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Figure 3


Fig. 3. Homeward routes of wood ants (Formica japonica) from a feeder and after displacement. (A) Map of site showing positions of trees behind the nest relative to the terrace. N marks the nest, F the food site and R one of the displaced release sites. B and C show the routes of full- and zero-vector ants, respectively. Inset shows mean directions of the initial part of the trajectories, with B extended in A to indicate the point of convergence. Trajectories from the food site (B) and close to the food site (C) are shown as solid lines. Trajectories from the displaced sites are shown as broken lines [adapted from Fukushi and Wehner (Fukushi and Wehner, 2004)].





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