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PRIORITY INVASIVES
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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 2022 and developed new or updated rankings for 146 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.
2023 Survey Priorities include early detection and approaching region species in addition to ‘data gap’ species. WNY PRISM has selected 5 species on which to focus surveys in an effort to improve presence and distribution data within iMapInvasives.
Early Detection Priorities
| 1. Ampelopsis brevipendunculata | Porcelain Berry |
| 2. Brachypodium sylvaticum | Slender False Brome |
| 3. Cytisus scoparius | Scotch Broom |
| 4. Eichhornia crassipes | Water Hyacinth |
| 5. Galega officinalis | Goatsrue |
| 6. Lycorma delicatula | Spotted Lanternfly |
| 7. Microstegium vimineum | Japanese Stiltgrass |
| 8. Persicaria perfoliata | Mile-a-Minute Vine |
| 9. Pistia stratiotes | Water Lettuce |
| 10. Procambarus clarkii | Red Swamp Crayfish |
Approaching Region Priorities
| 1. Actinidia arguta | Hardy Kiwi |
| 2. Aldrovanda vesiculosa | Waterwheel |
| 3. Impatiens glandulifera | Himalayan Balsam |
| 4. Myriophyllum aquaticum | Parrot Feather |
| 5. Ludwigia peploides | Primrose-willow |
| 6. Oplismenus undulatifolius | Wavyleaf Basket Grass |
| 7. Pueraria montana | Kudzu |
Data Gap Species Priorities
| 1. Adelges tsugae | Hemlock Woolly Adelgid |
| 2. Ailanthus altissima | Tree of Heaven |
| 3. Euonymus alatus | Burning Bush |
| 4. Ficaria verna | Lesser Celandine |
| 5. Pyrus calleryana | Callery (Bradford) Pear |