Stable Trees in an African Savannah

Photo: Artis

Zoo ARTIS, located in the heart of Amsterdam, is the oldest zoo in the Netherlands. It is a place where people, animals, plants, and trees come together to support biodiversity in the capital. Recently, ARTIS has taken a significant step forward in animal welfare with the realisation of a new lion enclosure.

A Natural Habitat for Lions

The new lion enclosure is ten times larger than the previous one. Landscape architect Thijs de Zeeuw and architect Alexander Lefebvre designed the new habitat, while De Enk served as the main contractor for its construction. A key principle of the design is that the enclosure should accommodate the lions’ natural behaviour. The new habitat features a rolling landscape inspired by the African savannah during various seasons. It includes climbing trees, food trees, waterfalls, and a catnip garden, all of which provide a natural environment for the lions.

Lions and Trees

Trees are an essential part of the new lion enclosure. Lions often seek shade under trees to cool off when the weather is hot. Some lions climb trees to use them as vantage points, giving them a better view of their surroundings. Additionally, lions may climb trees to find a safe place to rest or sleep. For these reasons, it was crucial to ensure the stability of the trees within the enclosure.

Photo: De Enk

Root Ball Anchoring for Stable Trees

To provide the necessary stability for the trees, GreenMax’s root ball anchoring system has been applied. This solution effectively anchors trees underground using strong strap belts and ground anchors around the root ball. The system allows the tree to maintain its natural flexibility while eliminating the need for above-ground stakes. In a lion enclosure, above-ground stakes pose a risk of being pushed over. GreenMax’s root ball anchoring system has been used for many years in tree planting projects, including at the Trudo Tower in Eindhoven and WonderWoods in Utrecht.

Minimal Ecological Footprint

The goal during the renovation of the lion enclosure was to minimise the ecological footprint. All materials were checked for condition and reusability to ensure sustainability.

Lions Enjoying Their New Habitat

Over time, the landscape will become more wild and natural, and the lions will fully claim the territory as their own. The lions have adapted calmly to their new environment and quickly felt at home in their expanded habitat.

Photo: Artis