What is an invasive species?

An invasive species is defined as a non-native species that spreads and causes harm to local ecosystems. These species often thrive in new environments due to a lack of natural predators or competitors that would otherwise keep their populations in check. As they spread, they can disrupt local biodiversity, outcompete native species for resources, and alter habitats, leading to significant ecological imbalance.

In contrast, beneficial species that contribute positively to the local environment do not fit the definition of invasive species. Additionally, the inability to adapt to new environments does not necessarily make a species invasive; rather, it may lead to its decline instead. Finally, a species that is native to a region cannot be classified as invasive, as it has evolved alongside the local ecosystem and does not introduce the same level of disruption as non-native species. Understanding the characteristics of invasive species is crucial for managing biodiversity and protecting ecosystems.