There was an interesting article in Science last month about looking at pollinators holistically - butterflies, flies, 20K species of bees, even some vertebrate

There was an interesting article in Science last month about looking at pollinators holistically - butterflies, flies, 20K species of bees, even some vertebrates - and contrasting to focus on one or a few of bee species. Unfortunately the online link needs login http://science.sciencemag.org/content/359/6374/392 http://science.sciencemag.org/content/359/6374/392