What is an invasive species?

What is an Invasive Species?

DEFINITIONS

  • Native: A species that occurs naturally in an ecosystem. No human influence.
  • Non-native: Not originally from the area it is found growing but does not cause harm to the ecosystem.
  • Invasive: A species that is non-native to an ecosystem and is likely to cause economic or environmental harm or harm to human health.

LINKS TO INFORMATION ON INVASIVE SPECIES

Recent Invasions

Taking Over

All links from this point on connect to the Vital Signs site. When you click on a link, you will download a document (pdf) of information on the topic you chose.

Freshwater Invasive Plant Species

Other Fresh Water

Coastal Invasive Species

Upland Invasive Species -Plants

Bamboo grass, Microstegium vimineum
Beach rose, Rosa rugosa
Bittersweet nightshade, Solanum dulcamara
Black swallowwort, Cynanchum louiseae
Burning bush, Euonymus alatus
Common buckthorn, Rhamnus cathartica
Common reed, Phragmites australis
Garlic mustard, Alliaria petiolata
Giant hogweed, Heracleum mantegazzianum
Giant knotweed, Fallopia sachalinensis
Glossy buckthorn, Frangula alnus
Japanese barberry, Berberis thunbergii
Japanese knotweed, Fallopia japonica
Lupine, Lupinus polyphyllus
Mile-a-minute weed, Polygonun perfoliatum
Morrow’s honeysuckle, Lonicera morrowii
Multiflora rose, Rosa multiflora
Oriental bittersweet, Celastrus orbiculatus
Porcelain-berry, Ampelopsis brevipedunculat
Purple loosestrife, Lythrum salicaria

Invertebrates (bugs)

Asian longhorned beetle, Anoplophora glabripennis
Galerucella beetle, Galerucella
Hemlock woolly adelgid, Adelges tsugae
Japanese beetle, Popillia japonica

NON-NATIVE TO MAINE- Gypsy moth, Lymantria dispar

OTHER RESOURCES

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