Tender: Creation of 24 Wetland Ponds for Natterjack Toad and Habitat Restoration – Caerlaverock Cluster

About

Caerlaverock Cluster is seeking a supplier to create a network of 24 ponds across the estate totalling approximately 22,000m2, comprising seven Natterjack Toad-specific ponds and 17 general habitat and water restoration ponds. The Natterjack ponds are designed to reintroduce historic breeding habitat, shrinking in spring to leave a warm deepening that triggers Natterjack spawn, while the habitat and water restoration ponds will reinstate general wetland habitat, provide natural flood and surface water management, control diffuse pollution and catch sediment from adjacent hillside fields, and offer expanded winter waterways for migratory wildfowl and summer habitat for damselflies and aquatic pond insects. The ponds are grouped into networks and the layout of each has been specifically designed to support whole ecosystems and to add to existing habitat.