How can beavers help and harm the environment?

Dams are usually only built on small streams, less than 3 metres wide, and these can moderate the detrimental effect of irregular flow. The modifications can also raise the water table locally creating wetland areas to the benefit of biodiversity. read more

When people abandoned the surrounding area, wildlife returned. 12 minutes into the documentary, they discuss the key role beavers played in this. A fun takeaway from the documentary is that human beings are much worse for the environment than a nuclear meltdown. read more

They include Scottish Environmental Protection Agency, the local environmental health department of Argyll and Bute Council and the University of Stirling. Research from elsewhere suggests that ponds and water pools created from beaver dams can have marked benefits on local water quality. read more