Table 2. Pearson correlations (r-values) between response variables of the 60 study locations in 30 fields.

	Vegetation cover	Pollinator species richness	Pollinator abundance	Aphid abundance	Predator abundance	Predator-prey ratio
Plant species richness	0.72****	0.73****	0.77****	−0.52****	0.60****	0.53****
Vegetation cover		0.77****	0.83****	−0.65****	0.56****	0.79****
Pollinator species richness			0.98****	−0.75****	0.49***	0.60****
Pollinator abundance				−0.75****	0.52****	0.66****
Aphid abundance					−0.21 ns	−0.56****
Predator abundance						0.59****

Variables are transformed (see statistical analyses).

Significance levels:

****P<0.0001;

***P<0.001;

n.s. = not significant.