Quote:
Originally Posted by Wild-Woman 
I suppose the food chain could be disrupted if a migrant species coped with our climate and started munching their way through green plants that should be munched by ours!
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The way I see it is that our climate is changing and there will be a readjustment in our wildlife because of that and we're going to have to learn to live wth it. I think there are still ways, if we choose to adopt them, in which we can minimise the change but I don't think we can stop it happening altogether.
As a consequence we're going to lose some species and gain others but this has always been the case. Things like Collared Dove, Little Egret, Cetti's Warbler have all spread and become established and accepted here. Speckled Wood butterflies have been spreading north with a warming climate for many years and I'm sure there are lots of other examples. Perhaps we should just embrace these changes, revel in the new wildlife and make sure that we all keep our own records of what's happening so that future generations, looking back at turbulent times with the benefit of hindsight, can shake their heads and wonder at the folly of our generation.