invasive species

Harmful foreign organism

An invasive species is a plant, animal, or other organism introduced to an environment where it didn't evolve, causing ecological or economic harm.

Invasive species typically spread aggressively, outcompeting native organisms for resources: Kudzu is an invasive species that smothers native vegetation across the American South.

The term implies damage—not all non-native species qualify, only those that disrupt ecosystems or threaten biodiversity.

examples

kudzu

Aggressive Asian climbing plant

Burmese python · water hyacinth · emerald ash borer · lionfish · wild boar · rabbits · mongoose · snakehead · fire ant · nutria

spread

colonize

Establish control over territory

overrun · disperse · propagate · multiply · establish · naturalize · penetrate · infiltrate · expand · reproduce

impact

biodiversity loss

Reduction in species variety

predation · resource depletion · population decline · environmental harm · crop damage · disease transmission · soil erosion · water quality

management

eradication

Total elimination of something

trapping · biocontrol · monitoring · early detection · quarantine · prevention · containment · restoration · culling · sterilization

Categories
Opposites
origin and belonging

invasive speciesnative species

Organisms originating in a region

indigenous species · endemic species · native flora and fauna · native flora · native fauna

ecological impact

invasive specieskeystone species

Outsized ecological impact organism

mutualist · symbiont · pollinator

conservation status

invasive speciesendangered species

Organisms facing extinction risk

protected species · threatened species · rare species · vulnerable species

Family

invade, species, invasion, invader, invasive, invading, invaded, invades, specie

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated G