NEET BIOLOGY

Detailed explanation-1: -invasive species, also called introduced species, alien species, or exotic species, any nonnative species that significantly modifies or disrupts the ecosystems it colonizes. Such species may arrive in new areas through natural migration, but they are often introduced by the activities of other species.

Detailed explanation-2: -Invasive species are animals or plants from another region of the world that don’t belong in their new environment. They can be introduced to an area by ship ballast water, accidental release, and most often, by people.

Detailed explanation-3: -It is often thought that the terms ‘invasive’ and ‘non-native’ can be used interchangeably, but this is not always true. For a plant or animal to be invasive, it must do harm. Simply being non-native is not cause for concern. The National Park Service actively manages those non-native species that do harm.

Detailed explanation-4: -An alien or non-native species is one that has been intentionally or accidentally transported and released into an environment outside of its historic or resident geographical range or habitat. Such species are described as ‘invasive’ if they are ecologically and/or economically harmful.

Detailed explanation-5: -Native: a species that originated and developed in its surrounding habitat and has adapted to living in that particular environment. (It can become aggressive, similar to an invasive species.) Invasive: a species of plant or animal that outcompetes other species, causing damage to an ecosystem.