Issues in Risk Assessment (1993) / Chapter Skim
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Appendix G Contemplations on Ecological Risk Assessment
Appendix G Contemplations on Ecological Risk Assessment
Pages 337-342
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Please use the print version of this publication as the authoritative version for attribution. Appendix G Contemplations on Ecological Risk Assessment THOMAS E
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The rare species within an ecosystem usually play only a small role in an ecosystem's function. A focus on ecosystem function in risk assessments of ecosystems results in an assessment based on the few species that contribute the most to ecosystem function.
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This presents the term keystone species in a new, expanded light. The question of what is sufficient evidence for action is central in the business of ecological risk assessment.
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That puts a tremendous premium on sound risk assessment, on communication, and on priority-setting. EPA's effort to set priorities, giving great emphasis to problems of substantial spatial and time dimensions, is an extremely important exercise -- essentially ecological risk assessment on a planetary scale.
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341 to go. From the tidewater to the ozone layer, ecological risk assessment has a historical priorities as reflected by EPA's budget.
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Please use the print version of this publication as the authoritative version for attribution.APPENDIX G 342
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