FIGURE 8.

Change in simulated migration curves as the critical parameters—c_crit, f_hi, and v—are varied in the case where no oxygen is consumed. Note that the light shaded curve is identical in each plot. (a) Lower values of c_crit shift the position of the peak to shorter times indicating a faster response by the bacteria. (b) A lower high turnaround frequency, f_hi, leads to longer tails after the peak. Minimal tails are observed experimentally. (c) Lower bacterial velocities, v, lead to sharper peaks.