Even just looking at the flow & congestion control by it self, it's not similar to TCP. Or at least the article didn't go into details. How does the decrement a

Even just looking at the flow & congestion control by it self, it's not similar to TCP. Or at least the article didn't go into details. How does the decrement and increment of the rate is being done. In TCP we have the congestion window. Which is increasing and decreasing as a function of the state of the algorithm (slow start, congestion avoidance) and the occurrence of packet-loss or perceived packet-loss by the algorithm. In the article it's not clear how Ants are adjusting the amount of ants out there.