John Mecklin
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The June issue of Scientific American contains a fascinating and nuanced argument in favor of Pleistocene rewilding — that is, the movement to bring back the horses, camels, cheetahs, lions, elephants and other megafauna that roamed North America (and particularly the West) some 13,000 years ago, but were eradicated, apparently by human hunting. This repopulation effort is not the crazy notion that it might seem on the surface. As the author, Cornell University research biologist C. Josh Donlan, notes:
Pleistocene rewilding is not about recreating exactly some past state. Rather it is about restoring the kinds of species interactions that sustain thriving ecosystems. Giant tortoises, horses, camels, cheetahs, elephants and lions: they were all here, and they helped to shape North American ecosystems. Either the same species or closely related species are available for introduction as proxies, and many are already in captivity in the U.S. In essence, Pleistocene rewilding would help change the underlying premise of conservation biology from limiting extinction to actively restoring natural processes …
The long-term vision includes a vast, securely fenced ecological history park, encompassing thousands of square miles, where horses camels, elephants and large carnivores would roam. As happens now in Africa and regions surrounding some U.S. national parks, the ecological history park would not only attract ecotourists but would also provide jobs related both to park management and to tourism.
I can’t do full justice here to the sophisticated case Donlan makes for the ecological, educational and financial benefits of rewilding, and, unfortunately, I can’t link to the piece, either. It’s behind SciAm’s subscription wall. So you’ll have to buy a copy of the June issue or subscribe at www.sciam.com to read the piece. I recommend the latter course; if you have even a passing interest in science, Scientific American is consistently satisfying and, I’ve heard, it’s an unmistakable signal of virility and/or fertility to science-inflected members of the opposite sex.