From skylight input to behavioural output: A computational model of the insect polarised light compass
Fig 9
Dealing with time and light disturbance.
Transformation of the compass response to solar elevation, and to the derivative of the solar azimuth function. (A–C) Function of the elevation with respect to the response with disturbance η = 6%, η = 26% and η = 43%; the red dots are the predicted solar elevation given the compass response, and the black dot denote the real values; the dashed lines give the range of the function. (D) Function of the real derivative of the solar azimuth against its prediction using Eq (9); black line shows perfect match of the two derivatives; colour denotes the time: blue is for morning and red is for evening.