The Luckiamute mainstem is a Conservation Opportunity Area in both the Willamette Valley and Coast Range ecoregions. For example, in 1949, five cats were brought to Marion Island, a part of South Africa in the southern Indian Ocean. The lush forests in the Quinault, Queets, Hoh, and Bogachiel valleys are some of the most spectacular examples of primeval temperate rain forest in the lower 48 states. Invasive non-native species can have many negative consequences throughout Oregon. Photo Credit: ODFW, data provided by iMapInvasives. Preventing new species introductions is a top priority and the most cost-effective approach to protecting native species, ecosystems, and productivity of the land from invasive species. Water hyacinth prevented sunlight from reaching underwater. Find informationabout invasive animals here. The health of an ecosystem often improves. Share sensitive information only Many invasive species, especially those that are aquatic (e.g, invasive tunicates) can be difficult to detect before they pose a large threat. Which of the following is NOT an example of overexploitation? Do not collect invasive plants, their seeds, or reproductive bodies. /*-->