Frequencies and duration of insect group behaviors under natural conditions and under the flower visitor barriers per hour in 2010.

mean ± SE.
Control: natural conditions; 100-mm net: flower visitor barrier with a 100-mm mesh; 25-mm net: flower visitor barrier with a 25-mm mesh.
Different letters indicate significant differences in behaviors among the three insect groups using Tukey's multiple comparison test (P<0.05).
Observations were conducted over 14 h. Differences in behaviors among the three treatments were analyzed using Tukey's multiple comparison test.