Invasive species pose a threat when they enter new environments and begin to outcompete native species for resources such as food, shelter, and space. Additionally, invasive species can reduce local biodiversity by preying on and transmitting diseases to native wildlife. The effects of invasive species are particularly noticeable in island ecosystems, as islands often are less resilient to new threats due to reduced species diversity and a higher risk of predation. Moreover, human activity can spread invasive species to areas where they had previously not been, such as ballast water or soil in commercial ships, further facilitating their spread and creating an increased threat to natural ecosystems.