Patch Departure Behavior of Bumble Bees: Rules and Mechanisms

Table 1

Departure patterns of bumble bees on treated inflorescences of Aconitum columbianum. Four microliters of 30% sucrose solution were placed in bottom flowers of the inflorescence, with zero microliters (empty) in second-from-bottom flowers. The notation in this and all subsequent tables is $X$, 2 standing for bees that began by visiting the empty second flower first, without visiting the bottom flower. 1, 2 stands for bees visiting the treated bottom flower and then the empty second flower. Goodness of fit test for the null hypothesis of equal probability to depart: ${\chi }^2=4.67\text{,}$$P<.01$.

	Stay	Depart	Probability (Depart)
$X$, 2	13	6	0.32
1, 2	19	1	0.05