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Functional Significance of Labellum Pattern Variation in a Sexually Deceptive Orchid (Ophrys heldreichii): Evidence of Individual Signature Learning Effects

Fig 6

Fast Fourier Transform (FFT) of stimuli used in the honeybee experiments.

Whereas the two types of crosses (A) differ widely in their FFT, the Ophrys pattern of same inflorescences (B) as well as those from different plants (C) show high similarity in their FFTs.

Fig 6