title: Establishing food site vectors in desert ants.
abstract: When returning to the site of a successful previous forage, where does one search for the goodies? Should one rely on experience from the previous homebound journey, or should one consider the outbound journey as well, or even exclusively? Desert ants are particularly well suited for pursuing this question because of their primary reliance on path integration in open and featureless desert habitats. Path integration has been studied particularly with regard to homing after lengthy foraging trips. The ants also use path integration to return to plentiful feeding sites, but what is memorised for revisiting the feeder remains controversial. Here, we demonstrate that desert ants consider, and indeed linearly average, both outbound and inbound travel for their return to a familiar feeder. This may be interpreted as a strategy to reduce navigation errors.
authors.affiliation: Institute of Neurobiology, University of Ulm, D-89069 Ulm,  Germany.
authors.forename: Siegfried
authors.initials: S
authors.lastname: Bolek
authors.forename: Matthias
authors.initials: M
authors.lastname: Wittlinger
authors.forename: Harald
authors.initials: H
authors.lastname: Wolf
mesh_terms: D000818:Animals; D001000:Ants / Q000502:physiology*; D003463:Cues; D005247:Feeding Behavior; D005502:Food; D006702:Homing Behavior / Q000502:physiology*; D007858:Learning; D009949:Orientation / Q000502:physiology*; D013028:Space Perception / Q000502:physiology