Question

What happens when alien species are introduced?

Answer 1

Alien species:

1. These are the plants, pathogens, and animals which are non-native to an ecosystem.
2. The alien species when introduced to an ecosystem can have major effects on the environment, human health, and economy as these species may lack their natural predators and can carry diseases, alter the food chains, and can even change the ecosystems by altering soil composition or creating such habitats that encourage wildfires.
3. Seaweeds and various forms of reed grasses are examples of alien species.