Impact of shock on the cumulative flight propensity of Glossina morsitans morsitans tsetse flies emerging from pupae that were transported at the age of 22 and 29 days. (a) Scatter plot of the correlation temperature and flight propensity, (b) Scatter plot of the correlation between the shock variable (Angle_mean_15 max) and the flight propensity. Significant values are indicated by p < 0.05.