Habitat restoration in limestone quarries

Habitat restoration in limestone quarries

Guidelines for Business Activities: Limits to impact restoration

Context: A cement company has holdings in important limestone areas of Bavaria, Germany, adjacent to a Natura 2000 site (a regional KBA identified for birds). Restoration could virtually double the area of protected limestone habitats and increase ecological connectivity.

Risks:

Several important species are currently at risk, including birds such as the Woodlark (Lullula arborea), Tree Pipit (Anthus trivialis), Wryneck (Jynx torquilla), and Rock Bunting (Emberiza cia); the Smooth Snake (Coronella austriaca); and many rare plants.

Responses to date:

  • Restoration of an old quarry and surrounding area, testing a mixture of active and passive restoration.
  • Maintenance of important calcareous low-nutrient meadows through appropriate management strategies.
  • Monitoring and mapping of birds and other target species to establish a baseline and record trends and changes.
  • Production of maps, flyers, and other educational materials and implementation of educational activities with children and other groups.
  • Identification of target and indicator species to facilitate more effective monitoring.

The project is a partnership between BirdLife International and HeidelbergCement