Invaders

Invaders are organisms—such as plants, animals, fungi, or microorganisms—that are introduced into an environment where they are not naturally found. When they establish and spread, they can disrupt existing ecosystems by outcompeting native species for resources, modifying habitats, or introducing new diseases. This can lead to reduced biodiversity and altered ecological balances. Invaders often arrive through human activities like trade, travel, or agriculture, and their impact can sometimes be severe, making management and prevention important for preserving ecological health.