Table 3. Variation in nectar foraging performance for nine bumblebee colonies.

colony	foraging rate (mg/hr)
	median	interquartile range	range (min/max)	bouts
A	22.02	24.82	−7.8/129.5	38
B	27.14	71.17	−112.5/255	45
C	27.93	47.70	−160/1400	93
D	25.56	53.24	−120/480	71
E	35.72	55.63	−91.6/234.2	52
F	30.26	41.34	−47.6/181.4	65
G	25.93	38.17	−70.3/372	51
H	38.82	61.25	−45.8/341.5	81
I	34.47	43.85	−24.6/300	41

Data presented are the median, interquartile range, and range (minimum and maximum) foraging rates for each colony calculated for the number of foraging bouts indicated in the last column.