Colonisation (or Colonization) occurs whenever any one or more species populates a new area. The term, which is erived from the Latin colere, "to inhabit, cultivate, frequent, practice, tend, guard, respect," originally related to humans. However, 19th century biogeographers dominated the term to describe the activities of birds or bacteria, or plant species. Human colonization is a narrower category than the related concept of colonialism, because whereas colonization refers to the establishment of settler colonies, trading posts, and plantations with the metropole's own population, colonialism deals with this and the ruling of new territories' existing peoples.