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United States. Agricultural Research Service
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South Dakota
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1. Spread of Africanized Honey Bees in the United States, 1990-2005
1990. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.