Why are invasive species a concern in ecosystems?

Invasive species are a significant concern in ecosystems primarily because they can lead to the extinction of native species. This occurs when invasive species outcompete, prey on, or disrupt the habitat of native organisms, thereby altering the natural balance of the ecological community. Invasive species often thrive in new environments due to a lack of natural predators, allowing them to proliferate rapidly and dominate resources such as food, light, and space.

Their introduction can lead to decreases in biodiversity as native species struggle to survive under these new competitive pressures. Loss of biodiversity is detrimental to ecosystem resilience, as diverse ecosystems are typically more stable and better equipped to handle environmental changes. Invasive species can also introduce diseases that native species are not adapted to combat, further increasing the risk of extinction.

Understanding the impact of invasive species on native ecosystems is crucial for conservation efforts and the management of biodiversity. This is why the statement regarding the potential for invasive species to cause the extinction of native species captures the essence of the ecological threat they pose.