Bee visitation rate and visitor richness to <i>R. multiflora</i> and native forbs.

A) Visitation rate of bee visitors to R. multiflora and native plants across all sites. Errors indicate SE. Native plants in control and treatment plots were combined. All estimates of visitation rate significantly differed from each other (p<0.05) based on a randomization test. Sample sizes for each estimate are labeled at the bottom of each bar. B) Rarefied bee visitor richness to each plant species across all sites. Letters indicate groupings by 95% confidence intervals.