Linhai TV station!

    The host said, "good morning, audience friends! This is Linhai hotline. We focus on the social hot topics we are most concerned about.

    The content of this issue is, under the epidemic situation, what is the relationship between the virus and wild animals? How should we treat the wild animals around us? This is a problem related to everyone''s health and safety and social ecological security.

    Today, we also invited two very important guests in related fields to answer. One is Fang ye, the head of our Linhai zoo, and the other is Professor Wang Yan, a researcher of Xinghe University. Welcome! "

    The host extended his hand to Fang ye on the sofa, and both nodded in response.

    Because of the epidemic, fewer people go out to play. Everyone stays at home on weekends.

    Either watching mobile phones, playing computers, or watching TV.

    Liu Xueqing''s house.

    Yingying is playing with building blocks on the ground. Grandpa Yingying is sitting on the sofa watching TV and Liu Xueqing is looking at her mobile phone!

    I was discussing with my colleagues when the new crown would pass. When I heard the news, I immediately looked up.

    Put down your cell phone, call Yingying''s father, and focus on looking at the TV.

    This is what she cares about very much!

    The host added: "you can edit text messages through mobile phones, ask questions and interact with our experts on the spot."

    Then, facing Fang ye and Wang Yan, he asked: "recently, everyone has been worried by Xinguan. There are many questions about wild animals, such as whether the crayfish can be eaten, whether the Brazilian turtle can be raised, and the bats in the community. There may be many friends who are frightened by the bats at home or near the community. Can they be killed?"

    Fang Ye was quite helpless when he mentioned this: "recently, the staff of our zoo are really busy. They go to various communities to help us drive away bats. We can feel that we have an extreme fear of bats. If we shout to fight and kill, we must kill them. If we don''t kill them, we don''t rest assured."

    Wang Yan continued: "not only in Linhai, we found that some other big cities have also had a panic about bats recently.

    In fact, whether bats can kill or not is not the most important issue. Which animal is the intermediate host and whether they can eat or not is not an important thing. They are not the core of the problem.

    I think there are several points reflected. First, we really don''t know much about wildlife; second, we may be confused about the emergence of wildlife in cities and the inevitable emergence of wildlife; third, most people, even those who like wildlife very much, can''t raise their understanding of animals to the level of ecosystem.

    In fact, the ecosystem is a whole, which affects the whole body. Some experts put forward the so-called concept of ecological killing, which is not new in history. Killing bats or similar things have appeared on many continents.

    Such as prairie dog mouse! It is a very common prairie animal in North America.

    People know a lot about prairie dogs and mice today. For example, they can speak, make words and have a very rich language system.

    You even give it something you''ve never seen before, such as a mobile phone. When several prairie dogs and mice get together, they can create a word like "mobile phone" and pass on the word "mobile phone" stably in the group.

    But more than 100 years ago, people''s evaluation of it was overwhelming, and there were useless creatures everywhere on the grassland. In fact, people are used to evaluating whether an animal is useful or useless. I think this is an idea rooted in our hearts.

    People think that after killing the prairie dogs and mice, without them eating grass, the grassland may become better and more conducive to grazing, which can improve the yield of livestock.

    In the 1940s, large-scale poisoning of prairie dogs and mice began. With the combined action of poisoning, shooting, watering caves and using dogs, the number of prairie dogs and mice decreased by 98% in many places and disappeared in some places.

    As a result, people were very surprised to find that, in fact, after the prairie dogs and rats ate the grass for the first time, the growth of the grass will become faster, and the newly grown parts, protein, sugar and various nutrients will be more comprehensive. Moreover, where there are prairie dogs and rats, they constantly turn the soil, the species composition of the grass will be richer, but it is a healthier grassland.

    From bison to pronghorn, everyone depends on prairie dogs and mice for survival.

    So since then, people have gradually realized the concept of key species and cornerstone species in the ecosystem, but later, such mistakes continue. "

    Fang Ye nodded and said, "usually you come to our zoo and have been to the plateau animal exhibition area, or you like animals such as Tibetan foxes, rabbits and monkeys. Watching documentaries, you can know that their favorite food is pika! It looks like a mouse, but it has no tail.

    The Pika is equivalent to rice on the plateau. Everyone bullies it when they have nothing to do.

    The fate of pikas is similar to that of prairie dogs and mice. People think that pikas have promoted the desertification of grassland. Large-scale poisoning and killing has led to the death of many Raptors such as common and big birds of prey by eating the poisonous pika carcass.

    Through long-term monitoring, people found that the grassland without pika not only did not get better, but became worse. Because the pika can increase the water permeability and air permeability of the soil. Where there is no pika, the water can not seep down, but will lead to soil erosion.

    The grass grows too high and the pika can''t see its natural enemies, so they like to live in places where the grass is relatively short and sparse. It''s not the desertification they cause. "

    Wang Yan concluded: "every large-scale killing of these cornerstone species often fails, and will lead to the opposite consequences. People whimsically change the ecosystem, and then need to pay many times more power than killing, and then change it back to its original shape.

    There is only one situation that needs to be killed, and that is invasive species. "

    Fang Ye added: "in the natural ecosystem, every biological existence has its own meaning."

    The host said, "well, I remember the wild boar! I broke into the milk tea shop and was caught by your zoo, didn''t I?"

    Fang ye said with a smile, "the milk tea wild boar has been released.

    Indeed, wild boar is often misunderstood as an animal.

    In recent years, there have been a lot of news about wild boars entering the city. Watching the news gives people the impression that wild boars have been very rampant, and they are a kind of harmful animals that spoil crops and may hurt people. We need to eliminate them.

    In fact, wild boars play a very important role in the forest. They like to arch for food. In this process, dead leaves, air and soil mix together and decompose into humus faster, and seeds can sprout better, which is conducive to the succession of the forest.

    When it snows in winter, it can also dig away the snow so that small mammals such as birds and squirrels can look for food. "