Invaders Glossary of Terms

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Native species - One that evolved in a particular region or that evolved nearby and migrated to the region without help from humans

natural resource - Any aspect of the environment that species depend on for their survival. People depend on natural resources such as land, soil, energy and fresh water.

Naturalized species - A non-native species that is reproducing in a new region without help (for example, irrigation) from humans.

NAWMA - (North American Weed Management Association) - The mission of NAWMA is to provide education, regulatory direction, professional improvement, and environmental awareness to preserve and protect our natural resources from the degrading impacts of exotic, invasive noxious weeds.

Non-native species - A species that evolved in one region but has gotten to another distant region (usually by human activity), where it would not naturally have migrated because of some barrier, such as an ocean. Also referred to as INTRODUCED SPECIES, EXOTIC SPECIES or ALIEN SPECIES.