You talk a lot about the fact we are on an island. Indeed we are and this has contributed to our biodiversity. I just don’t think it’s very relevant with the boar issue .....Our fragmented woodland and high human population might be more of an issue. However, as many people have stated, parts of mainland Europe are very similar (in terms of land use) and still are home to healthy boar numbers. Sure, they are hunted (like deer are here), but they co-exist among most people with few problems. .
My point about trhe island thing is that it interacts with the heavily fragmented thing, in that the populations of species that we are trying to conserve have only a finite population. This is much more finite than on the Continent, which all adds up to quite a different situation. All of the problems are much more acute here, and everything is under much more potential pressure. Our e.g. Wrens or Blackbirds are not the same as those in France or Germany. Even if they look the same, they are from different populations, and differences in behaviour (e.g. dispersal) do exist between them.
Rightly or wrongly, the boars are here now. Until I see clear scientific evidence they are having a negative effect on our woodland ecology I will welcome their expansion. .
That is a common statement, but it is also the most reckless. By the time you have your evidence, it will be too late. We can already estimate what potnetial problems might be, and that's the kind of thing we should be basing decisions on. If a bunch of bears escaped in Kent, we could guess what might happen, so would you wait until you had evidence of that too?
I do not care so much about ... unnatural crops of Bluebells being destroyed. .
But what is "natural"? Nothing in the UK is natural. Our populations of Blue Tits are 'unnaturally' high, hedgerows are unnatural, Minsmere is unnatural. Shall we not bother conserving them? Are they all worthless unless they look like 8000BC?
The point I’m trying to make is you can not simply eradicate/fail to conserve any native creature that causes conflict (real or perceived) with humans. .
I'm not talking about humans, although that is a significant factor that should not be ignored (I know it gets less truck on here from the misanthropes than it would at Defra - some people dislike people and wish there were a lot less of them, and put the badgers first). My concerns are about the damage to the woodland ecosystems that we have left, and that we are trying to get our head around in order to conserve due the populations of many species crashing. There are big problems with large mammals in fragmented woodlands, as they have a big concentrated effect. Another even bigger rooting mammal is, franky, something that I don't think many small British woods can cope with without suffering damage to their structure and biodiversity. This is not the kind of forest that boars evolved with, it looks totally different and has a different species composition. It is impossible for it to ever become 'natural' (pre-human) again, and boars are not going to make that happen. Talk of what's 'natural' is not only arbitrary (what point in time are you referring to?) it's whimsical (nobody knows what 'natural' really looked like). It;s also worth pointing out that, while boars were 'officially' eradicated around the 16th Century, this was only from Royal hunting parks where they were enclosed and heavily protected. They were probably lost from the general countryside much much earlier.
Finally, I have no idea if you have ever visited any of the areas of Kent or the Forest of Dean where the Wild Boar live. I was certainly surprised by how little visible damage I could see. In fact, apart from some well used paths (similar to a Badger’s), some hoof prints, and some rooting (on grass path), there was little evidence they were there.
They haven't been there long, and not in any great numbers. But I am familiar with areas where Boars exist on the Continent, in much more primitive forests than occur here, and even there you see areas several hundred sq m that look like they've been ploughed. There is much less understorey and herb layer.
But I guess we're going to see the experiment played out. My guess is that in 50 years we'll be cursing our misplaced enthusiasm now, just like we are with muntjac and Fallow deer, and boars will become a significant management issue. It's not fun seeing piles of gralloched deer innards lying on woodland rides after a cull, some with foetuses, but that's the reality of trying to manage these large mammals.