Figure 8. The Michelsen et al. (1989) mechanical bee direction experiments suffered a flaw in experimental design (e.g., Wenner and Wells, 1990:excursus PN). A) The results they obtained when a mechanical bee provided information about a station in one direction, with test stations located on either side of it and in the opposite direction (data from Michelsen et al., 1989: fig. 2A, total of three experiments).

B) A distribution one might expect for a population of bees orienting from downwind and ending up distributed according to the distance of each station from the center of the odor field.

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