The major obstacle facing the biological approach is determining the baseline characteristics for biological communities for each type of water bodies. ... Ecology and Ecosystems An ecosystem is defined as place having unique physical features, encompassing air, water, and land, and habitats supporting plant and animal life. ... Impacts on the physical habitat such as sedimentation from stormwater runoff and the effects of physical or structural habitat alterations (e.g., dredging, filling, channelization) can also be detected. ... Ecological integrity is a combination of three com...

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• Grade Level: Graduate