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Invasive Species Prioritization
WNY PRISM invasive species priority lists were developed by our Terrestrial and Aquatic Working Groups. Over the years the prioritization process has changed, but the involvement of partners in the effort remains the same.
Working Groups communicate through in-person meetings, conference calls/webinars and email. If you are interested in being part of our Working Groups, please contact Andrea Locke, WNY PRISM Coordinator at lockeas@buffalostate.edu.
Invasive Species Prioritization Tiers
The New York State Invasive Species Program has developed a tiered ranking system for invasive species, to provide management and prioritization assistance. WNY PRISM completed a review of species rankings in 2023 and developed new or updated rankings for 156 species (available here). WNY PRISM will continue to work through the process of updating existing tier rankings and ranking additional species as new information becomes available.
NYS Invasive Species Tiered Ranking Chart
In addition to tier rankings, WNY PRISM maintains approaching region/watchlist (Tier 1) and early detection (Tier 2) priority species lists, to further assist with prioritizing management efforts.
2024 Survey Priorities include early detection and approaching region species in addition to ‘data gap’ species. WNY PRISM has selected four species on which to focus surveys in an effort to improve presence and distribution data within iMapInvasives.
Early Detection Priorities
| 1. Ampelopsis glandulosa | Porcelain Berry |
| 2. Brachypodium sylvaticum | Slender False Brome |
| 3. Cytisus scoparius | Scotch Broom |
| 4. Oshuna crassipes | Water Hyacinth |
| 5. Lycorma delicatula | Spotted Lanternfly |
| 6. Microstegium vimineum | Japanese Stiltgrass |
| 7. Persicaria perfoliata | Mile-a-Minute Vine |
| 8. Phellodendron amurense | Amur Corktree |
| 9. Pistia stratiotes | Water Lettuce |
| 10. Procambarus clarkii | Red Swamp Crayfish |
Approaching Region Priorities
| 1. Actinidia arguta | Hardy Kiwi |
| 2. Impatiens glandulifera | Himalayan Balsam |
| 3. Myriophyllum aquaticum | Parrot Feather |
| 4. Ludwigia peploides | Primrose-willow |
| 5. Oplismenus undulatifolius | Wavyleaf Basket Grass |
Data Gap Species Priorities
| 1. Anthriscus sylvetris | Wild Chervil |
| 2. Aproceros leucopoda | Elm Zigzag Sawfly |
| 3. Nymphoides peltata | Yellow Floating Heart |
| 4. Rhodotypos scandens | Black Jetbead |