invasion

An invasive species is a non-native organism that spreads easily and can harm native species and ecosystems. These species are often introduced to new environments through human activities like global commerce. While most introduced species don't survive, some have a competitive advantage and can thrive, disrupting the ecosystem's biodiversity and causing economic damage.12

In biology, invasiveness refers to an organism's ability to penetrate and spread through tissues. This capability, along with virulence (the potential to cause injury), determines how harmful a microorganism can be. Invasive species can outcompete native organisms for resources, prey on them, or act as vectors for diseases, potentially leading to the extinction of native species.342