Fig. 4
From: Origin, behaviour, and genetics of reproductive workers in an invasive ant
Results from the aggression tests between O. smaragdina workers and A. gracilipes normal or physogastric workers from queenright or queenless colonies. a: Highest aggression score for each trial, b: Number of fights initiated by A. gracilipes and O. smaragdina workers, c: Number of fights that resulted in the death of the O. smaragdina worker and/or the death of one of the three A. gracilipes workers. See Table 1 for statistical results