Across
- 4. native only to a small drainage east of Glacier Park, this fish has a long snout, many sharp teeth, and preys upon young of native trout species
- 6. originally from the Caspian Sea, this aquatic species arrive in the United States in the ballast of ships and can attach to rocks, structures, and equipment in water bodies becoming hard to remove
- 8. beetle that eats the stems, leaves, and flowers of St. Johnswort
- 12. plant designated by federal, state, or local government that can cause harm to agriculture, public health, wildlife, recreation, or property
- 14. non-native plants that invade ecosystems and replace native plants
- 15. organism specifically found only in a certain locality or region
- 16. weevil that helps control spotted knapweed and reproduces in the root system of the plant
- 17. perennial forb with pinkish-purple flowers, a taproot, and spotted bracts surrounding the flower heads
Down
- 1. species that is found in a certain ecosystem due to natural processes
- 2. plant native to Eurasia that has yellowish flowers, a long taproot, and produces thousands of seeds that can be ejected over long distances
- 3. chemicals that are used to control undesired vegetation such as noxious weeds
- 5. strategy to help eliminate invasive species adopted by federal agencies that involves detecting invasive populations and treating them to elimination
- 7. aquatic invasive species that live in water and cause harm to native species
- 9. deliberate use of living organisms to limit the abundance of an invasive plant
- 10. a state-listed noxious weed that has branched wiry stems, small yellow flowers, and can reproduce vegetatively from broken root fragments and other plant parts
- 11. strategy used to control noxious weeds through various methods used in combination, including chemical treatment, mechanical methods such as hand-pulling, and biocontrol treatment
- 13. species living in areas where they don't naturally exist