The beekeepers

"Thanks to humans, bumble bees are world travelers, spreading to countries that never hosted bumble bees before. For centuries these insects pollinated our crops. But are they pushing out native pollinators? Why are some species of bumble bees flourishing whereas others are floundering, to the point of possibly disappearing forever? . . . explores these questions and tells the tale of bumble bees' history with humans . . . highlights the interconnectedness of the two species, and touches on the topics of endangerment and extinction, the impact on human agriculture, bumble bee habitats and ecology, and the current crisis of bee protection"--Provided by publisher.