In [[biogeography]], a [[species]] is defined as native to a given region or [[ecosystem]] if its presence in that region is the result of only natural processes, with no human intervention. Every natural [[organism]] (as opposed to a [[domestication|domesticated]] organism) has its own natural range of distribution in which it is regarded as native. Outside this native range, a species may be introduced by human activity; it is then referred to as an ''[[introduced species]]'' within the regions where it was anthropogenically introduced. | In [[biogeography]], a [[species]] is defined as native to a given region or [[ecosystem]] if its presence in that region is the result of only natural processes, with no human intervention. Every natural [[organism]] (as opposed to a [[domestication|domesticated]] organism) has its own natural range of distribution in which it is regarded as native. Outside this native range, a species may be introduced by human activity; it is then referred to as an ''[[introduced species]]'' within the regions where it was anthropogenically introduced. |