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Fundamental frequency of flight (flight) and floral sonication (sonic) vibrations in bees visiting four buzz‐pollinated plant species in North America: Pedicularis groenlandica, P. parryi (Orobanchaceae), Solanum dulcamara, and S. elaeagnifolium (Solanaceae). We show data for bees within the Andrenidae and Colletidae, but did not include these families in our statistical analyses (see text). Presentation order of bee families is the same in both panels
