Töpker Teich, Nature reserve in Bielefeld, Germany

The Töpker Teich is a nature reserve of about 14.26 hectares between Heepen and Altenhagen in Bielefeld. Its pond covers only 0.125 hectares at 83 metres above sea level, and the surrounding area serves as a breeding and feeding habitat for dragonflies and water birds.

The site became a protected nature reserve in the 1990s after clay extraction ended. Since then, additional conservation work has supported the development of these habitats.

The pond lies between Heepen and Altenhagen in Bielefeld and is only about 0.125 hectares in size, at 83 metres above sea level. The surrounding reserve of roughly 14.26 hectares is a breeding and feeding habitat for dragonflies and water birds. The pond itself is affected by discharges of domestic wastewater.

The site is accessible through marked paths that lead through different habitats. It is important to stay on the paths and avoid disturbing sensitive areas to protect wildlife.

The area serves as a stepping stone biotope for species that depend on standing water. This function makes it a crucial link in the landscape for aquatic organisms and migratory birds.