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Great Lakes Center, SAMC 319
SUNY Buffalo State
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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.

2023 Survey Priorities

Early Detection Priorities

1. Ampelopsis brevipendunculataPorcelain Berry
2. Brachypodium sylvaticumSlender False Brome
3. Cytisus scopariusScotch Broom
4. Eichhornia crassipesWater Hyacinth
5. Galega officinalisGoatsrue
6. Lycorma delicatulaSpotted Lanternfly
7. Microstegium vimineumJapanese Stiltgrass
8. Persicaria perfoliataMile-a-Minute Vine
9. Pistia stratiotesWater Lettuce
10. Procambarus clarkiiRed Swamp Crayfish

Approaching Region Priorities

1. Actinidia arguta Hardy Kiwi
2. Aldrovanda vesiculosaWaterwheel
3. Impatiens glanduliferaHimalayan Balsam
4. Myriophyllum aquaticumParrot Feather
5. Ludwigia peploidesPrimrose-willow
6. Oplismenus undulatifoliusWavyleaf Basket Grass
7. Pueraria montanaKudzu

Data Gap Species Priorities

1. Adelges tsugaeHemlock Woolly Adelgid
2. Ailanthus altissimaTree of Heaven
3. Euonymus alatusBurning Bush
4. Ficaria vernaLesser Celandine
5. Pyrus calleryanaCallery (Bradford) Pear