Pollinators in Peril: A systematic status review of North American and Hawaiian native bees

States that crop pollination by bees provides 35% of the global food supply or one of every three bites of food
Conducts a systematic review of the status of all 4,337 North American and Hawaiian native bees
Finds that, among native bee species with sufficient data to assess (1,437), more than half (749) are declining
Finds that nearly 1 in 4 (347 native bee species) is imperiled and at increasing risk of extinction
Finds that a primary driver of these declines is agricultural intensification, which includes habitat destruction and pesticide use, and that climate change and urbanization are also major threats