You migratory movements are the displacements of populations between territories and are related to the factors of attraction and repulsion of people in each region. In demographic dynamics, people who leave a given location are called “emigrants” and immigrants who arrive in a given territory.
Historically, until Neolithic Revolution human societies were always migrating in search of food, water and weather. With the advent of agriculture, groups ceased to be nomadic hunter-gatherers and settled down, settling in fixed territories.
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Migrations can happen on any scale: from the daily migration of people going to work in nearby cities (commuting migration) to mass flight events to other countries (diaspora), such as refugees from catastrophes natural. Economic, military, religious, environmental, political and social factors can motivate people to move.
Migrations can be classified according to three variables: time, space and form of movement.
When a group leaves the countryside for the cities. This happened on a large scale in Brazil at the end of the 19th century because of urbanization and industrialization and because of the cyclical droughts in the northeast. Seeking opportunities and fleeing weather conditions, thousands of peasants went to the big cities. More recently, the rural exodus has happened due to the mechanization that replaces the workforce. The.
It can happen for several reasons. The Somali Diaspora, for example, occurred when thousands of Somalis fled the civil war in Somalia (1986 to present) to other continents.
The temporary and seasonal displacement of people who spend part of the year in one place and the remainder of the year elsewhere. Some jobs depend on the seasons, such as that of farmers, hunters, fishermen.
