Invasive species

Definition

Species that are introduced to an environment outside their native range and cause harm to the local ecosystem, economy, or human health.

Etymology

From Latin 'invadere', meaning 'to invade' and 'species', meaning 'kind' or 'sort'.

Example

The introduction of the invasive lionfish to the Caribbean has had devastating impacts on native fish populations.

Related Terms

• Nonindigenous species
• Introduced species
• Exotic species

Usage Notes

Invasive species are often characterized by their ability to outcompete native species and spread rapidly. They can have a significant impact on biodiversity, ecosystem function, and human activities.