Fig. 1
From: Physical and biological effects on moths’ navigation performance

Experimental bioassay. A A schematic illustration of the wind tunnel experiments in a choice assay between two different odor sources; Left: Undisturbed flow, Right: Disturbed flow. The vertical cylinder is placed 0.2 m upwind of one odor source. Blue and red represent the emitted plumes of different source quality, B the trajectory segmentation: an example of a 3D trajectory (teal circles), each segment connecting two consecutive positions. The straight white line depicts the distance. An inset showing the triangle of velocities of one segment. A segment is represented by the ‘track’ vector (grey). Each segment has a duration of \(\Delta t=0.013\) sec