Regulation of harvester ant foraging as a closed-loop excitable system
Fig 4
Plots of incoming foraging rate rin (blue) and outgoing foraging rate rout (red) versus time of day on August 20, 2016 for A) Colony 1357 and B) Colony 1317.
The quasi steady-state (QSS) where incoming and outgoing rates equilibrated to a near-equal value can be observed for both colonies. The QSS rate for Colony 1317 was more than twice as great as it was for Colony 1357.