Invasive Species Management
What is an invasive species?
Invasive Species are any organizsm that is not native to an ecosystem and cause harm to its environment. Invasive plants and animals typically outcompete native species by spreading aggressivly, reproducing quickly and draining an area of its natural resources like food and sunlight. Long Island is home to many types of plants and animals all competing for food and space to grow. Different species are classified into types depending on their impact on the environment.
Native Species are species that once established, thrive in the environment they are naturally adapted to.
Invasive Species are capable of rapid spread into relativly undisturbed natural communities. Once established they begin outcompeting native plants, damaging soil and causing adverse ecological impacts.
Invasive Plant Management Resources and Databases
Do you live in Nassau County and are interested in helping fight against invasives? Consider downloading the iMapInvasives app! This app allows you to take a picture of a plant or animal and identify that species instantly. You are directly helping scientists and environmental professionals by collecting data with iMapInvasives. The data you collect is then used to plan projects and manage invasive species throughout New York State.
How can you help?
Educating others
Learn more and educate others about the dangers of Invasive Species. Public awareness and education about invasive species is critical to preserving the health of our local plant and animal communities.
Collecting Data
Collect Data using tools like iMapInvasives, iNaturalist to identify local plants.
Volunteer
Volunteer with organizations like LIISMA, Save the Great South Bay, The Nature Conservancy and NYS Parks to help eliminate the threat of invasive species in your local parks and preserves.
Register to Volunteer here!
Southern Pine Beetle
This tiny but powerful insect has the potential to devistate many of Long Islands Pine trees. In New York, Pitch Pines (Long Island native) have been targeted more than any other species. Southern Pine Beetle has the potential to quickly spread throughout Long Island without proper management.
Common Nassau County Invasives
- Japanese barberry Berberis thunbergii
- Mile-a-Minute Persicaria perfoliata
- Multiflora Rose Rosa multiflora
- Autumn Olive Elaeaganus umbellata Thunb
- Canada Thistle Cirsium arvense
- English Ivy Hedera spp.
- Japanese Stiltgrass Microstegium vimineum
- Garlic Mustard Alliaria petiolata
- Japanese Honeysuckle Lonicera japonica Thunb.
- Oriental Bittersweet Celastrus orbicultas Thunb.
- Black Swallow-wort Cynanchum nigrum
- Porcelain Berry Ampelopsis brevipedunculata
Example Species: Mugwort (Artemesia vulgaris) is an invasive perennial that is widespread throughout North America, though it is most common in the eastern United States and Canada. It commonly grows in nurseries, turfgrass, vineyards, waste areas, forest edges, and roadsides. Mugwort spreads aggressively through an extensive rhizome system and will readily form large, mono-specific stands. Mugwort is native to Europe and eastern Asia, where it has historically been used as a medicinal herb.
Mugwort in the early spring
Mugwort at the end of its growth cycle
Invasive Plant Facts
- Most invasive plant and animal species come from areas around the globe with similar climates to New York that are well adapted and ready to spread quickly. This is why most invasives come from areas like Asia, Canada and Europe. Invasive species come from different areas all over the globe.
- Birds and other wildlife carry seeds from invasive plants and spread them in their environment, even if you are not close to a forest keeping invasive plants can be harmful for your local environment. Many of the invasive plants that have taken over todays forests were first introduced as ornamental species to be used home gardens and landscaping.
- Wildlife will eat the food provided by some invasive species after their native food sources have been used up, however it does not provide the proper nutrition causing some birds to not have enough energy to migrate.
Example Species: Norway Maple (Acer platanoides) was introduced to America as an ornamental plant, Norway Maple are prolific seed producers and as individual seeds escape cultivation the species now threatens forests and forest edges. Norway Maple releases a unique milky white sap when the leaf stalk is broken
