The Role Of Varroa And Viral Pathogens On The Collapse Of Honeybee Colonies : A Modelling Approach
865 Words Oct 4th, 2016 4 Pages
Summary: The mites that affect bees are vectors for disease, therefore being a large contributor to colony death. The mites contribute to the number of bees affected by deformed wing virus and acute paralysis virus, the acute paralysis is a chronic problem and therefore resides rather permanently in a hive, however acute paralysis required over 10,000 mites to be introduced for a large scale infection to occur. The less imperative pathogen, deformed wing virus, required only 2,000-3,600 mites to be introduced to the hive to have an effect on the colonies overall health.
Cycles that both the mites and these pathogens are involved in often coordinate themselves with weather and seasonal changes. This opens up the possibility of climate change causing changes that may prove to be of further detriment to these colonies. Both premature death and changes in behavior are threatening effects that these diseases may have. Bees do have some preventative behaviors to counteract the fact that they are in such close quarters. Some examples include hygienic behavior and the excretion of anti-microbial substances. Treatment can be administered by beekeepers as well, but timing and necessity are very difficult to deduce.
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