Fig 5 . Long-term competitive interactions in Mexico between ground-foraging ants W. auropunctata and S. picea. The average number of live ant workers recorded at the end of long-term experiment (14-days). W. auropunctata has a higher number of workers found in nest boxes, including those workers that invaded S. picea nests (F=5.437, P=0.013)​. Error bars are standard errors of mean.