What is an Invasive Species?A invasive species is any species that is nonnative to the ecosystem under consideration, and whose introduction causes or is likely to cause economic or environmental harm, or harm to human health, with the harm significantly outweighing any benefits.
How do Invasive Species Spread?
Invasive species can spread in a variety of ways, some of them are natural, but many are human assisted. Invasive species seeds and other materials can get on your gear and move from place to place!
Some other ways invasive can spread are:
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What are the impacts of Invasive Species?Invasive species affect nearly every aspect of our world and represent one of the greatest known threats to the biodiversity of New York State. Their presence causes or contributes to:
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The Invasion Curve and Tier List Defined
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The Invasion Curve demonstrates that prevention is the most efficient and cost-effective method of controlling invasive species. As invasive species becomes more established over time, the effort and associated costs of addressing infestations increases significantly. The PRISM has delineated populations into a Tier System that follows the invasion curve.
Tier list species are also determined using the NYS regulated/prohibited lists here. The New York State Natural Heritage Program has a comprehensive Statewide Tier List that shows the NYS regulatory status and the NYS Invasiveness Rankings. To view that page click here. |
USDA Forest Service 2005 Invasive Plant Environmental Impact Statement
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Find what tier 2 species may
be hiding in your area!
Hosted by Cornell Cooperative Extension. Capital Region PRISM
