Of flowers and bees..

We all know that pollinators use flower characteristics (fragrance, shape, size and colour) to discriminate between different flower species and locate pollen and nectar resources. But do flowers have preferences for pollinators? Well, some are made in a way that only a long proboscis will enter or their size makes sure that only the correctly sized pollinator will be successful etc. and now an israelian researcher has found that at least the evening primrose can "hear" the pollinator and with her team showed that "pollinator sounds, and synthetic sound signals at similar frequencies, cause vibration of the petals and evoke a rapid response – an increase in the plant’s nectar sugar concentration." Although they are not the only ones to show data that support the sensing of flowers, these findings caused a debate in the scientific community and has yet to be confirmed on a larger scale. But as the researcher pointed out "Plant response to sound could allow bi-directional feedback between pollinators and plants, which can improve the synchronization between them, lowering nectar waste, and potentially improving the efficiency of pollination in changing environments. "
That does make sense!