Introducing my new blog The Cultural Wilderness. This will cover topics more directly related to conservation, forestry, and other environmental science topics. This is my inaugural post, a review of Fred Pearce’s book on invasive species The New Wild. Enjoy!
Book review: The New Wild: Why invasive species will be nature’s salvation by Fred Pearce
Icon Books 2015
In 1910 New Zealand’s great botanist Leonard Cochayne described the dramatic change in plant communities which had occurred since the first visit of Captain Cook to the country in 1769 (1). Some 560 new species from Europe, Africa and elsewhere had by become established by then, with half of them common throughout the country from the coasts to the highest mountains:
At first thought, the idea of 560 different sorts of plants- some of them the most aggressive weeds in Europe- having not only been loosed to do their will, but also having established a secure footing, would lead to the conclusion that, if not the flora of New Zealand, at any rate the primitive vegetation was doomed. No conclusion could be more incorrect. Were it not that man has changed, and is changing, the face of nature by means of his farming operations, his grazing animals, his fires, his drains, and his intensive exploitation of rain forest and flax swamp, the host of foreign plant invaders would be powerless- the indigenous plants, attuned to the special life conditions f their native land, would laugh these aliens to scorn. Why, even now, when the introduced plants have man as their potent ally, 66 percent of the species are rare or local, 40 percent being so rare as to be negligible, while merely 34 percent can be classed as extremely common, common, or fairly common, these being taken together. But these percentages do not emphasise the real state of affairs, for many of the commoner plants are confined to sides of toads, neglected building sites, and rubbish heaps- in short, to “waste ground” as it is called- and there are many other species restricted to cultivated land. In fact, probably only about 100 species are established on land where the vegetation would be exposed to modification only by grazing, fire, and other causes due to the indirect action of man.
The warfare, indeed, between the plant inhabitants of primitive New Zealand and the alien invaders is waged almost entirely under conditions where man takes a powerful hand, for, except for certain rock, stony debris, and water-plant formations, no primitive plant community has been desecrated by a single foreign invader. This is a very different version of the story from that even yet current in biological literature, where it is affirmed ad nauseum that the New Zealand vegetation is powerless when it comes into competition with the European plants, which by natural selection have become the very elite of the weed world.
Cochayne’s observations made over a hundred years ago are almost identical to those made forcefully in Fred Pearce’s provocative new book which takes to task invasion biology– the view that non-native species are generally “invasive”, constituting one of the greatest threats to biodiversity and ecosystem health, and need to be controlled and where possible eradicated completely- almost at any cost.
Continue reading on my new blog The Cultural Wilderness.