In tribal cultures, usufruct means the land is owned in common by the tribe, but families and individuals have the right to use certain plots of land. Most Indian tribes owned things like land as a group, and not as individuals. The family never owned the land, they just farmed it. This is called usufruct land ownership. A person must make (more or less) continuous use of the item, or else he loses ownership rights. This is usually referred to as "possession property" or "usufruct". Thus, in this usufruct system, absentee ownership is illegitimate.