Along the Pacific Coast, temperate coniferous forests have mild winters and heavy rainfall or inland mountainous areas with mild climates. As of 2015, the Council is working with 161 (90 percent) of landowners along 50 miles of the river. Therefore, every effort should be made to prevent first-time introductions of invasive species from becoming established in Oregon. In fact, some species are more closely related to species from those distant places rather than . rivers subject to pollution, warming climates and invasive species," Olden said. Since its inception in 2003, the Northern Rocky Mountain IPMT program emphasizes the systematic, long-term management and control of invasive plant species. There are now so many zebra mussels in the Great Lakes that they have threatened native species.Introduced SpeciesSome species are brought to a new area on purpose. And just as coronavirus testing has been insufficient, so have inspections of incoming shipments for insects or diseases that could attack trees. Inform the public about the impacts and costs of invasions. [CDATA[/* >