Lesson 2 Biological invaders who has the information

The growth of zucchini in the waters seriously stifles other life, and the spread of piranhas in our seas, in our country he is an ornamental fish that has been spread out because there are no natural enemies and crazy.

Ecosystems are formed through long-term evolution, and the species in the system have formed a close relationship of interdependence and mutual restraint after hundreds and thousands of years of competition, exclusion, adaptation and mutual benefit. After an alien species is introduced, it may be excluded from the system because it cannot adapt to the new environment, and must be helped by people to survive; It is also possible that because there are no competing or constraining organisms in the new environment, the introduced species may become a real invader, upsetting the balance and altering or destroying the local ecosystem.

1) Being introduced into a non-native area through intentional or unintentional human activity. 2) Self-regeneration capacity is formed in local natural or man-made ecosystems. 3) Causing significant damage or impact to the local ecosystem or geographical structure.

Biological invasion refers to the intentional or unintentional introduction of organisms native to the local area through human activities; A phenomenon in which these organisms can grow and multiply wildly in new ecosystems, altering the original local ecosystems and eventually having a devastating impact on the natural environment and human society. Biological invasions can bring unpredictable catastrophes, which is why they are also called "ecosystem cancer".

Write out the questions, we only have three questions here.

Personal opinion, should be considered interference、

The negative impact of biological invasion is relatively large...

We begin by analyzing the causes of biological invasions. Generally under natural conditions, the probability of biological invasion is relatively small, that is to say, the probability of biological invasion that is thought to be increased is increased, including organisms made in the laboratory, and organisms that are thought to be beneficial or unintentionally brought to another place from one place, and the future of these organisms has basically two situations, one is not adapted to the new environment and slowly disappears, and the second is that it is just very adaptable to the new environment and has no natural enemies and reproduces in large numbers and forms a competitive relationship with other organisms.

Human interference is mainly to control the number of highly competitive organisms, mainly to introduce natural enemies that want to enter them. Of course, there are other ways.

Personally, I don't think that disturbance, biological invasions have a great impact but are temporary, nature has a strong ability to regulate, and invasive organisms will be able to accommodate new biospheres, and the consequences of human interference will be even more impactful.

Square; Biological invaders should be treated with human interference.