The Final Green Frontier: The Dehesa, Transhumance, and an Ancient Pact with the Land

The Final Green Frontier: The Dehesa, Transhumance, and an Ancient Pact with the Land

Publicado el03/05/2026
The Final Green Frontier: The Dehesa, Transhumance, and an Ancient Pact with the Land

Source: https://www.epochtimes.es/noticias/la-ultima-barrera-verde-la-dehesa-la-trashumancia-y-el-pacto-milenario-con-la-tierra-32082.html 

Ernestine Lüdeke walks through the dehesa as if tending a fragile treasure: she knows that every sheep grazing here not only feeds, but also clears the undergrowth, fertilizes the soil, and helps prevent fires that could devour everything. Through the Monte Mediterráneo Foundation, she defends transhumance — an ancestral system linking south and north, biodiversity and economy—which today proves essential in combating desertification and rural abandonment.

 

The dehesa is a human-shaped silvopastoral ecosystem, developed over centuries from Mediterranean forest into a productive system. Shrubland was cleared and the woodland was opened up, selecting holm oaks and cork oaks that provide shade, a suitable microclimate and acorns for extensive livestock farming. This balanced management has enabled the use of grazing land, cork, fuelwood, and hunting, shaping a multifunctional system that combines ecological sustainability with rural production. Illustrative image. JamonSeleccion. Pixabay.

 

Spain hosts a singular ecosystem, shaped by human activity over centuries with both purpose and wisdom. The dehesa—an agro-silvopastoral landscape par excellence—has guided human activity toward an ancestral form of sustainability, where selective hunting, extensive livestock farming, wood collection, cork harvesting, and acorn grazing coexist in equilibrium with the land and the rhythms of time.

Ernestine Lüdeke, president of the Monte Mediterráneo Foundation, explained to The Epoch Times España that the dehesa is an agroecosystem born from the native Mediterranean woodland, which has been transformed by removing scrub and selecting productive tree species.

Lüdeke noted that about two millennia ago, as populations became sedentary, part of the woodland was cleared. This allowed abundant pasture to grow beneath the remaining trees, benefiting from the shade they provide in summer and the milder microclimate they create in winter, as well as from acorns used to feed pigs. Communities also began practicing pastoral livestock farming, gradually refining the system into what we now know as the dehesa.

Established in 1993, the Monte Mediterráneo Foundation has focused on the conservation, sustainable management, and promotion of the Mediterranean dehesa ecosystem. According to Lüdeke, the dehesa—often described as the last barrier against desertification due to its resemblance to the African savanna—is an extremely delicate ecosystem. Its vitality and balance depend on the continuous interaction between wildlife and extensive livestock farming, which keeps the landscape open, enriches the soil, and preserves biodiversity.

“As a system built from many small components, it doesn’t work like a simple pasture with dairy cows: cows graze and are then kept indoors in winter. Here, it’s different. Here, sheep graze the grass while it is still short.”

“Then, as the grass grows taller, it has to be eaten by cattle, since sheep don’t graze tall grass or don't like it. It must also be kept clear so that when acorns fall, pigs can reach them and feed on them together with some grass. And in summer, we have neither water nor food. That’s where the idea of moving the sheep comes from,” Lüdeke explained.

Lüdeke noted that this practice has been carried out for a thousand years, requiring sheep in winter and spring to act as natural landscapers. Through manure and light trampling, they maintain the agroecosystem without compacting the soil, unlike heavier livestock. In summer, however, they become surplus due to the lack of resources, and the system traditionally functioned in connection with the northern mountains.

 

Here, livestock graze beneath holm oaks that provide shade and acorns. The dehesa: sustainability inscribed in the landscape. Illustrative image.

Photo: PABLOGOMEZFOTOGRAFIA, Pixabay.

 

In the past, extensive livestock systems driven by transhumance maintained a perfect balance between the Mediterranean dehesa and the northern mountains—such as the Cantabrian Range, the Picos de Europa, the Iberian System, and regions like León, Palencia, and Zamora. As there was not enough water or pasture for livestock in the dehesa during summer, it was temporarily left without grazing animals; therefore, transhumant flocks travelled along livestock routes and drove roads toward northern mountain pastures, where they found fresh, dense, and nutritious high-altitude grazing.

Extensive grazing, promoted by traditional livestock systems such as transhumance, has a positive impact on ecosystem sustainability. Herds function as natural firebreaks, removing built-up biomass that would otherwise serve as fuel for forest fires, further intensified by droughts and periods of intense heat.

According to Lüdeke, the main factor behind the recent rise in large-scale wildfires in rural Spain is the shift in ecosystem management. This shift began when transhumance was abandoned and replaced by sedentary extensive livestock systems, where different types of livestock are no longer used seasonally.

“The main fires last year were in the north, weren’t they? Very unusual, because they used to happen here in the south. So wherever transhumant sheep have disappeared, millions and millions of sheep have disappeared.”

The Monte Mediterráneo Foundation has launched a proposal called Caminos Trashumantes, a project dedicated to promoting transhumance and connecting the general public with this extensive livestock practice. Its objective is to help people appreciate the value of this living cultural heritage embodied in this millennia-old practice, as well as the cultural activities derived from it, which also have a positive impact on environmental and territorial sustainability.

According to the project’s website, “the initiative includes guided routes, craft workshops, visits to livestock farms, educational activities, local fairs, gastronomy, and much more. All of them are connected by a common thread: transhumant culture and its environment.”

“It brings together gastronomy, textiles, ecology, biodiversity, rural depopulation, vocational training for shepherds, and more—it covers many different areas,” Ernestine explained.

These types of projects bring to the forefront the value of transhumance in Spain as something far beyond livestock management: it is a way of life that has shaped rural landscapes, supported local economies, and preserved deep-rooted traditions.

Transhumance and traditional dehesa management are not relics of the past but living tools to combat desertification, large-scale wildfires, and rural depopulation. Projects like Caminos Trashumantes invite us to reconnect with this living heritage: to walk these drovers’ roads, to value the wool, meat, and cheese it produces, and to support the shepherds who continue to uphold it.

The balance that sustained this ecosystem for centuries depends on making the right choices: responsible consumption, supportive policies that protect extensive livestock systems, and ensuring the dehesa does not become a memory.

Biodiversity conservation, especially the balance and sustainability of wild species in the dehesa, is also a priority in the foundation’s work. This is evident in initiatives such as the 2016 Bioblitz— which recorded a biodiversity record that still stands— as well as in the daily management of the ecosystem, where efforts focus on integrating extensive livestock grazing, soil conservation, and the protection of native wildlife.

Bioblitz is a 24-hour event inspired by National Geographic’s Geo Day, during which participants carry out an inventory of wild species within a defined area. The data collected is incorporated into global databases and has achieved a record level of biodiversity.

“For ten years, no one has exceeded our record—we achieved the highest biodiversity. The catalogue is scientific, as a research team verifies that what is recorded is accurate. There were 125 people working in the field for 24 hours gathering data.”

César Múnera



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