Find the cause of the extinction of bees
Canadian, British and German scientists the first large-scale European study confirmed that neonicotinoid adversely affect the bee population. Two of the relevant work published in the journal Science.
In the first study, the researchers observed for the three types of bees that lived in areas growing oilseeds, processed neonicotinoids. It turned out that the number of insect populations declined sharply in Hungary and the UK but not in Germany (because of the access of insects to a wide range of flowering). In all three countries witnessed a decline in the reproductive capacity of bees.
In the second study, the researchers monitored the canadian bees living near corn fields, are also treated with insecticides. It turned out that the average life expectancy of worker bees of these areas was below normal, also reduced the number of Queen bees in families.
Scientists have observed bees that live or are located close to fields with a total area of two thousand hectares. Experts note that in the degradation of populations of bees involved several factors, the use of neonicotinoids is one of them. It is noted that the study was funded by companies that produce insecticides, but the results were interpreted by independent experts.
Bees are important for pollination of plants. In the US alone insect pollinated, according to various estimates, up to a quarter of all crops. The relevant service market in the country is estimated at 10-15 billion dollars per year.
One of the reasons for the extinction of bees, scientists also referred to as world trade in insects leading to the spread of the mite parasite Varroa destructor.