Fig. 9: Delimitation of the virtual zones on the bottom of the arena for video analysis under two conditions. | npj Biofilms and Microbiomes

Fig. 9: Delimitation of the virtual zones on the bottom of the arena for video analysis under two conditions.

From: Interplay between antipredator behavior, parasitism, and gut microbiome in wild stickleback populations

Fig. 9

In the control condition (A), dotted lines define three equal-sized zones (Start, Middle, Opstart), with the blue rectangle indicating the Center zone and the Border representing the entire arena minus the Center zone. In the predator-exposed condition (B) (shown here before the robotic predator is triggered), the same zone layout is used. The robotic predator is positioned in the Start zone, with an additional hidden zone beneath it and an Entry zone marked by a dotted ellipse around the predator.

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