Because the beaver isn't just an animal; it's an ecosystem!

Category: Devon Beavers


August 12th is a prodigious day. It’s the day that in 1957 in the little naval hospital of Portsmouth England, Jon Ridler was born. In case the name sounds familiar he is the treasurer of Worth A Dam, the man of 100 tasks at the beaver festival including beaver tours, and my husband of lo, these many years. Happy Birthday Jon!

Jon was educated in England and enjoyed the life of a navy dental surgeon’s son living for a while in Malaysia, Gibraltar and some other places the sun never sets. His home base was always boarding school in Truro England though, down the peninsula of Cornwall near by where his grandfather retired, and oh by the way where some beavers were introduced after 400 years.

I mention this because Jon became an American citizen recently (because of all the winning obviously) and clearly England is so proud of their native son that they celebrated by making recently granting the Devon beavers legal status. Devon is at the top of Cornwall and about 100 miles away from where jon spent the vast majority of his early life. When the pilgrims sailed for America they boldly left from Plymouth which is the very tippy toes of Cornwall. Now beavers have been given a toe-hold.

Beaver families win legal ‘right to remain’

Fifteen families of beavers have been given the permanent “right to remain” on the River Otter in East Devon. The decision was made by the government following a five-year study by the Devon Wildlife Trust into beavers’ impact on the local environment.

The Trust called it “the most ground-breaking government decision for England’s wildlife for a generation”. It’s the first time an extinct native mammal has been given government backing to be reintroduced in England.

Environment minister Rebecca Pow said that in the future they could be considered a “public good” and farmers and landowners would be paid to have them on their land.

Beavers have the power to change entire landscapes. They feel safer in deep water, so have become master makers of dams and pools.

The River Otter beaver trial showed that the animals’ skill replenished and enhanced the ecology of the river catchment in East Devon.

They increased the “fish biomass”, and improved the water quality. This meant more food for otters – beavers are herbivores – and clearer and cleaner water in which kingfishers could flourish.

Their dams worked as natural flood-defences, helping to reduce the risk of homes flooding downstream.

Yes they do! Whoo whoo. There have been a few MILLION headlines about this story but I thought it could wait until Jon’s birthday, for obvious reasons.

The evidence gathered by researchers during the trial helped the Department for Environment, Food and Rural Affairs to make what it called its “pioneering” decision to give the beavers the right to live, roam, and reproduce on the river.

Beavers were hunted to extinction 400 years ago for their meat, furry water-resistant pelts, and a substance they secrete called castoreum, used in food, medicine and perfume.

In 2013 video evidence emerged of a beaver with young on the River Otter, near Ottery St Mary. It was the conclusive proof of the first wild breeding beaver population in England.

It was a mystery how they came to be there. Some suspect that the creatures were illegally released by wildlife activists who, on social media, are called “beaver bombers”.

The beavers faced being removed. However, the Devon Wildlife Trust, working with the University of Exeter, Clinton Devon Estates, and the Derek Gow Consultancy, won a five-year licence to study it.

Now there are at least 50 adults and kits on the river – and they are there to stay.

Peter Burgess, director of conservation at DWT, said: “This is the most ground-breaking government decision for England’s wildlife for a generation. Beavers are nature’s engineers and have the unrivalled ability to breathe new life into our rivers.

Congratulations Devon! And beavers all over England that definitely got one webbed paw in the door! And congratulations to Jon who I have loved for 39 years and who made all this crazy beaver madness possible. Wait until I show you his awesome present tomorrow.


I’ve been staggering with shock lately at the viral firestorm that will clearly be with us long after the NEXT festival is cancelled. There will certainly be no donations to the silent auction ever again. Because zoos and restaurants and museums will be clinging by their fingernails if indeed they manage to survive at all. It’s a dark and terrible time with no hope in sight. 

So I comforted myself on working with Chris Jones poem yesterday and was fairly happy with how it came out. Amazing what they let you do with free tools on the internet. I was even happier when he responded overwhelmed and grateful this morning. That makes a nice way to start the day.

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I’m sure this will be used by the good folks at the Beaver Trust some way soon. It’s a funny thing. I first began to communicate with Chris when I saw Derek Gow berating him affectionately on FB. Then I learned that his farm is very near where Jon went to school in Cornwall and where his grandfather retired. There are something Facebook is horrible at, but it has a few salient uses.

I was shocked to read Chris’ bio on the beaver trust. Besides being a farmer who also writes poetry he has had an impressive resume, He must be a horse of VERY MANY COLORS indeed.

Chris Jones

Chris Jones is a farmer and ecologist based in Mid Cornwall. He has worked as a policeman in Africa, as a forester in SW England, as a drilling fluids engineer in the North Sea, Middle East and Africa, and as a theme running throughout as a farmer in Cornwall. He has been interested in the idea of reintroducing beavers to the UK for many years, and has been practically involved setting up and running the Cornwall Beaver Project with Cornwall Wildlife Trust and Exeter University since 2014.


More news about the effects of the most studied beavers in the history of the species.

Beavers! Investigation of the Geomorphic effects of Beaver reintroduction using High Resolution Topographic surveys

In March, Dr Mark Smith and Dr Megan Klaar returned to Cropton Forest, North Yorkshire to a site in which two beavers (and the later addition of two kits) were released as part of a Forestry Commission reintroduction scheme aimed at restoring natural processes and reducing flood risk in the area.

Mark and Megan had previously visited the site in March 2019, just before the beavers were introduced, and carried out a 3D high resolution topographic survey combining both Terrestrial Laser scanning and Structure-from-Motion photogrammetry. This was repeated one year on to quantify the beaver-induced changes to the environment.

Our beavers might have been the most visited in the world, but the river otter beavers are surely the most studied. Good for them. They need all the help they can get.

Not quite knowing what to expect on their return, they were amazed at how busy the industrious beavers had been.  The beavers had dug a canal to connect two pre-existing ponds and then greatly expanded the pond area by blocking the pond outlets. They also constructed a fresh dam that completely spans the river, and forces it out of the bank and onto the woodland floor (handily, directly in the location that was surveyed pre-beaver).  The changes are sure to have an impact on the local hydrology of the site as well as the geomorphology and ecology of the area.

Yup. That sounds about right. Beavers change things, that’s what they do.

Mark and Megan will carry out an additional survey next year to further determine how the beavers have been interacting with their environment, as well as teaming up with Exeter University who are monitoring the hydrology of the site.

I should do a graphic of all the research generated by a beaver. It could be the same as that inverted pyramid showing all the wildlife a beaver pond supports, only it could be researchers and hydrologists all getting funded for studying the activities of a family of beavers.

Hmmm…something to work on.

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I tend to be a glass-half-full kind of girl. And who can blame me? I’ve always been comforted by air bubbles underwater. Hear me out. It strikes me as kind of advice from the universe that says “when things look bleak, and you’re completely turned around, follow the bubble UPWARDS. Not Downwards. That little ball of floating oxygen will tell you exactly the direction you need to go to find the surface and fill your lungs with sweet air. Follow it closely and do what it does.

So remember to keep the glass half full when you see this headline,

England’s beavers move from ‘extinct’ to ‘critically endangered’

The reintroduction of beavers to parts of England has led to the species being formally recognised as ‘critically endangered’ by the International Union for Conservation of Nature, where previously they had been classified as extinct.

Well sure, it’s no heartfelt wedding vows or national anthem. But we’ll take it. I’d rather be endangered than extinct, wouldn’t you? In these dark days we have to take our good news where we find it.

Following research commissioned by wildlife regulators Natural England, Natural Resources Wales and Scottish Natural Heritage, the International Union for Conservation of Nature and Natural Resources (IUCN) last week accepted the presence of beavers in Britain.

According to the study’s lead, professor of environmental biology at Sussex University Fiona Mathews, shifting the IUCN’s status has been “highly controversial”. 

“There are lots of people who would rather not see them have any sort of listing, because once you start recognising that something is threatened, then there is an obligation to actually start doing something about that,” said Mathews.

The new status puts an onus on the international community to see these species restored, according to Mathews. In England and Scotland, introduced beaver populations are doing well, but remain small and very fragmented. 

Isn’t that great news? Sing it with me now.

I once was lost, but now am found. Was extinct, but now I’m threatened!

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I know it is wet and the sun is not sunny,
but we can have lots of good fun that is funny.

Dr.Seuss

Oh sure 7 million Californians have just been ordered to shelter in place but there is still lots of fun to be had if you’re us. Heck, who knows, beaver readership might go UP in this crisis! There’s no great loss without some small gain.

In the UK at least, beaver comeback has been greeted with good cheer in some quarters. They even grace the new National Geographic which celebrates the return of several lost species.

Welcome home: the lost English species making a comeback

The reintroduction of native species, lost for decades or even centuries from the British countryside, is at the heart of the Government’s 25-year Environment Plan. Alongside the recovery and restoration of wildlife-friendly habitats, the plan explicitly states that the reintroduction of native species is key to nature’s recovery.

A tiny corner of Cornwall is showcasing the huge potential benefits that could stem from the reintroduction of beavers to the south west of England. Hunted to extinction for their valuable fur, beavers are a keystone species with the power to transform local landscapes and provide natural solutions to major problems, such as flooding, water quality and declining biodiversity. A series of trials are currently assessing the impact of reinstating the tree-munching animals to areas of the south west, including Somerset, Devon and Cornwall. 

A lactating female beaver in the Cornwall project gorges on some brambles. Photograph by David Parkyn

Hurray! The comeback kid! That’s a great photo but honestly I can’t look at it without thinking that the photographer saw Cheryl’s iconic tree carrying photo and decided he needed to take his own. Of course this is slightly better because it proudly displays the renewable generations to come.

Carefully fenced in a two-hectare (five-acre) enclosure of plantation woodland alongside Nankilly water, near Ladock, three Cornish beavers have built effective flood and drought prevention infrastructure, cleaned water, and recreated wetland habitats rich in biodiversity. Their dams, for example, have reduced the peak flow of the stream by 30% after heavy rainfall, says Cheryl Marriott, head of nature conservation at Cornwall Wildlife Trust.

With climate change leading to more frequent extreme weather events, the opportunity to trap water upstream in areas where flooding is less of an issue, rather than let it accelerate downstream to areas where flooding is a major issue, is a huge win. Elsewhere in England, a pair of beavers reintroduced to Yorkshire’s Cropton Forest in 2019 have been suggested as a factor in preventing local flooding during Storm Dennis last month.

Yes beavers can do a whole lot of good things for you, and I’m glad England is recording every step of the way. Chris Jones really became a legendary pioneer when he agreed to try offering his farm up for beavers.

Three years into the five-year trial, Chris Jones, the farmer hosting the Cornwall beavers, said that his farm had recorded six new bird species, including water rail and green sandpiper, and three new mammals (water shrewsharvest mice and polecats).

“This has all happened on a stretch of land that is just 200 metres long, which begs the question of what would happen if we had 2,000km of beaver habitat in the south west,” he says. Jones would be delighted to see the beavers freely released, arguing that on land like his, and along the banks of many rivers and streams, the animals cause precious little, if any, loss of productive land.

Aren’t you proud of every single one of these brave pioneers pushing the beaver conversation forward? Chris Jones and Mark Elliot, Alan Puttock and Derek Gow and Paul Ramsay. They forced this into being and we are all the better for it.

And the advantages of stripping the energy out of rivers and streams brings other advantages too, adds Marriott. “Scientists have been really surprised at the reduction in agricultural pollutants in the water, such as phosphates and nitrates, as the stream leaves the beaver enclosure,” she says. 

Water backed up in ponds behind beaver dams slows to such an extent that its pollutants can sink and percolate into the soil, rather than float downstream. These ponds are also creating an environment where algae thrive, kickstarting a food chain that rises through invertebrates to birds and mammals. 

Oh yes, beavers kickstart it all. They are the original catalyst. We couldn’t agree more.

 

 

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