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The number of pollinium insertions and removals per visit (±1 SE) in Apis mellifera (black bars), Bombus spp. (gray bars), lepidopterans (open bars). Asterisks indicate P < 0.05 for comparisons between visitor taxa in insertions or removals per visit. We calculated the P values using likelihood ratio tests that compared coefficients (β) estimated from a zero-inflated Poisson generalized log-linear model.
