Forests of the Iberian Peninsula

The woodlands of the Iberian Peninsula are special ecosystems found across a large land area. This land, called the Iberian Peninsula, includes countries such as Spain, Portugal, as well as smaller areas like Andorra, Gibraltar, and the southern part of France. These forests are home to many different plants and animals, each region having its own unique look and life, though the lines between them can be blurry.

These woodlands play an important role in the environment. They help control the climate, provide clean water, and give animals and plants a place to live. People have lived near these forests for thousands of years, using the wood for building and other needs. Today, protecting these forests is very important to keep the natural balance and support wildlife.

Even though each part of the Iberian Peninsula looks a little different, there are many similarities in the kinds of trees and plants that grow there. This makes the forests of the Iberian Peninsula a fascinating area to study, showing how nature can adapt and thrive in many conditions.

Origin and characteristics

The Mediterranean Sea experienced big changes in sea level and the positions of the continental plates of Europe and Africa. These changes led to shifts in climate and the plants that could grow there.

The Iberian Peninsula is located in southwestern Europe close to North Africa. Because of this unique position, it has many different types of plants from both areas. These include plants that need a lot of heat, plants that grow in dry climates, and plants from cooler mountain areas. The diverse and complex mountains, such as the Cordillera Bética, Sistema Ibérico, and Pyrenees, created many different environments where plants could adapt and thrive, leading to the rich variety of flora seen today.

The Eurosiberian region

See also: Cantabrian mixed forests and Pyrenees conifer and mixed forests

The Eurosiberian Atlantic zone runs through northern Portugal, the Galician Massif, Cantabrian Mountains, and the western and central Pyrenees. It has a humid climate with mild winters and no dry season. This area includes parts of Asturias, Cantabria, the Basque Country, and northwest Navarre.

The main plants here are deciduous oak forests, with trees like European ash and hazels. Higher up, you’ll find beeches and sometimes silver firs. People have changed much of this land into meadows, but some original plants still survive at the edges. Important forests in this area include beech, oak, birch, and fir forests.

The Mediterranean region

The Mediterranean region covers most of the Iberian Peninsula, including the Balearic Islands. This area has long, dry summers and rainfall that varies from very wet to quite dry. Temperatures can range from very warm to very cold, with some places never freezing and others getting below -20 °C in winter.

Typical forests in this region include evergreen trees like oak, cork oak, wild olives, and juniper. In warmer or sandy areas, you might find Aleppo pine forests or juniper and stone pine forests. Some very dry places, like parts of Murcia and Almeria, have only European fan palms, thorny thickets, or Kermes oak groves. Similar plants grow in salty or dry inland areas like the Ebro river valley.

Shrubby borders or undergrowths

Shrubby borders are important parts of forest ecosystems. They help forests grow naturally and give food and shelter to animals that live there. These borders are made up of spiny shrubs like gorse, box, and thyme, depending on the type of forest and the climate.

Stages of degradation

The forests of the Iberian Peninsula go through different stages when they are damaged. Starting from a healthy, thick forest with local plants, the next stage shows fewer native trees and more plants like holly and maple. Over time, native trees disappear, and pine forests grow instead, along with dry-loving bushes.

As damage continues, trees vanish completely, and thorny bushes and small plants take over. Finally, even these plants disappear, leaving only thin grass and exposed soil, leading to a dry, desert-like landscape.