... as a control system, we compared them in the same dimension; we calculated hypothetical positions of the tethered bees on the basis of the measured variation in the vertical force, and compared them with the visual stripe positions. The resultant gain and phase data were plotted on a Bode plot. A transfer...

... of the change in wind direction. As the stimulus frequency increases, the response amplitude decreases. The Bode plot shows that at frequencies above 1 s −1 the phase of the following response lags by almost 360°. The dynamic temporal behaviour of the wind-orientation system is comparable with that of a control...