Individual study: Below ground nest boxes used by five species of bumblebee Bombus spp. near Urbana, Illinios, USA
Frison T.H. (1926) Experiments in attracting queen bumblebees to artificial domiciles. Journal of Economic Entomology, 19, 149-155
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Provide artificial nest sites for bumblebees
A trial of 36 underground bumblebee nest boxes in woodland and meadows near Urbana, Illinois, USA, found 48% of the boxes were occupied by a total of five species of bumblebee from 1915 to 1919 (Frison 1926). The boxes were made of tin or cypress wood, provided with grass from field mouse nests, and had an entrance spout or pipe at ground level. Some had a copper gauze base, to allow drainage.