>
>So does anyone know of any potential studies they might be referring to ?


I believe it was Zach Huang at Michigan State who wrote the paper. He 
discovered a pheromone in empty combs that stimulates the bees to 
fill them. At least that's how I understood the report.
Mike 

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html

Access BEE-L directly at:
http://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=BEE-L