As scientists search for the reasons why, large bee populations continue to die off at alarming rates. The insect's role as a vital cog in agricultural processes makes their rapid disappearance all the more concerning. Habitat destruction must certainly be considered as one explanatory factor for the troubling trend, as urbanization and sprawl have dealt a considerable blow to the ecosystems where these insects flourish. Britain alone has lost 98 percent of its wildflower meadows in the past 70 years. A new research initiative led by the University of Bristol is examining the way bees and their fellow pollinators function within the urban and suburban environs they are increasingly forced to inhabit. The Urban Pollinators Project, is studying pollinator populations in gardens in UK cities Bristol, Leeds, Edinborough, and Reading. The initiative is joined by a similar (and identically-named) project sponsored by the University of Washington that takes Seattle as its laboratory.