Ever heard of a natural haven thriving amidst urban sprawl? That’s the Dellbrücker Heide. This nature reserve sits in Cologne’s Dellbrück district. It is a surprising refuge for rare species.
The Dellbrücker Heide spans about 39 hectares. It forms part of the Bergische Heideterrasse. Despite its small size and urban location, it boasts remarkable biodiversity.
Imagine this area before 1993. The Dellbrücker Heide served as a military training ground. This military use inadvertently preserved open habitats. Dwarf shrub heaths and sandy grasslands were spared from development. In the winter of 2008/2009, old military structures were removed. This happened as compensation for the expansion of Cologne’s highway ring.
The Dellbrücker Heide is home to threatened species. These include the blue-winged grasshopper and the sand lizard. You can also spot the Rostbinde butterfly and silver grass habitats. In 2009, Cologne recognized the area’s ecological value. The Dellbrücker Heide was designated a nature reserve.
To prevent the extinction of species reliant on open habitats, conservation efforts are underway. These efforts mimic natural processes. Grazing by goats and sheep helps. Selective removal of trees also plays a role. The endangered crucian carp and swallowtail butterfly depend on the Dellbrücker Heide. Heather, silver grass, and mountain sandwort also thrive here.
The City of Cologne owns half the area. The BUND manages recreation and nature conservation. After becoming a nature reserve in 2011, military installations were dismantled. The land was restored for nature conservation.
The Dellbrücker Heide features a former quarry. This quarry has become a nutrient-poor body of water. Numerous small bodies of water are also present. These pools provide habitats for species like the crucian carp.
Many endangered plants and animals inhabit the Dellbrücker Heide. Heaths and grasslands support mountain sandwort and silver grass. You might also find dog violets and rose mallows. Butterflies, grasshoppers, wild bees, amphibians, reptiles, and birds reside here. The Dellbrücker Heide is a haven for rare birds. The red-backed shrike and the whitethroat can be seen. Insects like the swallowtail and comma skipper also live here. Listen for the croaking of the crucian carp. Reptiles include the ringed snake and the sand lizard.
The Bergische Heideterrasse has been shaped by human activity. Over centuries, unique species adapted to the environment. Measures are essential to preserve habitats. A management plan guides conservation efforts. The City of Cologne and the BUND work together.
Various measures maintain the Dellbrücker Heide’s open landscape. Mowing with scythes helps preserve open land. Grazing keeps vegetation in check. Removing shrubs also prevents overgrowth. The Dellbrücker Heide stands as a testament. It shows how nature and conservation can thrive even in an urban setting.