A single-pheromone model accounts for empirical patterns of ant colony foraging

We present a computational model showing that a single pheromone accounts for empirical patterns of ant colony foraging previously modeled using two pheromones. Our model demonstrates that the dynamics of pheromone deposition, evaporation, and ant behavioral responses to concentration gradients can produce the full range of observed foraging patterns with a simpler single-pheromone mechanism.