When comparing the escape rates between the pots using the Tukeytype multiple comparison test (q0.05,∞,3 = 3.314), the escape rate of the BOX pot was significantly lower than those of the DOME pot (qc = 14.73, p < 0.05) and DOME-T pot (qc = 14.50,p < 0.05), while those of the two DOME pots were not significantly different (qc = 1.47, p > 0.05).