What is an example of an intentional introduction of a non-native species to an area?
One of the earliest human-influenced introductions of non- native species involved prehistoric humans introducing the Pacific rat to Polynesia. Today, non-native species come from horticultural plants either in the form of the plants themselves or animals and seeds carried with them, and from animals and plants released through the pet trade. Invasive species also come from organisms stowed away on every type of transport vehicle.