Number of months required to reach a density of 20 mosquitoes/km2. Panel 1 (left to right) represents An. arabiensis in experiment mosqTran(a), panel 2, An. gambiae s.s. with the presence of An. arabiensis (mosqTran(a)), and panel 3, An. gambiae s.s. with no competition (mosqTran(b)). The red solid circle and triangle indicate the initial position of An. arabiensis and An. gambiae s.s., respectively.