A fine Elizabeth Kolbert piece on insect decline.
snip
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Insects are, of course, also vital. They’re by far the largest class of animals on Earth, with roughly a million named species and probably four times that many awaiting identification. (Robert May, an Australian scientist who helped develop the field of theoretical ecology, once noted, “To a first approximation, all species are insects.”) They support most terrestrial food chains, serve as the planet’s chief pollinators, and act as crucial decomposers. Goulson quotes Wilson’s observation: “If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed 10,000 years ago. If insects were to vanish, the environment would collapse into chaos.”
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