Freshwater rewilding

View

2 Wetlands

2.4 Methods of wetland rewilding



Some of the most important methods of wetland rewilding include:

  • Plugging drainage ditches:
    • Description – Blocking drainage ditches (e.g. putting back soil) to restore natural water levels and hydrological processes.
    • Example – In the Oder Delta, which you will read more about in the peatlands case study later in this module.
    • Impact – Improved water retention, restored wetland habitats, and increased wilder nature, including wild species.
  • Reintroducing keystone species:
    • Description – Reintroducing species that play a critical role in maintaining ecosystem health.
    • Example – The reintroduction of beavers in various European wetlands, which create ponds, slow water flow, and increase habitat complexity.
    • Impact – Enhanced biodiversity, improved water quality, and natural flood management.

An illustrated educational poster titled 'The Beaver: a keystone species' shows a beaver in its natural habitat. The beaver is gnawing on a tree trunk near a pond surrounded by various plants and animals. Short texts are written next to different elements, explaining the ecological impact of beavers. For example, it mentions that beaver ponds filter water, provide habitats for fish, amphibians, and insects, and create environments for birds and other wildlife. The illustration highlights how beavers contribute to biodiversity by creating wetlands that support various species.

The beaver: A keystone species. Credit: Jeroen Helmer / ARK Rewilding Netherlands.

Click here for an enlarged version of the above image.