A non-native is any species that occurs outside its native range as a result of deliberate or accidental introduction. Non-natives compete with native species for habitat and food, and may have an impact on specialized ecosystems.
Beyond the usual assortment of urban and rural pest issues, extensive populations of non-native invasive plants and pests can present an additional challenge to protecting natural resources.
What is the southern pine beetle?
What is Phragmites?