Bee keepers and scientists alike share the concern, and we who rely on the bees should too:
It has been stated by several biologists that, if it were not for the honey bee pollinating plants, humans would only last 3 or 4 years as our food supply would disappear [but see here].(Space). How it got to this is debatable, but we can agree to describe the bee / human relationship not as symbiotic, because the bees do not rely on us in return in the way we rely on them.
We are intelligent but they are intelligent too. A professor was doing an experiment, moving a source of nectar 25% further away each day, testing their navigation skills.
His student charged with the duty of calculating and moving the nectar each day called in one morning reporting to the professor that he had car problems and could not do the task on that day. The professor opted to do it himself:
When the professor arrived at the nectar source there were no bees present. But when he arrived at the place where the nectar should have been for that day (but had not been moved there yet), there were all the bees waiting for him! Not only had the bees gotten the math correct (25% farther), but the implication is that they had demonstrated the imagination to be able to picture the future by picturing the nectar—not where it was—but where it was going to be! The professor wrote that he would never have done such an experiment on purpose since he never would have thought that the bees could have been so intelligent!(ibid, Space, link above). Those of you who read the biomimicry posts know that one of the tenets of Ecocosmology urges us to remember that we can learn about how to bring about our own survival by watching and studying nature appropriately.
Learning such behavior from nature is called biomimicry.
We must also be careful to not destroy the bees or their habitat, because then we could cease to exist as well, according to some scientists.