Nomadism is also a lifestyle adapted to infertile regions such as steppe, tundra, or ice and sand, where mobility is the most efficient strategy for exploiting scarce resources. For example, many groups in the tundra are reindeer herders and are semi-nomadic, following forage for their animals. Pastoral nomads make their living raising livestock, such as camels, cattle, goats, horses, sheep, or yaks. These nomads travel to find more camels, goats, and sheep through the deserts of Arabia and northern Africa.
An nomad is a person with no settled home. Who moves from place to place as a way of obtaining food, finding pasture for livestock, or otherwise making a living. The word Nomadd comes from a Greek word that means one who wanders for pasture. Most nomadic groups follow a fixed annual or seasonal pattern of movements and settlements.
Nomads keep moving for different reasons. Nomadic foragers move in search of game, edible plants, and water. The Australian Aborigines, Negritos of Southeast Asia, and San of Africa, for example, traditionally move from camp to camp to hunt and to gather wild plants. Some tribes of the Americas followed this way of life.
Because they usually circle around a large area, a community gets formed and the other families generally know where the other ones are
The winter locations have shelter for the animals and are not used by other families while they are out. In the summer they move to a more open area that the animals can graze. Most nomads usually move in the same region and don’t travel very far to a totally different region.
Following the development of agriculture, most hunter-gatherers were eventually either displaced or converted to farming or pastoralist groups. Only a few contemporary societies are classified as hunter-gatherers, and some supplement, sometimes extensively, their foraging activity with farming and/or keeping animals.
‘Nomadic’ hunter-gatherers (also known as foragers) move from campsite to campsite, following game and wild fruits and vegetables. Most nomads usually move in the same region and don’t travel very far to a totally different region.Hunting and gathering was the ancestral subsistence mode of Homo, and all modern humans were hunter-gatherers until around 10,000 years ago.
In the case of Mongolian nomads, a family moves twice a year. These two movements would generally occur during the summer and winter. The winter location is usually located near mountains in a valley and most families already have their fixed winter locations. Most nomads usually move in the same region and don’t travel very far to a totally different region.
Source: Wikipedia.