Table 1.

Mean (±SE) number of termites that spent time tunneling for different time intervals when the number of minutes each termite spent tunneling on both days was combined. Trials were conducted on consecutive days with the same group of 30 workers with two groups from each colony.

Time Spent Tunneling	Mean (±SE) Number of Termites
None	14.0 ± 2.6a
1–10 min	5.0 ± 1.4ab
11–20 min	3.8 ± 0.9ab
21–40 min	3.8 ± 0.6ab
41–60 min	1.5 ± 0.3b
> 60 min	1.8 ± 0.5b

Kruskal-Wallis: H = 17.48; df = 5; P = 0.004.