Name one invasive species that Colorado Parks and Wildlife actively manages.

The Eurasian watermilfoil is an invasive aquatic plant that Colorado Parks and Wildlife actively manages due to its detrimental impact on local ecosystems. This species can rapidly outcompete native water plants, leading to significant changes in aquatic habitats. Its dense growth can block sunlight from reaching submerged vegetation, disrupt fish populations, and negatively affect water quality by altering nutrient dynamics. Management efforts often include mechanical harvesting, chemical treatments, and public education to prevent its spread and protect the integrity of Colorado’s waterways.

The correct choice emphasizes the proactive measures taken against invasive species that can have profound effects on the state's biodiversity and habitat health.