niger workers followed the 6-TPB trail for longer distances than their own trail pheromone, indicating an additive effect of con- and hetero-specific pheromones on trail-following. niger, all species did not recognize the trail pheromones of N. rubra sensed the trail pheromones of all community members and unexpectedly that of T. In gas chromatographic-electroantennographic detection analyses of a six-species synthetic trail pheromone blend (6-TPB), La. We tested the hypotheses that ant community members (Western carpenter ants, Camponotus modoc black garden ants, Lasius niger European fire ants, Myrmica rubra) (1) sense, and follow, each other’s trail pheromones, and (2) fail to recognize trail pheromones of allopatric ants (pavement ants, Tetramorium caespitum desert harvester ants, Novomessor albisetosus Argentine ants, Linepithema humilis). Ants deposit trail pheromones that guide nestmates to food sources.
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