Bumblebee community in southern Ontario in drastic decline over past 35 years

Surveys performed in 1971-1973 and in 2004-2006 document an impoverishment of the bumblebee community in southern Ontario over the past 35 years. Bombus affinis in particular was found to have declined drastically in abundance. The loss of any bumblebee species may result in cascading impacts on native fauna and flora.

Authors: Colla SR and Packer L (2008) Bodivers Conserv 17: 1379-1391