Black pigs in dehesa in Estramadura, Spain. A dehesa is an agro-sylvo-pastoral mode of cultivation formed by a sparse undergrowth grazing where pigs or sheep graze freely and where green or cork oaks grow, cut and exploited. This very old system persists in the poor and dry areas of the Mediterranean basin and covers several million hectares in the Iberian Peninsula.

sus scrofa domesticus quercus suber quercus ilex sus quercus suidae artiodactyla mammalia synapsida vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota fagaceae fagales dicotyledoneae angiospermae spermatophyta / phanerogamae tracheophyta embryophyta chlorobionta archaeplastida sus scrofa domesticus quercus suber quercus ilex pig (sus scrofa domesticus) traditional agriculture traditional breeding landscape mediterranean forest cloud spring adult herd (flock) eat overview meadow sus tree cork oaks (quercus suber) quercus extensive breeding holly oak (quercus ilex) blue sky oak grove may extremadura autonomous community pigs (sus scrofa domesticus) traditional agricultures traditional culture traditional cultures traditional breedings landscapes panorama panoramas evergreen forests mediterranean forests evergreen tree forest evergreen forest cloudy clouds cloudy sky adults herds (flocks) eating feed feeding eaten swallow swallowing swallowed overviews global sight global sights full length meadows pasture pasturages pasturage pastures trees cork oak (quercus suber) extensive breedings holly oaks (quercus ilex) blue skies good weather nice weather oak groves extremadura (madrid autonomous communities) domestic mammal domestic animal agriculture type agriculture natural resources use forest area sky meteorological phenomenon atmosphere temperate season seasons stage of development individual group enumeration shot agricultural area suidae artiodactyla mammalia synapsida vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota woody plant morphology (botany) morphology organism oak (quercus sp) fagaceae family fagales order flora fagaceae fagales dicotyledoneae angiospermae spermatophyta / phanerogamae tracheophyta embryophyta chlorobionta archaeplastida outdoor breeding deciduous temperate forest temperate forest spain european union europe