Caption: The bumblebee, shown here visiting a flowering native milkweed plant in July 2009, is one of about 400 native pollinators, mainly solitary bees, which are active in Wisconsin. Entomologists at the University of Wisconsin-Madison say preserving habitat in prairies and savannas can sustain native bee populations and help pollination, even if colony collapse disorder continues to damage honeybee hives.
Photo: courtesy Hannah Gaines/UW-Madison
High-resolution JPEG