How do earthworms spend the winter?

In winter, earthworms drill into the unfrozen soil deep in the ground to hibernate. There is a temperature suitable for them. Earthworms stop growing and begin to hibernate when the temperature is below 20 degrees. When it gets warm next spring, they will move again.

The living habits of earthworms

1. Nocturnal animals: earthworms are nocturnal animals that live in soil caves during the day and go out at night. They usually go out from 8 p.m. in summer and autumn to 4 a.m. the next day. Feeding and mating are carried out in dark conditions. I like the quiet surroundings. Most of the earthworms around the living industry and mine do not grow well or escape. Although earthworms are distributed all over the world, they prefer higher temperatures. When the temperature is below 8 ℃, they stop growing and the optimum temperature for reproduction is 22-26 ℃.

2. Omnivores: earthworms are omnivores. Except for glass, plastic and rubber, earthworms are eaten, such as humus, animal feces, soil bacteria, fungi and the decomposition products of these substances. Sensitive taste, sweet and sour taste, bitter taste, like hot and soft feed, especially gluttonous for animal food, the monthly food intake is equal to their own weight, and about half of the food is excreted as feces through the digestive tract. It has the habit that mother and son are unwilling to live together, especially in the case of high density, when the small ones reproduce and the old ones will run away and move.

3. Negative phototaxis: earthworms have negative phototaxis, especially to escape from strong sunlight, blue light and ultraviolet rays, but they are not afraid of red light and tend to weak light, such as earthworms coming out of their burrows in the wet morning. The toxic effect of sunlight on earthworms is mainly due to the presence of ultraviolet rays in sunlight. Earthworms like quiet environment not only requires low noise, but also can not shake, near bridges, highways, airports is not suitable to build earthworm farms.

4. variable temperature animals: earthworms are variable temperature animals, and their body temperature changes with the change of external environment temperature. Therefore, the dependence of earthworms on the environment is generally more significant than that of constant temperature animals. environmental temperature affects not only the body temperature and activity of earthworms, but also the metabolism, growth, development and reproduction of earthworms. and temperature also has a greater impact on other living conditions, thus indirectly affecting earthworms. Therefore, temperature is one of the most important living conditions for earthworms.