Honeybees change pollination behaviour

[prakel]

A study of honeybee pollination behaviour (on almonds) and the way in which that behaviour changes depending on whether they're faced with competition from other bee species.

http://rspb.royalsocietypublishing.org/content/280/1754/20122767.abstract

[Alton]

Why they change their behavior. I mean this is important to make honey in their hives. And they also get pollen grains from flowers for pollination. This process is limited and seasonal. then how they change it??

moderator edit- to remove link