黑料正能量

Once a thriving species across the English countryside, beavers were hunted to extinction in the 17^th century, and it鈥檚 thought they were last seen in Norfolk much earlier than that. They were hunted mainly for their fur, which was often used to make hats, coats and gloves, but also for their meat. In the 17^th century Catholic church leaders ruled that the beaver was a fish (it鈥檚 actually a semi-aquatic mammal) so people giving up meat for Lent could continue to eat it.

Today we understand much more about the true nature of beavers, and their importance to the ecosystem as a keystone species 鈥� a species that even in small numbers has a huge effect on its surroundings.

鈥�There are lots of keystone species, but beavers are particularly famous because of their engineering abilities,鈥� says Dominic Buscall, project manager at Wild Ken Hill. 鈥�鈥�They can create entire ecosystems in the space of 24 hours by damming up and building channels in rivers and streams.鈥�

That鈥檚 why beavers are being reintroduced to England in a number of places, thanks to conservation projects. Reintroducing beavers to the Ken Hill Estate 鈥� a 4,000-acre estate near Snettisham 鈥� is a key part of the Wild Ken Hill project. The project aims to return 1,500 acres of the estate to a natural state 鈥� known as 鈥�鈥�rewilding鈥�.

Dominic and farm manager Nick have been working hard on the project since 2018 and have already seen dramatic results.

鈥�I鈥檇 heard of the concept of rewilding, but I wasn鈥檛 hugely familiar with it,鈥� says Dominic.

Learning from experience

During 2018, the Ken Hill Estate team were approached by Natural England 鈥� an organisation that鈥檚 part of Defra and helps landowners across the country develop conservation schemes.

鈥�They invited us to meet Alastair Driver, director of 黑料正能量, and Charlie Burrell who runs Knepp Castle Estate in West Sussex,鈥� says Dominic. 鈥�鈥�Knepp Castle Estate started rewilding their whole farm in 2001, and it鈥檚 incredible what they鈥檝e done in terms of results for wildlife. They both made a very compelling presentation on the benefits of rewilding land.鈥�

Rewilding is the large-scale restoration of ecosystems where nature can take care of itself. It seeks to reinstate natural processes and, where appropriate, missing species 鈥� allowing them to shape the landscape and the habitats within. And action is urgently needed: some 56% of species in the UK are in decline and 15% are threatened with extinction. That鈥檚 where the beavers come in. As a keystone species, their presence benefits their habitat in lots of ways.

Ecological engineers

鈥�The dams built by beavers slow down the flow of water and act as a filter,鈥� explains Dominic. 鈥�鈥�This means water quality improves, and more of it stays in the land, creating a larger wetland: that鈥檚 good for species like aquatic invertebrates and birds. Typically, you鈥檒l see a big increase in insects where beavers are, so bats, non-aquatic birds, otters and water voles all benefit.鈥�

Once the Wild Ken Hill team had the idea and identified a perfect piece of land, they applied to Natural England for a licence to reintroduce beavers. 鈥�鈥�The piece of land we鈥檙e putting the beavers in is a very wet area of woodland,鈥� says Dominic. 鈥�鈥�It was probably drained in the 1940s or 50s. On maps from 250 years ago it鈥檚 just called 鈥�鈥�The Fen鈥�, so we鈥檙e returning it to what it used to be. We had leading experts in from Exeter University and they鈥檝e done some modelling and said it鈥檚 the perfect habitat for beavers. We鈥檝e talked to our parish councils, other landowners and farmers and local residents, and they鈥檙e all really happy with our choice.鈥�

Next steps

The next step was to construct an enclosure to keep the beavers safe. 鈥�鈥�The experts we consulted gave us a 鈥�鈥�beaver-proof鈥� specification,鈥� says Dominic. 鈥�鈥�It鈥檚 about a 2km perimeter fence, buried about a foot into the ground, with significant metal grilles on any culvert that鈥檚 going in or out of the enclosure. It took us about a month.鈥�

After being trapped by a licensed professional in Scotland where they live successfully outside of enclosures, two families of beavers will be released into this newly-built habitat. Two family groups of two adults and up to four offspring will live in the enclosure about 300m apart.

鈥�Once they鈥檙e released into the enclosure we don鈥檛 expect to see them that often, because they鈥檙e quite elusive animals,鈥� says Dominic. 鈥�鈥�But we鈥檒l have motion-detecting cameras set up, and the beavers could be radio-tagged, and several times a week we鈥檒l do a walk of the perimeter to check on their welfare.鈥�

Future prospects

鈥�We hope our project, along with others across England, can help beavers live wild and be reclassified as a native species,鈥� says Dominic. 鈥�鈥�They鈥檙e currently listed as non-native species, which is crazy. In the short term, we want this project to open up this piece of land to the local community 鈥� that鈥檚 a really exciting part of it.鈥�

Find out more about .

This article was originally published in the March 2020 issue of .