Invasive Species - GCSE Biology Definition

Invasive species are plants, animals, or other organisms that are not originally from a particular area and have been introduced there, often by humans. Once in a new environment, they can spread quickly and cause harm to the local ecosystems. This can affect native species by competing for food and space, preying on them, or bringing diseases. Invasive species can disrupt the balance of an ecosystem, leading to negative effects on biodiversity, agriculture, and the local economy. Efforts are often needed to control their spread and protect native habitats.