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Results of international standardised beekeeper surveys of colony losses for winter 2012-2013 : analysis of winter loss rates and mixed effects modelling of risk factors for winter loss.

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Academic year: 2019

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Table 1. Extent of use of varroa treatments and corresponding overall loss rates, for 1-50 colony operations; columns 2 and 3 relate to operations which provided usable information about varroa mite treatment and columns 4 and 5 are for operations providi
Table 2. Percentage of weak colonies in spring 2013, by country, for beekeepers with 1 to 50 colonies; Croatia and Scotland did not provide this data and are omitted
Table 3. Breakdown of beekeeper and colony numbers by size of beekeeping operation, for beekeepers with valid loss data
Table 5. Overall loss rates for winter 2012-2013 for beekeepers with 51 to 150 colonies, by country; confidence intervals were not estimated when there were fewer than 5 respondents in the relevant group
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