Why are scientists concerned about the introduction of invasive species?

Scientists are concerned about the introduction of invasive species because these organisms can disrupt local ecosystems, outcompeting native species for resources, altering habitats, and introducing diseases. Invasive species often lack natural predators in their new environments, allowing them to proliferate unchecked. This can lead to a decline in biodiversity, negatively impacting ecosystem services and the economy. Additionally, managing and controlling invasive species can be costly and complex.