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Figure 2 | Frontiers in Zoology

Figure 2

From: Smells like home: Desert ants, Cataglyphis fortis, use olfactory landmarks to pinpoint the nest

Figure 2

Experimental paradigm. Training. Nest situated within blue border strip; channel width and height, 7 cm, length, 16 m; position of feeder (F), 8 m downwind from nest entrance (NE); Training odour, 20 μl of either indole, nonanal, decanal, methyl salicylate (each diluted 1:50 in hexane), or hexane as solvent control. Odours were reapplied every 20 min. Test. Capture site of ants at NE; point of release at RP; position of odour in test channel 1 m upwind of RP; ants were tested with training odour, non-training odour, or solvent control. Analysis. Schematic search run. Six turning points after the ant had passed the odour for the first time were analysed for their median distance to the stimulus.

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