I heard an interview, on NPR, with Laurence Packer, biologist. He has written a book entitled,
Keeping the Bees, Why all bees are at risk and what we can do to save them. He is concerned for the future of wild and domesticated bees.
http://www.npr.org/blogs/thesalt/2014/07/09/329994522/biologist-says-promoting-diversity-is-key-to-keeping-the-beesAn excerpt from article:
On long-term consequences if bees weren't around
Immediately, in the absence of bees, the affect on natural ecosystems would be that there'd be much fewer plants setting seed [in] many fewer nuts and berries. Fewer nuts and berries [means] fewer birds, fewer bears; the whole ecosystem would be impacted at some level, especially in the long term.
Same message as the film, which I have seen. Although Packer thinks wild bees are at a greater risk than the domesticated honeybee.