What major ecological disasters have occurred in the United States caused by species invasion?

The United States is the country that accepts the most immigrants in the world. In fact, not only people, but also animals like to immigrate to America. However, what they bring is not wisdom and knowledge, but killing and injury, which makes the American people have a headache. At present, the aggressive and poisonous Asian bumblebee is invading the United States, and local residents are extremely worried and afraid of it. It's called. Kill bumblebee? And try to destroy them completely before they flood. So, what other destructive species invaded the United States, causing ecological disasters?

Asian bumblebee

Asian bumblebee is the largest wasp in the world, which can grow to 5 cm long. The longest recorded is over 6 cm, with a wingspan of 9.35 cm. The biggest harm of bumblebees is to attack the hive and feed on bees. A few bumblebees can capture a hive, biting off the heads of 40 bees every minute, and the dead bees in front of the hive often pile up like mountains. Asian bumblebees are also extremely lethal to people, and can even pierce the anti-bee suit, just like hot metal piercing the body, which is very painful. More than 50 people in Japan are stung to death by bumblebees every year. At present, Asian bumblebees have appeared in Washington state, and scientists have launched a comprehensive hunt for them, hoping to subdue them within two years, otherwise they may never be stopped.

Asian carp

It is a well-known fact that Asian carp invaded the United States, which brought huge ecological disasters to the United States and led to the extinction of some species. Asian carp was introduced to the United States from China in 1970s, hoping to remove algae, weeds and parasites from fishing grounds. Asian carp really did not live up to its mission, and soon completed this glorious and arduous task. Then what? Then they took advantage of the flood to escape. Led by a super-fertile female fish that can lay 5 million eggs at a time, they quickly occupied many rivers in the United States, killing other local fish, mussels and snails, and some species were even on the verge of extinction. Americans are worried about this and spend a lot of money trying to destroy them. However, what is done is done, and the situation may be difficult to change.

Burmese python

Burmese python is one of the largest pythons in the world, with a body length of 7 meters and a weight of 9 1 kg. More than 20 years ago, some people in Florida kept Burmese pythons as pets. I didn't expect these guys to grow bigger and bigger, and the longer they grow, the more scary they are. Some people don't know what to do with them, so they put them back into the wild, which is out of control. Burmese pythons have amazing fecundity, which soon caused a huge ecological disaster in the Everglades of Florida. They struggled with the local American alligator, which led to human intervention and soon captured as many as 230. Burmese pythons also prey on local endangered birds and other reptiles, taking away the food of carnivores such as jaguars and bobcats, making the fragile ecosystem worse. According to the data of the US Geological Survey, Burmese pythons may invade the inland areas of the United States13, and there is no chance of eradication. Ironically, the world's largest Burmese python appeared in the United States, weighing 183 kg and 8.2 meters long.

African bee

This is also a kind of bee called killer bees. You can tell by the name that it has something to do with Africa. This is because of the inadaptability to the tropical climate after the introduction of European bees in Brazil in the 1950s, the imported East African bees tried to cross with European bees to adapt to the climate in Brazil. Warwick from the University of S? o Paulo? Esteban? Knowing that East African bees are fierce, Dr. Kerr installed fences at the entrance and exit of the hive to prevent the queen bee from fleeing and causing disaster. However, unsuspecting guards dismantled the fence over the weekend, causing 25 groups of East African bees to escape into the nearby jungle and spread throughout the United States. Although it has been crossed with local bees for several generations, the bees in East Africa remain vicious and often sting people and animals, so it is called killer bees. But the name is actually a bit exaggerated. Hybrid East African bees actually don't hurt many people, but they are exaggerated in the film media. This kind of bee is now called Africanized Bee.

Wild domestic pig

Listen to the name and you will know what is going on. This is a domestic pig that has been domesticated and returned to the wild for various reasons. These pigs were first introduced from Europe in the16th century, and a batch was introduced from Russia for hunting in the 20th century. These wild domestic pigs have caused great losses to American agriculture and threatened human life. Due to the lack of natural enemies, these? Wild boar? They are opportunistic omnivores, 85% to 90% of which are plant foods, while others are small animals such as toads, turtles, turkeys, reptiles and birds' eggs, which have caused great damage to the whole food chain and made other local species who feed on these animals and plants hungry and dare to speak. This has become an increasingly serious problem of species invasion in the United States and Canada.

Of course, not only the United States, but also the whole world is facing the huge problem of species invasion. This is because of the increase of human activities and the convenience of transportation, more and more animals and plants travel across the ocean and live in places that were previously inaccessible. Carelessness may lead to great disasters for local species. Of course, the faster the development of human civilization, the smaller the earth will become, the greater the probability of species migration, and the faster it will be. The so-called species invasion is likely to become a false proposition in the future, because the redistribution of all species in the world is likely to be inevitable, depending on who has stronger adaptability, who can seize more niches.