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by Litost 540 days ago
There's been numerous attempts at removing invasives, as you point out some successful, some not.

I found this one of New Zealand, which has particularly unique habitats, trying to remove rats (and others) to save 200 bird species to be particularly mind blowing [1].

Having just done a Rewilding course, my position has shifted a bit and I'm now in two minds about both the NZ experiment and ones like you mention. Much as yours and the other comments say lazy people spreading accidently, or historically, more deliberately non-native species at face value seems really destructive.

But as the Rewilding course pointed out, weeds generally thrive in areas of bare earth and similar niches where ecosystems are degraded and often then are outcompeted as part of succession, but during that time can often provide great food sources for say pollinators (e.g. ragwort).

I'm going to make a bit of an uncomfortable leap here and say, does a similar argument apply to invasives? Nature is nothing if not both resourceful and determined and it also (for better or worse) created us. I've yet to see many compelling reasons as for why that happended (from a design perspective), but it has to be said we're nothing if not the ultimate (so far) extension to that, hopping around the planet spreading species everywhere.

Is this, ironically, how nature "addresses" climate change by having the same actors that helped create it, also be the best actors to mitigate it. If climate change is going to cause such massive disruption to ecosystems, is the human quick spreading of invasives much better at bringing species to places they might now thrive and build future resilience than the slower method non-human forces can manage?

I have to say I don't feel comfortable saying that and I'm not an ecologist, but maybe, bringing this back to the main topic, that's part of a wider Rewilding discussion?

[1] - https://www.science.org/content/article/new-zealand-s-mind-b...