Figure 4. Predicted relationship between mean (a) pest control and (b) crop pollination service (z-scores (solid lines) ± 95% CI (dashed lines)) and landscape simplification (percentage of arable crops in the landscape) in fields with adjacent floral planting (red line; red circles) or without planting (black line; black triangles). Pollination services, but not pest control services, declined with landscape simplification; the slight differences in slopes for pollination-landscape simplification relationships of fields with or without adjacent plantings were statistically not significant.