Fig. 2

Bioassays (mean ± standard error) between a soldier and a dead dealate of N. chilensis. Treatments: with its own cuticular compounds (with CC); without cuticular compounds (without CC); with a cuticular compounds disguise coming from another dealate which was a nestmate or a non-nestmate of the soldier (chemical disguise); and a soldier confronting a dead dealate disguised with its own cuticular compounds (control of chemical disguise). a. Aggressive events, b. Alarm states and c. Non-aggressive states. * = significant difference (P < 0.05); ** = significant difference (P < 0.01); n.s.: non-significant differences (P > 0.05)