What are invasive species and why are they a concern?

Invasive species are defined as non-native organisms that are introduced to a new environment and have the potential to disrupt local ecosystems. They can outcompete native species for resources such as food and habitat, often leading to a decline in biodiversity. This disruption can result in significant ecological consequences, including changes in habitat structure, alteration of nutrient cycling, and the introduction of diseases that can adversely affect native flora and fauna.

These species pose a concern because they can establish themselves in the new environment, often proliferating quickly due to the lack of natural predators or controls that they faced in their native habitats. The economic impacts can also be substantial, as invasive species can negatively affect agriculture, fisheries, and forestry, leading to increased management costs and loss of revenue. Understanding the characteristics and impacts of invasive species is crucial for protecting and preserving local ecosystems and biodiversity.