What defines an invasive species?

An invasive species is defined as a non-native species that spreads rapidly in a new environment, often causing harm to the local ecosystem, economy, or human health. This rapid expansion can be attributed to a lack of natural predators, diseases, or competitors in the new habitat, allowing the invasive species to thrive and disrupt established ecosystems.

Invasive species can outcompete native species for resources such as food, water, and space, leading to a decline in biodiversity. They may also introduce new diseases or alter habitats in ways that are detrimental to native flora and fauna. This characteristic of being both non-native and rapidly spreading is fundamental to understanding the impact of invasive species on ecological balance.