Non-indigenous species

{
  "id": "MLC-T-ENV-018900",
  "term": "Non-indigenous species",
  "field": "Environment",
  "term_source": "Non-Indigenous Species",
  "definition": "1. Nonnative plant, animal, or microbe species introduced into a region that then overwhelms, crowds out, or disrupts relationships among native species, degrades habitats, and contaminates the gene pools of indigenous species. Examples include the wooly adelgid (an insect damaging hemlock trees in the Smoky Mountains), kudzu, and fire ants in southern U.S., and more than 160 known aquatic species in the Great Lakes.\n\n2. A species that has been introduced by human action, either intentionally or by accident, into an area outside its natural geographical range; also called an alien, exotic, introduced, or non-native species. Certain non-indigenous species are considered “invasive.”\n\n3. Species that has been intentionally or inadvertently brought into a region or area. Also called an exotic or non-native species.\n\n4. A species that has been introduced by human action, either intentionally or by accident, into an area outside its natural geographical range; also called an alien, exotic, introduced, or non-native species. Certain non-indigenous species are considered \"invasive.\" (See invasive species.)",
  "abbreviation": "NIS",
  "subject": "Biological substances",
  "references": [
    "ReVA Program Glossary",
    "EPA Report on the Environment Glossary at http://www.epa.gov/ncea/roe/glossary.htm",
    "Chesapeake Bay Glossary",
    "Report on the Environment (ROE) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/non-indigenous-species/"
}