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How Do Ants Make Sense of Gravity? A Boltzmann Walker Analysis of Lasius niger Trajectories on Various Inclines

Figure 5

A — Distribution of headings , B — corresponding motion speed , C — mean free path , and D — , the asymmetry coefficient of the phase function.

The heading domain has been split into 16 sectors (each centered on the corresponding ). The upper row shows for inclinations increasing from left to right the proportion of segments headings falling in each sector, and the lower rows show the average quantities computed over the corresponding segments sets. Std. err. for B, C, D are in the order twice the thickness of the line.

Figure 5