Spiders in Siberia: what animals can withstand the harsh climate

The most common types of spiders in Siberia

Spiders that live in dwellings are not dangerous to humans. They weave their webs behind cabinets, in corners, in dark and damp rooms. Domestic spiders feed on flies, moths, cockroaches. But arthropods living in wildlife settle in meadows, in ravines, in forests, in vegetable gardens. Accidentally fall through open doors into people's homes. Basically, they are nocturnal, live from spring to autumn, and die.

Cross

Habitat Krestovika there may be a forest, a field, a garden, abandoned buildings. This is a small spider, up to 2 cm long. There is a pattern in the form of a cross on the upper part of the abdomen. Because of him, the spider got its name - Cross. Its poison kills the victim within a few minutes, but for humans it is not fatal.

The spider does not attack itself, he accidentally crawls into shoes or things left on the ground, and if pressed down, he can bite. But people have options:

Steatoda

Spider steatoda.

Steatoda called false karakurt, as it looks similar to it. The steatoda spider is large in size, the female is up to 20 mm long, the male is slightly smaller. On the head are large chelicerae and pedipals, more reminiscent of another pair of legs. There is a red pattern on the black, shiny abdomen, in young packs it is light, but the older the spider, the darker the pattern becomes. He hunts at night and hides from the sun during the day. Various insects get into his nets, and they serve him as food.

Steatoda venom is lethal to insects, but not dangerous to humans. The bite site swells and turns red, edema may appear.

black fathead

Spider black fathead.

A very bright spider that lives in Siberia. The female is larger than the male and not as conspicuous. The male is distinguished by a variegated coloration, the head and abdomen are velvety, black in color, with four large red dots on the upper body, the legs are powerful with white stripes. This spider is popularly called the ladybug.

black fathead lives in sunny meadows, in burrows. It feeds on various insects, but prefers beetles. She does not show aggression, at the sight of a person she tries to hide faster and bites in order to protect herself. The bite site becomes numb, swollen, turns red. Symptoms usually go away after a few days.

This type of spider is often confused with the South American black widow, which has a red hourglass pattern on its abdomen. But in the conditions of Siberia, this exotic species of spiders cannot survive.

Black Widow

Spider black widow.

This species of arthropod may appear in Siberia when intense heat begins in its habitats. Spider Black Widow poisonous, but does not attack first and when meeting a person, it tries to quickly leave. Mostly females bite, and then only when they are in danger. They are much larger than males, and on the black, shiny belly of this species of spiders is a red hourglass pattern.

There are 4 pairs of long legs on the body. On the head are powerful chelicerae that can bite through the chitinous layer of rather large insects that serve as food for spiders. The reaction of the human body to the bite of a black widow can be different, for some it causes an allergic reaction, but for some the following symptoms appear:

Conclusion

Poisonous spiders living in Siberia, in wildlife, are not aggressive and do not attack humans first. They protect themselves and their territory, and if a person, through negligence, collides with an arthropod, he may suffer. Timely medical care will relieve the health-threatening consequences of a bite.