التفاصيل البيبلوغرافية
| العنوان: |
Idiopathic brood disease syndrome and queen events as precursors of colony mortality in migratory beekeeping operations in the eastern United States |
| المؤلفون: |
vanEngelsdorp, Dennis1 dennis.vanengelsdorp@gmail.com, Tarpy, David R.2 david_tarpy@ncsu.edu, Lengerich, Eugene J.3 elengerich@psu.edu, Pettis, Jeffery S.4 Jeffery.Pettis@ars.usda.gov |
| المصدر: |
Preventive Veterinary Medicine. Feb2013, Vol. 108 Issue 2/3, p225-233. 9p. |
| مصطلحات موضوعية: |
*ANIMAL clutches, *BEEKEEPING, *EPIDEMIOLOGY, *QUEEN honeybees, *COLONIES (Biology), *MORTALITY |
| مصطلحات جغرافية: |
UNITED States |
| مستخلص: |
Abstract: Using standard epidemiological methods, this study set out to quantify the risk associated with exposure to easily diagnosed factors on colony mortality and morbidity in three migratory beekeeping operations. Fifty-six percent of all colonies monitored during the 10-month period died. The relative risk (RR) that a colony would die over the short term (∼50 days) was appreciably increased in colonies diagnosed with Idiopathic Brood Disease Syndrome (IBDS), a condition where brood of different ages appear molten on the bottom of cells (RR=3.2), or with a “queen event” (e.g., evidence of queen replacement or failure; RR=3.1). We also found that several risk factors—including the incidence of a poor brood pattern, chalkbood (CB), deformed wing virus (DWV), sacbrood virus (SBV), and exceeding the threshold of 5 Varroa mites per 100 bees—were differentially expressed in different beekeeping operations. Further, we found that a diagnosis of several factors were significantly more or less likely to be associated with a simultaneous diagnosis of another risk factor. These finding support the growing consensus that the causes of colony mortality are multiple and interrelated. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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