15/7)
WST WST
21/5 3/6 23/6 15/7 21/5 3/6 23/6 15/7
WM 1.96 ± 0.06 1.91 ± 0.04 2.57 ± 0.08 2.60 ± 0.07 2.26 ± 0.08 A 2.58 ±0.05 A 1.77 ± 0.18 0.59 ± 0.34 1.35 ± 0.21 1.67 ± 0.09 1.34 ± 0.15 A 1.51 ± 0.12
NV1 1.51 ± 0.25 1.66 ± 0.29 2.46 ± 0.03 1.96 ± 0.16 1.90 ± 0.14 B 2.21 ±0.13 B 0.94 ± 0.23 0.23 ± 0.23 1.70 ± 0.22 0.84 ±0.26 0.93 ± 0.19 B 1.28 ± 0.24
NV2 1.80 ± 0.03 1.97 ± 0.18 2.40 ± 0.11 1.98 ± 0.11 2.04 ± 0.08 B 2.19 ±0.12 B 1.04 ± 0.04 0.66 ± 0.38 1.62 ± 0.14 0.89 ± 0.21 1.05 ± 0.15 AB 1.26 ± 0.20
SM 2.21 ± 0.26 2.16 ± 0.20 2.19 ±0.15 B 16.7 ± 3.4 12.0 ± 2.1 0.89 ± 0.30
Mean WT/date 1.79 ± 0.08 c 1.86 ± 0.09 c 2.49 ± 0.05 a 2.25 ± 0.11 b 1.34 ± 0.15 a 0.51 ±0.19 b 1.52 ± 0.12 a 1.23 ± 0.15 a
Mean WST/date 2.43 ±0.07 b 2.23 ±0.09 a 0.99 ± 0.53 0.80 ± 0.41
WT
2-way
ANOVA
Mixture: F2,32 = 9.94, p = 0.0004; Date: F3,32 = 21.33, p < 0.0001; Mixture × Date: F6,32 = 1.99, p = 0.0966 Mixture: F2,32 = 3.53, p = 0.0413; Date: F3,32 = 10.16, p < 0.0001; Mixture × Date: F6,32 = 2.12, p = 0.0788
WST
2-way
ANOVA
Mixture: F3,20 = 5.57, p = 0.0060; Date: F1,20 = 6.55, p = 0.0187;
Mixture × Date: F6,20 = 2.13, p = 0.1288
Mixture: F3,20 = 1.99, p = 0.1475; Date: F1,20 = 3.71, p = 0.0686;
Mixture × Date: F6,20 = 2.46, p = 0.0928