Poor old Simon Cooper. He’s despairing again . Some months ago it was rewilding; now it’s beavers. He has a beaver in his bonnet (geddit). I wonder whether Si was subject to the malign influences of a cult in his youth because he tends to talk about cults and fads. He’s not alone of course. Plenty of ‘conservation-minded’ fishermen are against the reappearance of any animal that was persecuted to extinction many years ago (about 500 years in the case of beavers), hence the brouhaha over otters and cormorants.
As with his earlier comments on stocking and rewilding, Cooper is poorly informed. He believes the beavers reintroduced are an alien species, same as signal crayfish, coypu and grey squirrels. The introductions are of the Eurasian beaver, the same species once widespread in Britain. His rainbow trout comparison is therefore incorrect. Cooper goes on to wildly exaggerate the benefits claimed for beaver introductions. Perhaps he thinks this makes for a good T&S article — it doesn’t — but in this age of misinformation he has a duty to check his facts first.
An open population of beavers has only been introduced in one location in England, the River Otter in Devon (others are caged). There are two in Scotland. The Otter trial lasted five years; in 2020 it was announced the beavers could stay. Potential benefits of beavers are the recreation of wetland habitats and natural flood defences. A lengthy literature review of the current state of understanding can be found here . To be fair to Cooper, knowledge of the impact of beaver introductions is limited. The report’s author, Prof Cowx, recommends a moratorium on further introductions until impacts are better understood. Beavers are herbivores and are known for felling trees, although apparently they only construct dams when the water is shallow. Inevitably they can affect the balance of fisheries in which native species have dwindled to a few wild trout and some waterfowl.
But I doubt Simon Cooper has much to worry about. I think it unlikely beavers will make a reappearance on chalk streams in the foreseeable future. His business interests are safe, his main concern I believe. Incidentally, in my last post on his polemics, I speculated that he drives a polluting four-wheel drive truck. And so he does, Toyota Hilux, 23 mpg:

I can’t really see him driving round fence stakes and heavy gear from his posh pad in Nether Wallop. If he doesn’t need such heavy wheels, how about swapping for something less polluting. It may be less Hampshire but he’d be doing his bit for the environment, on which his livelihood depends. Or does that sound like madness too?