Table 1. Linear mixed model results for colony measures of waggle-dance intensity.

Response variable	Factor	Factor type	d.f.	Test statistic	P-value
Number of dance bouts	substance	fixed (a = 2)	1,39.0	F = 26.66	p<0.0001**
	time of day	fixed (a = 3)	2,39.0	F = 11.27	p = 0.0001**
	substance*time of day	(interaction)	2,39.0	F = 6.15	p = 0.0048**
	colony	random (a = 3)	–	Z = 0.99	p = 0.1604
Total number of waggle runs	substance	fixed (a = 2)	1,41.0	F = 6.60	p = 0.0139*
	time of day	fixed (a = 3)	2,41.0	F = 15.52	p<0.0001**
	substance*time of day	(interaction)	2,41.0	F = 4.52	p = 0.0168*
	colony	random (a = 3)	–	Z = 0.99	p = 0.1612
Number of bees engaged in waggle dancing	substance	fixed (a = 2)	1,38.1	F = 1.01	p = 0.3214
	time of day	fixed (a = 3)	1,38.3	F = 0.82	p = 0.4492
	colony	random (a = 3)	–	Z = 0.90	p = 0.1834

* indicates a significant p-value (p<0.05), ** indicates a highly significant p-value (p<0.01).