KNOWLEDGE BASE

This text discussed challenges in analysing archaeological sites in wetlands. It does this by using the example of an archaeological site in Northern Germany, where extensive beaver burrows were discovered. A gnawed piece of wood was also found, though it is likely that this wood was chewed by a water vole rather than a beaver.

In this book chapter, the author describes how beavers create habitats for a variety of different species. In North America, birds such as herons, swans, and osprey benefit from the open water and dead wood. Wolves use abandoned lodges for dens. Moose and deer come to beaver ponds to cool off and get relief from biting insects. The text sets out connections to many other species including some amphibians and reptiles. Please note, this resource is not open-access.

This study on beavers in the Ulungur watershed, China, described over 150 lodge sites in different seasons. Beavers preferred areas near deep water with dense vegetation, often found in high-density willow forests. The authors also noted that beavers often built lodges on the opposite bank from human settlements. The text suggested some protection measures to be implemented, including the construction of migration channels near human dams. Please note, this text is mostly written in (Simplified) Chinese.

This study explored genetic activity in Eurasian beavers' testes, looking for any differences between the breeding and non-breeding seasons. It identified over 26,000 highly-active genes, 42 of which were regulated much more (or much less) across the seasons. These genes were linked to processes like metabolism, stress responses, and steroid production.

Beavers are increasingly used in restoration projects to improve freshwater ecosystems such as streams, wetlands, and floodplains. By building dams, they enhance water flow, create diverse habitats, and support wildlife. However, conflicts with human land use can arise. This guidebook offered practical advice on how to partner with beavers for habitat restoration, based on the latest science and case studies from the field. Whilst the text focussed on the western USA, it should be of interest for all restoration practitioners.