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Fig. 4. Conceptual illustration of Biological Condition or Functional Integrity for two ecosystems (A & B) with differing vulnerabilities to perturbation. Source: Modified from Karr (2000) and Loucks (2000). Note: Sustainability and Resiliency thresholds indicate approximate indices below which continued ecosystem perturbation under specific uses is not sustainable and the capacity for resiliency is severely compromised.
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