Chorology in biogeography is the teaching of the geographical spread of organisms or individual species and systematic clans

The area is the distribution area of a species. Chorology describes and classifies the connections between living beings and their occurrence. It deals with both the current state and the conditions of the past and documents their change. It serves as an aid of , but in particular as a descriptive part of ecology (the teaching of living beings and their environment). It is of particular importance in the context of ecology.