The dehesa is one of the most distinctive landscapes in Spain — and one of the least understood by visitors who encounter it for the first time. It looks, at first glance, like a park: widely spaced oak trees over a grassy understorey, cattle and pigs moving between them, a sense of managed openness that is unlike either wild forest or conventional farmland.
That impression is not entirely wrong. The dehesa is a managed landscape, and it has been managed in more or less the same way for several centuries. But it is also one of the most biodiverse habitats in Europe, supporting more species of plants, insects, and birds than almost any other agricultural system on the continent.
How It Works
The key to the dehesa is the relationship between the trees — mainly holm oak and cork oak — and the animals that graze beneath them. The oaks produce acorns, which are the primary food source for the Iberian pig during the final months before slaughter. The pigs, in turn, disturb the soil in ways that benefit certain plant species. The cattle keep the grass short enough for ground-nesting birds. The whole system is interdependent in ways that took centuries to develop and that are genuinely difficult to replicate.
The dehesa is also the habitat of the Iberian lynx and the Spanish imperial eagle, both of which depend on the combination of open grassland and dense scrub that the system provides. The conservation of these species is, in part, a consequence of the continued viability of traditional dehesa farming.
Visiting the Dehesa
The best dehesa landscapes are found in Extremadura and western Andalusia. Several farms offer rural tourism experiences that include guided walks, explanations of the farming system, and tastings of the products it produces. These visits are worth seeking out — they offer an understanding of the landscape that no amount of reading can fully replace.