The stigmergie was initially observed in nature - the Fourmi S communicate by depositing Phéromone S behind them, so that other ants can follow the track to food or the colony according to the needs, which constitutes a system stigmergic. Similar phenomena are visible among all the species Eusocial are like the Termite S, which use phéromones to build the large ones and complex structures of ground using a simple decentralized rule. Each termite collects a little mud around him, incorporating in it of the phéromones, and deposits it by ground. As the termites are attracted by the odor, they more often deposit their package where others already deposited it, which forms pillars, arches, tunnels and rooms.
The term was introduced by the French biologist Pierre-Paul Grassé in 1959, in reference to the behavior of the termites. It defines it as: “Stimulation of the workers by the work which they carry out. ” The term comes from the Greek words στιγμα ( stigma ) “mark, sign” and εργον ( ergon ) “work, action”, expressing the concept that the actions of an agent leave signs in the environment, signs perceived by itself and the other agents and who determine their next actions.
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