EPA recommends the use of biological assessments as a measure of
true environmental results. The case studies presented here provide
a series of examples to illustrate the value of such information
for a variety of management and scientific uses. They are also a
part of EPA's long-term strategy to provide better assessment tools
to state and tribal program managers, to promote the adoption of
more effective and meaningful indicators of ecological condition,
and to foster the public's informed involvement in setting goals
for their resources.
Case studies are presented in the following categories:
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