'Honey bee health has been on the decline for two decades, with U.S. and Canadian beekeepers now losing about 25 to 40% of their colonies annually. And queen bees are failing faster than they have in the past in their ability to reproduce. The reason has been a mystery, but researchers at North Carolina State University and the University of British Columbia are finding answers.'
In summary, the study finds queens suffering from a lack of viable sperm and links this event to several proteins. Now to figure out - why?
While this article doesn't have THE answer, I believe it provides information that will facilitate our understanding of significant new discoveries in queen viability! Hurry up and get on with it!! :)