In brief, migration of population, in space and time with aid, advice and consent of na-
ture and earth of opportunities, is a special and an important topic of study in a human branch of
geography. It creates a particular niche especially in the fields of population geography. It is very
complicated and problematic global issue and draws attention of scientists of various specialties.
Especially for population geographers, it is very interesting topic of research because of its inher-
ently spatial character.