Figure 1.

Time series of colonies' latency to attack novel vibratory stimuli that are consistently paired with either a prey reward outcome (a,b) or the approach of an ant predator (c,d). Colonies were composed of nine naive spiders and one trained individuals whose training either matched (‘informed’, a,c) or mismatched (‘misinformed’, b,d) colonies' current environment. In half of these colonies, the trained individual was a keystone individual (purple) and in half of the colonies the trained individual was a generic individual (dark red). Control colonies (grey) did not contain informed or misinformed individuals. Green arrows depict the moment when trained individuals were removed from the colony. *p < 0.05, **p < 0.01, ***p < 0.001.