what organisms are usually the pioneer species in an area
Pioneer species are the first species to enter an area after a disturbance. They are the colonizers. The pioneer species are the first stages of ecological succession, which is a series of changes over time in the types of organisms in an ecosystem.Common pioneer species include bacteria, fungi and lichens.Pioneer species usually have the ability to live in harsh environments where other species cannot survive.hey are the colonizers. The pioneer species are the first stages of ecological succession, which is a series of changes over time in the types of organisms in an ecosystem. Common pioneer species include bacteria, fungi and lichens.