Fig. 2From: Host choice in a bivoltine bee: how sensory constraints shape innate foraging behaviorsOverview of the cylinders and experimental setup used for bioassays. Two identical cylinders each were used to test the decoupled olfactory (a) and visual cues (b) or coupled cues (c), either of Taraxacum or Campanula, vs. respective negative controls (empty cylinders), and to test olfactory, visual or olfactory + visual cues of Taraxacum vs. those of Campanula. Two different types of cylinders each were used to test olfactory vs. visual cues (d) and the coupled cues vs. either olfactory (e) or visual (f) cues of either T. officinale or C. trachelium. Arrows indicate air flow (1 l min−1), which was generated by a membrane pumpBack to article page