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. 2012 Aug 23;8(8):e1002670. doi: 10.1371/journal.pcbi.1002670

Figure 1. Poisson distribution of intervals between the arrival of successive returning foragers at the nest.

Figure 1

The figure shows representative data from one trial in which returning foragers were removed. Intervals are shown in video frames; each frame is 1/30 sec. The y-axis is the probability that the interval i between successive returning foragers exceeds t frames. The solid blue line corresponds to the real data and the dotted red line corresponds to the exponential fit y = e −0.0326 t with a mean separation time of 1/0.0326 or 30.67 frames, equal to 1.02 seconds.