Published online by Cambridge University Press: 04 August 2010
Introduction
If nature had a conscience she would name Homo sapiens her number one pest. Which other species, of the now assumed 10–30 million that inhabit the Earth, has caused more destruction, changed the natural landscape more deeply and extensively, exterminated more of the other species, or killed more of their own, than humans? But, ironically, we humans are, as far as it is known, the only species with a conscience. That conscience gives us the ability to classify and name the other millions of species. We readily call a “pest” any other living organism whose life system conflicts with our own interests, economy, health, comfort, or simply prejudice. The concept of a “pest” is entirely anthropocentric. There are no pests in nature in the absence of humans. From a human perspective, an organism becomes a pest when it causes injury to cultivated plants in fields, gardens, and parks, or to the products of those plants (seeds, bulbs, tubers) in storage. Outside agricultural settings, organisms become pests if they affect structures built to serve human needs, are a nuisance, or transmit pathogenic diseases to humans and their domestic animals.
It is our intention in this chapter to consider the roles of humans, as an animal species, in the global ecology and, by narrowing the focus, to project those roles into integrated pest management (IPM). Within a global context, humans often are lethal pests and the rest of nature is their prey.
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