Declining populations of pollinators is a major concern to ecologists because bees, butterflies and other insects play a critical role in supporting healthy ecosystems. Now a new study from urban ecologists at the University of Massachusetts Amherst suggests that when urban and suburban lawns are left untreated with herbicides, they provide a diversity of “spontaneous” flowers such as dandelions and clover that offer nectar and pollen to bees and other pollinators.
Private lawns make up a significant part of urban lands in the United States, an estimated 50 percent of city and suburbs, say Susannah Lerman and co-author Joan Milam, an adjunct research fellow in environmental conservation. They write, “Practices that support nesting and foraging opportunities for bees could have important implications for bee conservation in suburban areas.”
Lerman, an adjunct UMass Amherst faculty member who is also with the U.S. Forest Service, says, “We are still surprised at how many bees we found on these untreated lawns.”
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