What is an invasive species?

For a species (plant, animal or microbe) to be considered invasive, it must be non-native to the region and capable of causing harm to the environment, economy, or human health.

Why can a species become invasive?

When an organism is transported (whether accidentally, intentionally or naturally) outside of its native range, it can experience less predation and disease pressure.

Where do invasive species occur?

Disturbed areas such as right-of-ways, croplands and developments create opportunities for non-native species to rapidly populate areas without competition from native organisms.

How do invasive species get here?

Several species from Northern Europe began arriving into North America with the first settlers in the mid-1500s. Worldwide trade, travel and immigration create pathways for intentional and accidental introductions.

Why should I care?

Invasive species and habitat destruction are the leading causes of animal/plant endangerment and extinction. The cost of invasive species control can exceed land values in many areas.





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