Dr Roisin Campbell-Palmer, the Beaver Trust’s head of restoration, said: “Bringing beavers back is quite a complicated process which requires licensing but it is well worth it.
“It is a species we really want to see back.
“They can restore wetlands behind their dams, which leads to there being more fish and amphibians. That can mean more insects and that can increase the number of bats in a habitat.
“The dams slowly release water reducing the risk of flooding but they can also divert water into areas affected by drought.
“The dams literally filter the water that passes through them increasing its purity.
“They are very hardy creatures so they adapt well.
“There are some potential risks because they burrow and can erode fragile river banks but those risks can be managed.”
The National Farmer’s Union (NFU) has previously expressed concerns about the impact of beavers on farmland.