foraging on male creeping willow catkins
this study the visitation rates of bumblebees, solitary bees and hoverflies to
a variety of spring flowering plants, typical of fixed dune habitat, were
investigated. The sugar composition of the nectar of each plant was examined,
as was the relative abundance of essential amino acids in the pollen of the
study plants, and the total abundance of floral units. These measurements were
then related to insect visitation rates.
Read the whole summary in: English! Read the scientific publication in JPE.