Determination of the Beta Ray Energy Spectrum from the Absorption Curves of Beta Rays

<p>(a) The decrease in food-discovery time between the first tests on two successive days; (b) the positive correlation between colony size and the number of workers searching (mean values for the first tests on the two successive days are presented). The asterisk indicates a significant difference.</p

The effect of the time interval (in days, horizontal axis) between tests on the difference between food-discovery time before and after this interval (Δ discovery time, vertical axis).

<p>Values above zero indicate that colonies reached the food reward faster after the time interval than before it, while values below zero indicate that colonies reached the food reward faster before the time interval. As intervals become large, food-discovery time returns to the basic initial levels (around zero), which takes place according to this model after ~16 days.</p

The effect of colony size and maze complexity on the three foraging response variables on the first day and test.

<p>The effect of colony size and maze complexity on the three foraging response variables on the first day and test.</p

The effect of day (before and after the time interval) and the time interval between days on the three foraging response variables.

<p>N = sample size (number of colonies).</p