A national survey of managed honey bee 2011–12 winter colony losses in the United States: results from the Bee Informed Partnership
Open Access
- 1 January 2013
- journal article
- Published by Taylor & Francis in Journal of Apicultural Research
- Vol. 52 (2) , 44-53
- https://doi.org/10.3896/ibra.1.52.2.07
Abstract
SummaryEstimates of winter loss for managed honey bee (Apis mellifera) colonies are an important measure of honey bee health and productivity. We used data from 5,500 US beekeepers (5,244 backyard, 189 sideline and 67 commercial beekeepers) who responded to the April 2012 Bee Informed Partnership Winter Colony Loss Survey and calculated loss as the difference in the number of colonies between October 1, 2011 and April 1, 2012, adjusting for increases and decreases over that period. In the US, the total colony loss was 22.5% for the 2011–12 winter; 45.1% (n = 2,482) of respondents reported no colony loss. Total loss during 2011–12 was substantially lower than loss during 2010–11 (29.9%). Of the 4,484 respondents who kept bees in 2010–11 and 2011–12, 72.0% reported that the loss during 2011–12 was smaller or similar to the loss during 2010–11. There was substantial variation in total loss by state (range 6.2% to 47.7%). The average loss per beekeeping operation was 25.4%, but the average loss was not signif... ResumenLas estimaciones de pérdidas invernales de colonias manejadas de la abeja de la miel (Apis mellifera) son un indicador importante de la salud y la productividad de la abeja de la miel. Se utilizaron datos de 5.500 apicultores estadounidenses (5.244 con colmenas en el jardín, 189 en linderos y 67 apicultores comerciales) que respondieron a la encuesta sobre pérdida de colonias de abril de 2012 de la Asociación Bee Informed (Estar Informado), y se calcularon las pérdidas como la diferencia respecto al número de colonias del 1 de octubre de 2011 y el 1 de abril de 2012, ajustando para el aumento y la disminución durante ese período. En los EE.UU., la pérdida total de colonias fue de 22,5% para el invierno 2011–12; el 45,1% (n = 2.482) de los encuestados informó que no hubo pérdida de colonias. La pérdida total en 2011–12 fue sustancialmente menor que la pérdida durante 2010–11 (29,9%). De los 4.484 encuestados que mantenían abejas en 2010–11 y 2011–12, el 72,0% informó que la pérdida durante 2011–12 f...Keywords
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