Table 1.

Theoretical and observed proportions of visits to occupied flowers among visits to high-quality flowers in each experimental combination with conspecifics (the asterisk indicates that the observed proportion of visits to occupied flowers could not be computed because bees did not visit high-quality flowers).

demonstrator density	floral community	sequence	theoretical proportion	observed proportion first visit	observed proportion sequence (mean ± s.e.)
low	simple	1	0.2	0.20	0.18 ± 0.05
	simple	2	0.2	0	0.09 ± 0.03
	complex	1	0.2	*	0.18 ± 0.06
	complex	2	0.2	0.50	0.14 ± 0.04
high	simple	1	0.6	0.75	0.56 ± 0.09
	simple	2	0.6	0.67	0.49 ± 0.05
	complex	1	0.6	0.67	0.62 ± 0.09
	complex	2	0.6	1	0.53 ± 0.10