Foragerantslayattractivetrailpheromonesto guidenestmatestofood1,2, buttheeffectiveness offoragingnetworksmightbeimproved ifpheromonescouldalsobeusedtorepel foragersfromunrewardingroutes3,4. Herewe presentempiricalevidenceforsuchanegative trailpheromone, deployedbyPharaoh’sants (Monomoriumpharaonis) asa‘noentry’signal tomarkanunrewardingforagingpath. This findingconstitutesanotherexampleofthe sophisticatedcontrolmechanismsusedinselforganized antcolonies.
CITATION STYLE
Robinson, E. J. H., Jackson, D. E., Holcombe, M., & Ratnieks, F. L. W. (2005). ‘No entry’ signal in ant foraging. Nature, 438(7067), 442–442. https://doi.org/10.1038/438442a
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