Whether biological invasion is a problem of environmental pollution or ecological destruction

Strictly speaking, biological invasion is an ecological problem, and environmental damage is part of its derivative surface.

For example, many cities have introduced some foreign plants to beautify the road, but due to their strong fecundity and competitiveness, they have achieved a dominant position, so that many plants have lost their competitive position and gradually died out, and some insects that depend on them have also disappeared, resulting in the destruction of the entire ecological chain, and the living space of these invasive plants continues to expand, and when it reaches a certain extent, it also forms environmental damage, such as the floating flocculent produced by the seeds of plants, etc.

There is also a more famous water hyacinth, which has a strong resistance to eutrophication of water bodies, and can achieve a dominant position in water bodies with poor water quality, resulting in the death of other algae and aquatic plants, which is an ecological crisis. When its living space expands to a certain extent, the lake surface is covered by it, and the water body lacks oxygen, and then turns black and smelly, which causes environmental problems.

This one belongs to ecology (first-level discipline); Population Ecology (Secondary Discipline).

Biological invasion refers to the phenomenon that a certain organism is naturally introduced from other places or artificially introduced into the wild state and causes certain harm to the local ecosystem. These organisms are called alien species. Alien species are those species, subspecies or below taxa that occur outside their past or present natural ranges and dispersal potential, including all parts of them that are likely to survive or reproduce, gametes or propagules.

Invasive alien species have the characteristics of strong ecological adaptability, strong reproductive ability and strong transmission ability. Invaded ecosystems are characterized by sufficient available resources, lack of natural control mechanisms, and high frequency of human entry. The "alien" of alien species is defined in terms of ecosystems.

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After the invasion of alien pests into the new area suitable for growth, its population will multiply rapidly, and gradually develop into a new local "dominant species", seriously damaging the local ecological security, specifically, the main consequences are as follows: First, the invasion of alien species will seriously damage the diversity of organisms 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 together with the living environment of different levels.

Although the biodiversity of a country or region is endowed by nature, no country has invested a lot of manpower and material resources to maintain the biodiversity of the country. 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.

The invasion of alien species will affect the water and other nutrients of plant soils, as well as the structural stability and genetic diversity of biological communities, thereby destroying the local ecological balance. For example, Mikania, an alien species introduced from Australia and invaded many forest farms on China's Hainan Island and Leizhou Peninsula, is very detrimental to soil and water conservation because this plant can absorb a lot of soil moisture, resulting in extremely dry soil. In addition, Mikania can also secrete chemicals to inhibit the growth of other plants, which once seriously affected the production and development of the entire forest farm.

The invasion of this external biological species will of course seriously damage the local ecosystem.

The impact of alien biological invasion on the ecological environment, exclusive:Increase biodiversity。Alien invasion refers to the process by which alien species enter and reproduce and spread in a new environment.

It has brought many negative impacts on the ecological environment, including:

1.Depriving native species of their habitat

Alien species tend to be more competitive and adaptable, and they will occupy the original living space of local species, making the native species lose their survival base. For example, after the invasion of rabbits, rats and bullfrogs in Australia, the living space of the native animals that used to live there has been greatly reduced, and these native animals are facing an existential crisis.

2.Extinct native species

Alien species can also cause direct harm to native species, leading to their extinction. For example, the African giant snail was introduced to the Americas and the Caribbean after the transport of dates, and as a result, they multiplied and ate large quantities of crops, seriously harming the local agricultural industry and pushing many native plant populations to extinction.

3.Destruction of ecosystems

Alien species can also cause disruption to the balance of ecosystems, thus affecting the stability of the ecosystem as a whole. For example, Asian carp in the United States have been introduced into rivers and lakes in the United States, where they have multiplied and eaten the feed of other fish, seriously harming the local fishing industry and causing great damage to the local ecosystem.

To sum up, the impact of alien biological invasion on the ecological environment is very complex and far-reaching, and we should take active measures to prevent and reduce its occurrence and protect our ecological environment.

Biological contamination generally refers to microorganisms such as bacteria, viruses, fungi, and parasites that exist in the environment and have potential hazards to human health. While it is true that there is a connection between biological pollution and environmental pollution, they have different characteristics and effects.

Environmental pollution mainly refers to the pollution caused by various harmful substances produced by human activities, such as chemical waste, electronic waste, acid rain, radioactive materials, etc. These harmful substances often do not manifest themselves until a period of time or generations, and have varying degrees of impact on the environment and biological redundancy.

In contrast, biological contamination focuses more on the potential harm to human health and the body, which can have a noticeable impact on the body's immune system and internal organs, and can easily lead to various infectious diseases and allergic reactions. In addition, biological pollution also includes hygiene issues such as indoor air quality and drinking water safety, which are more closely related to human life and health.

Therefore, although both environmental pollution and biological pollution involve the destruction of the environment and life, they have different characteristics and effects, and they cannot simply be confused.

1. They often have no natural predators, and their numbers will expand quickly. As a result, the native animals of the same kind have caused an extinction crisis.

2. The extinction or reduction of other native animals directly endangers the local food chain and causes an imbalance in the entire food chain.

Invasive species pose a great threat to the local ecological environment, and after an alien species is introduced, it may become a real invader because there are no competing or restricting organisms in the new environmentBreak the balance, change or destroy the local ecological environmentIf it is out of human control, it is easy to spread and spread under suitable climate, soil, water and propagation conditions, forming a large-scale single-optimal communityDestroying native flora and fauna, endangering the survival of local endangered flora and fauna, and causing loss of biodiversity.

The invasion of alien species is by no means a regional, a country's problem, but a global problem, it brings harm is multifaceted, huge, China has been deeply affected by the invasion of alien species, at present, China has identified 544 species of invasive alien species, of which a large area, serious harm up to more than 100 kinds, causing hundreds of billions of economic losses every year.

In modern times, with the increasingly frequent and close economic and cultural exchanges between countries and regions, and with the increasing number of global environmental instability, an ecological war without gunpowder smoke - "alien species invasion" is quietly starting all over the world, causing ecological disasters.