作者: Michel Loreau
DOI: 10.1007/978-3-642-78972-4_6
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摘要: The exponential increase of human activities has reached the point where man alters natural environment on a global scale and threatens unintentionally to drive extinction half species with which he shares his planet within century; that is, at rate about million times greater than new are formed (May 1988). most direct cause is destruction their habitat, but even in protected habitats indirect factors, notably atmospheric or water pollution climate change, might lead profound changes plant animal communities.