The bees do not find homes In the second study, from French researchers have instead looked white c

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New research linking the mass death of bees all over the world to the use of pesticides. It is about two studies that studied in detail how a specific group of pesticides affects the behavior of bumblebees and bees. And the results indicate that even doses that are not lethal white ceramic bread bin to insects have significant white ceramic bread bin impact on how they fare in the long run.
Sudden deaths of bees, or Colony Collapse Disorder in English, has affected white ceramic bread bin populations of bees worldwide in recent years. What lies behind bidöden is not fully understood. Mites, viral diseases, for long time, breeding, white ceramic bread bin and pesticides have been identified as potential causes.
And now, therefore, two new studies that support the theory that precisely pesticides may be behind the problem. It's about neonicotinoids, a group of drugs used to control insects, known as insecticides.
Neonicotinoids began to emerge during the early 90s. And both studies suggest that these drugs have harmful effects on bees and bumble bees, even in cases where the doses are not directly lethal to bees and bees.
It is not just a concern for beekeepers. Bees, both wild and domestic, is considered one of the most important animals in agriculture, in class with pigs and cattle, as it has a crucial role in the pollination of many flowering crops, fruits and vegetables.
Fewer queens In one study, conducted in the UK, has been examined hops colonies and how bumblebees affected by the insecticide imidacloprid. In the experiments were subjected hops colonies in the early stages of doses of the preparation equivalent to what bumblebees are typically exposed in the British farmland.
Then got bumblebees engage in what bees do the most, that is flying around and drinking nectar. After six weeks, the researchers white ceramic bread bin weighed bumblebees nests to determine white ceramic bread bin how much each colony grown up.
Compared to the colonies white ceramic bread bin not exposed to imidacloprid, they were exposed colonies around ten percent white ceramic bread bin less. This is because according to researchers at the exposed bumblebees were less successful in their foraging.
But especially important is that the exposed colonies produced 85 percent fewer queens, something that greatly affects how many colonies that may arise in the coming season, after overwintered queens.
The bees do not find homes In the second study, from French researchers have instead looked white ceramic bread bin at honey bees. By mounting small radio transmitters on bees have been able to study how the bees move when they are outside the hive. And even in this case we tested how the bees were affected by a non-lethal dose of a nikotinoid, in this case preparation thiamethoxam.
The bees exposed to the poison ran between two to three times more likely to die while they were outside the hive, compared to kontrollbin not exposed to the poison. Scientists white ceramic bread bin believe white ceramic bread bin that it is linked to the drugs are designed to attack the insect nervous system.
Using data from the transmission experiment, the research also simulate how the colony would be affected in the long term by more bees die when they are out and fly. The model results indicated that colony in time reaches a point where it difficult to recover after being exposed to the pesticide.
- Bidöden also has to do with other pesticides and bee habitat is destroyed so that they may struggle to find food. The thing that puts extra carbon in the discussion of neonicotinoids is that in previous studies found that they make the bees more susceptible to diseases, says Ingemar Fries.
The researchers behind the studies in Science argues that the damage from the neonicotinoids underestimated, precisely white ceramic bread bin because man when testing means just look at the dose that is directly lethal to bees. The results clearly show that even indirect white ceramic bread bin effects such as the reduced number of queens of bumblebees white ceramic bread bin and it dropped the local mind his bees, can have a major in