KNOWLEDGE BASE

For this study, scientists compared two beaver populations: one which was introduced 42 years ago, and another which had been around for 72 years. By comparing them, scientists hoped to learn about beavers' foraging strategies and impacts on tree biodiversity. Whilst the older population moved further away from the water's edge to find food than the younger population, both were assessed to be following 'Optimal Foraging Theory.'

In Poland, researchers sought to work out how Eurasian beavers feel about urban environments. They found that, at a landscape scale, Eurasian beavers generally prefer to avoid such areas. However, 13% of the beaver sites they studied were in the most densely-populated regions, so beavers can clearly adapt to the relatively small patches of habitat present in urban environments. As beavers continue to expand across Europe, the authors suggested that studies like this will be important to understand and manage potential human-beaver conflicts in urban areas. Please note, this resource is not open-access.

This fascinating study explored the place that Eurasian beavers had in human societies across northern Europe in the Mesolithic and Early Neolithic periods. It analysed findings of beaver teeth being used in human tools and also as pendants, including in human burial sites. The text also suggested that beavers' skills in habitat creation may have supported human hunter-gathering activities. The research used a multi-species lens to try to understand the significance of these different human-beaver interactions, which are summarised in Figure 8.

Reintroducing species like the Eurasian beaver can cause human-wildlife conflicts; this is true for most ecosystem engineers, carnivores, or large herbivores. In this study, researchers built computer models to identify where, in Italy, beaver populations would most likely expand to and where potential human-beaver conflicts would most likely arise. They found that the conflict risk was higher for beaver populations in central Italy than in northern Italy, which may help guide future management efforts.

Since 2019, Eurasian beavers have established populations in Central Italy. In this article, researchers analysed their parasites and pathogens, identifying Giardia, Trichuris, and a new nematode species. New ectoparasites, bacteria, and blowflies were also recorded. These findings highlighted that a full disease risk analysis should be conducted to assess potential risks to wildlife, livestock, and human health. Please note, this resource is not open-access.