Bumblebees are native Hymenoptera, which account for close relatives of honeybees. Approximately three hundred species of bumblebees are found in North Africa, North America and northern Eurasia. They are also found in the mountains some of the other regions of the globe.
As seen above, the bees prefer the Northern regions, which is not surprising in view of the fact that they are among the most cold resistant insects. They can heat his body up to a temperature of 40 degrees Celsius, which is required for full activity of the insect. To do this, the bumblebees are used, frequent and rapid contraction of the muscles of the chest.
Thanks to its developed thermoregulation they can fly to collect nectar in the early morning when the air is still too cold and other insects are still sitting in their shelters. In the end, the first nectar it goes to these hardy workers.
At an ambient temperature of 5 degrees in bumblebee keeping the temperature of 36 degrees, and at 35 – 45 degrees. For this reason, the bumblebees can not fly at very high temperatures – they overheat.
Interestingly, during the flight, about 90% of the energy is converted into heat and therefore of a flying bumblebee has a constant temperature.
However, despite all the “Nordic” nature of the Bumblebee, and it has a cooling mechanism.
To this end, the bumblebee in flight produces a drop of liquid from the mouth, which evaporates cools an insect’s head.
Flying bumblebee can develop a speed of about 18 kilometers per hour. Bumblebees live in colonies. Each of them consists of 50-200 individuals. Colony of bees consists of three types: male, worker bees (immature females) and females.
The construction of the nest begins with the female uterus in the spring, alone.
An interesting difference between bees from other public bee is that the larvae feed by and developed in the same cell together. If conditions are normal, then the female lays 200 to 400 eggs which gives worker bees, then moves on to the eggs from which will grow the males and females.
Many years ago, it was seen that in bumblebee nests shortly before dawn there is a kind of “trumpeter”. For a long time it was believed that his buzz he raises bees to work. But studies have shown that the blower just shivering because the temperature of the soil in the wee hours greatly reduced.
Socket and is cooled to maintain its temperature, bees have struggled to work their pectoral muscles.
In the heat at the entrance to a hornet nest, too, can see the fluttering wings of the insect. This time, however, the bumblebee does not do it to increase the temperature and ventilation of the home.
As with bees, bees have poison, however unlike its distant cousins a thorn in the human skin they do not leave. Accordingly, they can sting not once, but many times in a row.
There are so-called psithyrus, which are parasitic way of life, placing their eggs the other bees in their hives. In addition, they mimic their coloration.
A common misconception, though Bumble-bees fly in, breaking the laws of aerodynamics.
Most likely this misconception arose in the early twentieth century, when the bumblebees tried to apply the calculation of the lift force, which were intended for aircraft. However, a physicist at Cornell University Zheng Jane van it has been proven that no physical laws of flying insects are not violated.
To come to such conclusions, physics had a very long time to simulate on a supercomputer complex movement of air around quickly flapping bumblebee wings. As noted by the Jane Zheng Wang, the myth of the “wrong” flying bumblebee has arisen from lack of understanding of the aviation engineers of the unsteady viscous gas dynamics.
Due to the fact that bumblebees are not aggressive insects, they can be widely used in garden allotments. Moreover there is even such a little-known branch as smilevideo. This sector is engaged in cultivation of bees for pollination of agricultural crops with the aim of increasing the yield of the latter.