[Pollinator] Value of honeybees to U.S. agriculture - request for info

[Kimberly Winter]

Dear Partners and Friends of NAPPC:

Would you be able to help us update our references regarding the value of 
bees to U.S. agriculture?

It appears that most estimates are given state-by-state by beekeeper groups 
and extension offices.  One Cornell study for the entire U.S. says:

"...the value of the increased yield and quality achieved through 
pollination by honey bees alone was $9.3 billion in 1989 and is $14.6 
billion today."

Morse, Roger A. and Nicholas W. Calderone.  2000.  The value of honey bees 
as pollinators of U.S. crops in 2000.  Bee Culture.  A.I. Root Publishing, 
Medina, OH. 15pgs. 
Http://www.beeculture.com/beeculture/pollination2000/pg15.htm.

Has there been a more recent estimate, perhaps one that includes the 
services of native bees as well?

Thanks in advance for your help,

~Kim

Kimberly Winter, Ph.D.
International Coordinator
North American Pollinator Protection Campaign
E-mail: NAPPCoordinator at hotmail.com
Internet: www.nappc.org
Ph: (301) 219-7030

Mailing Address:
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College Park, MD 20742-1026