نتایج جستجو برای: nosema ceranae
تعداد نتایج: 592 فیلتر نتایج به سال:
Recent declines in honey bee populations and increasing demand for insect-pollinated crops raise concerns about pollinator shortages. Pesticide exposure and pathogens may interact to have strong negative effects on managed honey bee colonies. Such findings are of great concern given the large numbers and high levels of pesticides found in honey bee colonies. Thus it is crucial to determine how ...
The Western honey bee (Apis mellifera L., Hymenoptera: Apidae) is a species of crucial economic, agricultural and environmental importance.In the last ten years, some regions world have suffered from significant reduction colonies. In fact, losses are not an unusual phenomenon, but in many countries worldwide there has been notable decrease families. cases USA, European countries, Middle East r...
Studies of the ecoimmunology feral organisms can provide valuable insight into how host–pathogen dynamics change as transition from human-managed conditions back wild. Honey bees ( Apis mellifera Linnaeus) offer an ideal system to investigate these questions colonies social insects often escape management and establish in While managed honey bee have low probability survival absence disease tre...
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