Winter Loss Survey 2011 -2012

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A national survey of managed honey bee 2011-12 winter colony losses in the United States: results from the Bee Informed Partnership

IBRApaper2011-2012Published in the Journal of Apicultural Research, this survey in its sixth consecutive year, reports the winter 2011 – 2012 losses in the USA at 22.5%.

Angela M Spleen, Eugene J Lengerich, Karen Rennich, Dewey Caron, Robyn Rose, Jeff S Pettis, Mark Henson, James T Wilkes, Michael Wilson, Jennie Stitzinger, Kathleen Lee, Michael Andree, Robert Snyder and Dennis vanEngelsdorp, for the Bee Informed Partnership. 2013. A national survey of managed honey bee 2011-12 winter colony losses in the United States: results from the Bee Informed Partnership. Journal of Apicultural Research 52(2): 44-53.

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Winter Loss Survey 2010 -2011

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A national survey of managed honey bee 2010-11 winter colony losses in the USA: results from the Bee Informed Partnership

Published in the Journal of Apicultural Research, this study records the fifth consecutive year that winter losses of managed honey bee colonies in the USA have been around 30%.

vanEngelsdorp, D., D. Caron, J. Hayes, R. Underwood, K. R. M. Henson, A. Spleen, M. Andree, R. Snyder, K. Lee, K. Roccasecca, M. Wilson, J. Wilkes, E. Lengerich, and J. Pettis. 2012. A national survey of managed honey bee 2010-11 winter colony losses in the USA: results from the Bee Informed Partnership. Journal of Apicultural Research 51: 115-124.

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Winter Loss Survey 2009 – 2010

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A survey of managed honey bee colony losses in the USA, fall 2009 to winter 2010

Published in the Journal of Apicultural Research, this survey found that over the winter of 2009-2010, US beekeepers lost an average of 42.2% of their colonies, for a total loss of 34.4%.

vanEngelsdorp, D., J. Hayes Jr, R. M. Underwood, D. Caron and J. S. Pettis. 2011 A survey of honey bee colony losses in the United States, fall 2009 to spring 2010. Journal of Apicultural Research. 50: 1-10

Winter Loss Survey 2008 – 2009

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A survey of honey bee colony losses in the United States, fall 2008 to spring 2009

Published in the Journal of Apicultural Research, this survey found that an estimated 29% of all US colonies died over the winter of 2008-2009.

vanEngelsdorp, D., J. Hayes Jr, R. M. Underwood, and J. S. Pettis. 2010. A survey of honey bee colony losses in the United States, fall 2008 to spring 2009. Journal of Apicultural Research. 49: 7 -14.

Winter Loss Survey 2007 – 2008

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A Survey of Honey Bee Colony Losses in the U.S., Fall 2007 to Spring 2008

Winter Losses by state 2008Published in PlosOne, the survey reported a total loss of 35.8% of colonies; an increase of 11.4% compared to the previous year.

vanEngelsdorp D, Hayes J Jr, Underwood RM, Pettis J (2008) A Survey of Honey Bee Colony Losses in the U.S., Fall 2007 to Spring 2008. PLoS ONE 3(12):e4071. doi:10.1371/journal.pone.0004071

Winter Loss Survey 2006-2007

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An Estimate of Managed Colony Losses in the Winter of 2006 – 2007: A Report Commissioned by the Apiary Inspectors of America.

Published in the American Bee Journal, the 2006 – 2007 survey was the first Winter Loss Survey. It was conducted by members of the Apiary Inspectors of America (AIA). The total loss and average loss of bees in all operations was 31.8% and 37.6%, respectively.

vanEngelsdorp D, Underwood R, Caron D, Hayes J Jr (2007) An estimate of managed colony losses in the winter of 2006–2007: a report commissioned by the Apiary Inspectors of America. Am Bee J 147: 599–603.