They are also used to raise the Spanish fighting bull and the source of jamón ibérico, the Iberian pig.
Dehesa is an anthropogenic system that provides not only a variety of foods, but also wildlife habitat for endangered species such as the Spanish imperial eagle.
Oaks are protected and pruned to produce acorns, which the famous black Iberian pigs feed on in the autumn during the montanera.
The understory is usually cleared every 7 to 10 years to prevent the takeover of the woodland by shrubs of the rock rose family (Cistaceae), often referred to as "jara", or by oak seedlings.
[5] The dehesa is in many ways similar to the California oak woodland, although the former is typically much more intensively managed.