invázív

Invázív is a term used to describe species that have been introduced to a new environment and cause harm to the native ecosystem. These species are often referred to as invasive alien species. They can outcompete native plants and animals for resources such as food, water, and shelter. This can lead to a decline in native populations and, in some cases, extinction.

Invasive species can have a variety of negative impacts on the environment. They can disrupt food webs, alter habitats, and introduce diseases. For example, the introduction of the zebra mussel to the Great Lakes has had a significant impact on the native fish populations. The mussels filter large amounts of water, removing plankton that are essential for the survival of many fish species.

The introduction of invasive species can occur through various means, including human activities like trade and travel. Once established, they can be difficult and costly to control or eradicate. Prevention is often the most effective strategy for managing invasive species. This includes measures such as inspecting goods and vehicles for pests and diseases, and educating the public about the risks associated with introducing non-native species.