Why are invasive species a problem for ecosystems?
They greatly disrupt existing food webs.
They introduce a new species to the region.
Most ecosystems support only a few different species.
Invasive species rarely survive in new ecosystems.
Option 1: They greatly disrupt existing food webs.
Explanation:
Invasive species: As the name suggests, any organism which is not native to the habitat and disrupts the growth of the existing ecosystem where it invades or is introduced are called invasive species.
Examples of invasive species: Red Lionfish, Green Iguana, Longhorn Beetle.
Characteristics of invasive species:
High tolerance to an adverse environment,
Rapid reproductive rate.
Enhanced adaptability.
Increased dispersal ability.
Invasive species have the ability to cause extinction or threat to the native plants and animals. They can also cause destruction to the natural resources found in the place. Harming economic and ecological growth.
