Daron Williams wrote:Victor – Thanks for your comment! I agree with your comment though I’m curious what your thoughts are about restoring the wilds in a very changed world. I just went to a restoration symposium that focused on how our historical baseline for what nature should be may not be valid in our changed world. One view was that we needed to allow for hybrid systems – which seems to be what is happening naturally in a lot of places to various levels.
I do control/remove invasive plants if they are forming a dense monoculture and I try to add native plants where I can but at the same time I have become more accepting of leaving non-native plants even in wild areas as long as they don’t form a monoculture. Really there are only a small number in my area that do that.
Your second comment covers some of this, but I would be interested if you have any other thoughts on this topic.
Lorne Green used to have a nature program called "New Wilderness", based on the notion that we are not going to find any more pristine "wilderness", that we have to conceive of it, perceive it, and act according to the realization that things have changed.
Environmentalists now are increasingly concentrating on ecosystem health rather than individual species. If we manage to shepherd a healthy ecosystem to develop, it is going to contain "invasive" species, and it will NEVER be a reproduction of what was here in 1491. Let's not forget that, to concentrate just on the fauna, the elk, moose, grey wolf, bison, grizzly were all "invasive species" who migrated into North America through Beringia. The wild horses and camels of Eurasia descended from immigrants from America, as the migrations went in both directions.
Invasive species who have detrimental effects on
native ones
should indeed by removed, as long as we remember that there is no attainable pristine state to which we should aspire. Ecosystem health would be far preferable to the ecosystem degradation we now have, and if that can be achieved, I will not mind if there are invasive species involved (not Japanese beetles, though, PLEASE).
New syntheses will have to evolve, as with very high populations we are not going to simply remove humans from large portions of the environment to achieve some sort of "natural" state. Perhaps one thing we'll have to do is eliminate the distinction of "wild" and "civilized". We are going to have to live WITH nature, not walled off from it, not in a separate reality while "nature" lives in national parks or forests.
Here in the central Virginia piedmont, we have woods severely degraded (in terms of species diversity), depleted tobacco-ravaged soil, and so on. I maintain that we CAN and must strive to introduce species to increase the diversity. For fauna, this can include maintaining snags and fallen
wood, as has been discussed in here. We are doing that and providing houses for birds. For flora, it may require transplanting species from healthier forests (in our case, those in the Blue Ridge a few miles away). We have tried that with mixed success. It is a longterm process and how GREAT it would be if we had
local, state and federal govts encouraging and enabling more habit restoration and re-introductions to create diverse healthy ecosystems.
We can no longer think of "the wild" and "wilderness" as we once could. We're in the Anthropocene now. Homo sapiens is managing ecosystems worldwide. We need enhanced efforts to do this right! Meanwhile, as individuals... plant
trees, put up birdhouses, enhance habitat where we can.
These are some opinions off the top of my head. Certainly these are very productive conversations to have and I hope to see these concerns enter mainstream thinking more in the future.