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Project

Beavers at Little Sea, Studland

A brown beaver climbs over a small hill of moss in front of wet ground with several sticks.
The first licensed release of beavers to live in the wild takes place at Little Sea, Purbeck, Dorset | © National Trust Images / James Dobson

Two pairs of beavers were released into the wild at Little Sea, Studland, in March 2025, under licence from the government. It was the first licence of its kind to be issued in England – all the previous ones have been for beavers in enclosures.

These animals joined the beaver family that appeared in the lake in early 2024 (whether by natural dispersal or an illegal release), and our aim is now to establish a viable population. (See project updates below.) 

Why restore beavers to Purbeck?

Previously beavers were an important part of the natural ecosystem but became extinct across the UK in the 16th century due to hunting for their fur, meat and scent glands. Restoring lost species to our landscapes is an important part of our work to reverse the declines in nature.

Beaver activity can increase biodiversity by providing habitats for a wide range of species including fish, amphibians, mammals, water-loving plants and insects.

The habitat beavers need

Beavers need areas of deep, still or slow flowing fresh water to feel safe. Although Little Sea originated as a landlocked body of seawater, it has been replenished by fresh water draining off the heathland and is now classed as fresh water. Surrounded by dense woodland, it is thought to be a highly suitable habitat for beavers. 

How beavers will benefit Little Sea and beyond 

Beavers create their own wetlands and bring wildlife back to the landscape as they do so. There is evidence that a range of species (aquatic plants, amphibians, aquatic invertebrates) hugely benefit when beavers are present in a landscape. 

Little Sea is surrounded by a dense wet woodland of willow. As the beavers fell trees, they will create glades and open patches. This allows light to penetrate the canopy, attracting myriad wildlife such as dragonflies, bees, butterflies, birds and wildflowers.  The beaver activity doesn't kill the trees - as with traditional coppicing, the trees soon sprout new shoots, creating a much more dynamic woodland with trees of all ages.  

If the beaver introductions at Little Sea are successful, the aim is that they will eventually spread onto the Purbeck Heaths. They will create beaver wetlands that help retain and purify water resources and slow the flow in our rivers, reducing the risk of flooding and drought. These wetlands are also one of the best ways to capture carbon. 

A carefully managed approach

Across the UK beavers are gradually being brought back into the countryside as part of a managed approach. Beavers have been successfully reintroduced into enclosures at several National Trust sites in recent years, including Holnicote in Somerset where several kits have been born.    

We are part of the Dorset Beaver Management Group which consists of trained people who can provide expert advice, information and support, particularly to communities and landowners who are living alongside beavers. You can find out more here: www.dorsetwildlifetrust.org.uk/dorset-beaver-management-group 

For more information on the Purbeck Beaver Project, please email Gen Crisford at gen.crisford@nationaltrust.org.uk 

 

 

Follow our project updates here

January 2026

Very busy beavers!

Second-home owners

Our observations and trail camera footage show that one of the beaver families now occupy two lodges and move between them. This isn’t unusual behaviour for beavers, but we can’t help thinking they are being a little greedy in claiming the whole lake for themselves!

This family, of two adults and three kits, can regularly be seen at locations near the south of the lake (sometimes from the Rees Cox hide), and the north of the lake (from the Triangular hide).

A new winter wonderland

Peatland restoration work was scheduled to take place near Studland this autumn, including damming and infilling ditches. But this had to be postponed when we discovered a tree that had been gnawed by a beaver – trail cameras soon confirmed that a pair of beavers was already atwork there! They have turned a small stream into an open wetland, which will provide great habitat for other water loving species, including invertebrates, small mammals, bats and birds.

One of the beavers was quickly identified as the female who previously swam to Swanage and spent some time in the Studland Water Treatment Works, so we didn’t want to move her on again. We have left them to it and will see what ideas they have for the ditch instead. 

Missing beaver

We have searched for signs of the female beaver wh lost her partner in 2025. New sporadic feeding signs have been discovered around the original release site, where water levels dropped in the summer months. There is a chance that this could be her, or it could be the other Little Sea beavers exploring the area. Hopefully we’ll be able to confirm when the lighter evenings make observations easier. Until we have more conclusive evidence, we won’t be releasing a new male to join her.

Feeding signs

In the areas where beavers are active, they’ve been primarily feeding on willow and birch trees. Since last summer, we started to see the first signs of feeding on an oak tree by the Rees Cox hide near Knoll Beach (pictured above). This has now been felled and provides a great opportunity for visitors to see the beaver teeth marks in the trunk.

Flood prevention

We had noted that the beavers were passing under Ferry Road using four culverts which are designed to let water pass under the road and so prevent flooding. To avoid the beavers damming these culverts, we have installed grilles that allow the beavers to pass through but not when they are carrying sticks.  

Sharing beaver expertise

Almost 50 people, including staff from local organisations, volunteers and residents, attended beaver management training recently. They learnt about the impacts of beaver activity and how to apply the protected species guidance to their management. This will enable them to help to advise other landowners who are affected by beavers.  

Volunteering for beavers

We have recently expanded our hard-working beaver monitoring volunteer group with three new members. Our volunteers trawl through hours and hours of beaver footage to keep track of their activities, put out and collect cameras from boggy wetlands, and go out looking for feeding signs. We are keeping this group small while we learn but we will need to add more people over the coming months. If you are interested in joining us, please get in touch.

Next steps

We are unlikely to release more beaver pairs at Little Sea due to the drought impacts we saw last summer.  Although an extreme drought event, with climate change it may become a more regular occurrence. But we might release individual animals to pair up with the kits of our existing population – the first of these kits will reach maturity next summer.

We are preparing for the moment when we can release more beaver pairs across other suitable areas in the Purbeck Heaths National Nature Reserve. This will allow us to increase the genetic diversity of the Purbeck population. We are hoping to do this in autumn 2026.

A Eurasian beaver swims towards the camera at Holnicote Estate, Somerset
Beaver swimming | © National Trust Images / Nick Upton
Oak tree that's been felled by a beaver, the top having fallen into the edge of a lake.
Tree felled by a beaver at Little Sea | © Terry Bagley
A view of visitors walking along Knoll Beach from the dunes at Studland Bay, Dorset

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