Two-color leather: description, distribution, photo

Two-colored leather is a small-sized bat from the Gladkonosyh family. Outwardly, this animal is not very attractive, but it has an interesting structure and peculiarities of behavior, characteristic only for this species. That is why it is interesting to many animal lovers.

Spread

Two-colored leather is common in the center and in the west of Europe, in Asia, inhabits the territory of Ukraine. He prefers to settle in woodlands, steppes and mountains. Sometimes it occurs in megacities. This species is protected in wildlife preserves and reserves of different countries of the world, since the threats of its disappearance are great. The blame for this situation was global changes in climatic conditions, insecticides, as well as negative people in relation to all species of bats.

There are no exact data on the number of leathers. They are rather fragmentary. Two-colored leather in the summer, settles tree hollows, lofts, under the cornices, rock cracks, etc. Sometimes these mice divide their shelter with other bats. They are found in England and in France, Norway and central Russia, in Iran and China, in the Himalayas. In many regions, a two-colored leather is considered a vulnerable species. The Red Book of the Perm Region, for example, was replenished by these animals several years ago.

The species has not been sufficiently studied, but there is a suggestion that the two-colored skins fly to the south for wintering. Two wintering of these animals in the Perm region and the caves of Bashkiria were discovered. There is information about wintering in the caves of the Sverdlovsk region.

Appearance

Two-colored leather in length does not exceed six and a half centimeters, and the span of its wings reaches thirty-three centimeters. The weight of the animal varies from twelve to twenty-four grams. This mouse on the back has a dark brown with impregnations of red hairs, fur. On the abdomen, it has a grayish shade.

The wings are noticeably narrower, the ears are wide and round. Life expectancy ranges from five to twelve years. Hands are equipped with flying membranes, which are fastened at the base of the fingers. Strongly developed supra-angular lobes.

Two-color leather: behavior

This animal leaves for hunting half an hour after sunset, but more often with the onset of deep twilight. All night he hunts, flying at an altitude of about thirty meters above the fringes and glades, along mountain gorges, among trees, over the steppes and even over the water. The flight is very fast, recalls the flight of the Vespers.

Two-colored leather hunts using ultrasonic vibrations with a frequency of 25 kHz. When the weather is very cold or windy, the skins can skip hunting. In areas where the skin is widely distributed, it regulates the population of some insects.

Since these bats are rarely found, the researchers collected insufficient information. At the time of birth of the young, females form small colonies, in rare cases large clusters, which include more than fifty individuals. Groups of males can reach two hundred and fifty animals, but more often they prefer solitude.

Often the skins migrate, flying quite large distances (about one and a half thousand kilometers). From October to March, the two-colored leather jacket hibernates. They hibernate these mice, as a rule, alone and carry the temperature down to -2.6 ° C. By their economic significance, leathers are recognized as useful animals - they destroy many harmful insects.

Save mode

In recent years, there has been a decline in the number of these animals. The reason for this is a complex of anthropogenic factors: the restriction of places for settlement in modern buildings, the modernization of old buildings, the sealing of attics, the destruction of a large number of individuals by a man using pesticides used for the disinfestation and preservation of wood.

In 2011, this species was replenished with the Red Book of Ukraine. The bi-color leather is protected in all the reserves and reserves of this country as a vulnerable species, prone to a decrease in the population. A ban on the anxiety of hibernation and brood colonies was introduced. Environmental campaigning is carried out. The two-color kozhan is listed in the Red List of EUROBATS, IUCN, and also in the second annex of the Berne Convention.