Titlebook: Ecotoxicology: Problems and Approaches; Simon A. Levin,John R. Kelly,Kenneth D. Kimball Textbook 1989 Springer-Verlag New York Inc. 1989 B

敲詐

Textbook 1989 bases for ecotoxicology are, how- ever, in their infancy, and thus still growing with new experiences. In- deed, the only robust generalization for research on different ecosystems and different chemical stresses seems to be a recognition of the necessity of an ecosystem perspective as focus for as

SENT

Indicators of Ecosystem Response and Recoveryuently, instances of unexpected, adverse effects on the environment from a particular human activity continue to intermingle with instances of expensive over-protection from other activities. In principle, ecological risk assessment would minimize these problems.

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美麗的寫

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prosthesis

,Ein Pl?doyer für bezahlbares Wohnen,uently, instances of unexpected, adverse effects on the environment from a particular human activity continue to intermingle with instances of expensive over-protection from other activities. In principle, ecological risk assessment would minimize these problems.

disparage

預(yù)感

,Starker Geist in einem starken K?rper,l and Howarth 1984; National Academy of Sciences 1985). However, the potential for ecological damage is much greater than this, and it is the less obvious but potentially more far-reaching problems that are emphasized here. Portions of this manuscript have been previously published as part of a site

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0172-6226 tion for research on different ecosystems and different chemical stresses seems to be a recognition of the necessity of an ecosystem perspective as focus for as978-1-4612-8138-2978-1-4612-3520-0Series ISSN 0172-6226