Invasive species
Invasive Species
Invasive species (/ɪnˈveɪsɪv ˈspiːʃiːz/), also known as invasive exotics or simply exotics, is a term applied to species that move into an ecosystem and cause harm. They can harm the environment, the economy, or even human health. Species that grow and reproduce quickly, and spread aggressively, with potential to cause harm, are given the label "invasive."
Etymology
The term "invasive" derives from the Latin word "invadere," meaning to attack or seize, while "species" comes from the Latin word "species," meaning a particular sort or kind. The term "exotic" is derived from the Greek word "exōtikos," meaning foreign.
Related Terms
- Ecosystem: A community of living organisms and their interactions with their abiotic environment.
- Biodiversity: The variety of life in the world or in a particular habitat or ecosystem.
- Native Species: Species that have naturally evolved in an area.
- Endemic Species: Species that are native to a certain region and can be found nowhere else.
- Alien Species: Species introduced outside their natural past or present distribution.
- Biological Invasion: The process by which species spread to new areas.
Impact of Invasive Species
Invasive species can have a dramatic effect on the environment where they invade. They can out-compete native species for resources, change habitats, and disrupt ecosystems. The economic costs can be significant, as invasive species can damage agriculture, forestry, and fisheries. Invasive species can also pose a threat to human health, as some carry diseases that can be transmitted to humans.
Control and Management
Control and management of invasive species can be challenging. It often involves a combination of physical removal, use of pesticides, and biological control methods. Prevention is the most effective method, which includes monitoring and early detection.
See Also
External links
- Medical encyclopedia article on Invasive species
- Wikipedia's article - Invasive species
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