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Fig. 2. Trajectories to a food site from displaced (D1, D2, D3) and training (T)
start points. For clarity, not all the recorded trajectories are plotted. We
show 13, 13, 10 and 13 releases from sites D1–D3 and T, respectively,
and the mean vectors of all the first segments (grey arrows). Mean vectors are
measured with respect to the direct line between each starting point and the
food site. The direction and 95% confidence interval of each mean vector are
D1: 4.76±6.61°, r=0.95, N=30; T:
–2.20±6.62°, r=0.94, N=34; D2:
11.9±7.82°, r=0.93, N=29; D3:
14.4±18.4°, r=0.87, N=13. Data come from 12 ants.
Solid black circles indicate cylinders, and F indicates the food site. Food
was removed during these tests.
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