Chinese organisms that have invaded the United States, which states in the United States have seriou

According to the International Union for Conservation of Nature (IUCN), an alien species is a population established in natural and semi-natural ecosystems and habitats, and when it alters and endangers native biodiversity, it is an invasive alien species, and the harm it causes is an alien biological invasion. The invasion of alien species mainly harms in several aspects: one is to cause a decline in agricultural and forestry products, output value and quality, and increase costs; second, it has an impact on biodiversity, especially encroaching on the living space of native species, resulting in the death and endangerment of native species; The third is the impact on human and animal health [1].

After alien species invade new areas suitable for growth, their populations will multiply rapidly and gradually become new "dominant species" in the local area, seriously damaging the local ecological security. Specifically, the consequences are mainly to severely damage biological diversity and accelerate the extinction of species. Biological diversity is a complex system that includes all plants, animals, microbial species and their genetic information and living environment.

Although the biodiversity of a country or region is endowed by nature, no country should invest a lot of manpower and material resources to maintain its own biological diversity. However, the invasion of alien species is the number one enemy that threatens biodiversity, after the invasive species are introduced into other places, due to the lack of natural natural enemies and other constraints that can restrict their reproduction in their new environment, the consequence is rapid spread, a large number of expansion, the formation of dominant populations, and competition with local species for limited food resources and space resources, directly leading to the degradation of local species, or even extinction.

As we all know, almost all biological invasions in human history are caused by human beings, including intentional introduction and accidental introduction, but the final result is that the introduction of alien species poses a threat to the survival of local species, and then affects the stability of local ecosystems. Although many countries have long been aware of the severity of biological invasions, many species do not show signs of invasion in the early stages and do not multiply at a rapid rate until they have established themselves in a new environment. The United States is a famous immigration country in the world, and in the process of immigrating to this country from other countries, people will inadvertently bring alien species into the United States.

Invasive non-introduced organisms can be said to be completely accidental, but the invasive invasions of introduced organisms are also unexpected by Americans, whose original intention is to increase the diversity and stability of local organisms, but in the end the opposite result has occurred. According to the latest scientific report released by Florida, a state with the highest number of biological invasions in the United States, the population of a primate called "rhesus macaque" is now difficult to control, which means that they are beginning to invade.

It is understood that the state of Florida in the United States officially introduced rhesus monkeys in the thirties of the last century, in fact, this introduction is not an official act, but the behavior of a private ship owner. Due to their clever nature and quick movements, boat owners use rhesus monkeys to attract tourists. Unexpectedly, rhesus macaques escaped into the wild and began to reproduce rapidly, expanding their populations in a relatively short period of time.

Later, rhesus macaques gradually showed a threat to the local species, not only robbing the local primates of food, but also attacking them, causing some damage to Florida's wild ecosystem.

It is worth noting that <> was not the official Florida snail that first introduced the African giant snail, but a young boy who returned to the United States from Africa. He put two giant African snails in his suitcase and took them aboard the ship, and the creature sailed across the ocean to North America. Most of these private introductions of alien organisms occurred in the last century, when many countries did not control the introduced species so strictly, thus giving many alien species the opportunity to invade.

At present, many countries have set up entry checks, in addition to eliminating some unstable risk factors, but also for the purpose of preventing and controlling alien species. For invasive species, it is better to detect and treat them as early as possible, and it is best to use biological control.