Fig 3 . Average number of workers competing for resources between W. auropunctata (red) and native ant species in Mexico. Baits were placed at the boundaries of territorial patches (10 replicates). Top graphs interactions between W. auropunctata (red) and ground foraging ants S. geminata (yellow) and P. protensa (dark green). S. geminata is a superior competitor (\(x^{2}\)=55.976, p<0.0001) , but W. auropunctata displaces P. protensa on the ground (\(x^{2}\)=15.641, p<0.0001). Bottom graphs show interactions with the arboreal ants S. picea (cyan) and P. synanthropica (light green) (\(\ x^{2}\)=9.839, p= 0.0017). W. auropunctata gains a competitive advantage against S. picea, but losses against P. synanthropica in the trees (\(x^{2}\)=69.03, p< 0.0002).