EVERYDAY SCIENCE

Detailed explanation-1: -Some introduced species may become invasive when they possess a built-in competitive advantage over indigenous species in invaded areas. Under these circumstances, new arrivals can establish breeding populations and thrive, especially if the ecosystem lacks natural predators capable of keeping them in check.

Detailed explanation-2: -Invasive alien species have devastating impacts on native biota, causing decline or even extinctions of native species, and negatively affecting ecosystems. Invasive alien species are animals, plants, fungi and microorganisms entered and established in the environment from outside of their natural habitat.

Detailed explanation-3: -The direct threats of invasive species include preying on native species, outcompeting native species for food or other resources, causing or carrying disease, and preventing native species from reproducing or killing a native species’ young. There are indirect threats of invasive species as well.

Detailed explanation-4: -An invasive floating plant known as a water hyacinth can be found in water bodies all over the world. These invasive species seriously damage a variety of ecosystem lifeforms by preventing sunlight from entering and oxygen levels from rising in water systems.

Detailed explanation-5: -In a community, one species, known as the predator, predates on another species, known as the prey species. The invasive species that has been introduced in the community can predate on the local predator of the community. This will result in reduced predation on some native species.