Title: A hierarchical framework of aquatic ecological units in North America (Nearctic Zone).
Author: Maxwell, James R.; Edwards, Clayton J.; Jensen, Mark E.; Paustian, Steven J.; Parrott, Harry; Hill, Donley M.;
Source: General Technical Report NC-176. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: General Technical Report (GTR)
Description: Proposes a framework for classifying and mapping aquatic systems at various scales using ecologically significant physical and biological criteria. Classification and mapping concepts follow tenets of hierarchical theory, pattern recognition, and driving variables. Criteria are provided for the hierarchical classification and mapping of aquatic ecological units of riverine, lacustrine, and ground-water systems within their geoclimatic and watershed settings. Some hydrogeomorphic criteria for classifying wetlands are also proposed.
Keywords: aquatic ecology, hierarchical classification, watershed, fish, mussels, streams, rivers, ground water, wetlands, lakes
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Maxwell, James R.; Edwards, Clayton J.; Jensen, Mark E.; Paustian, Steven J.; Parrott, Harry; Hill, Donley M. 1995. A hierarchical framework of aquatic ecological units in North America (Nearctic Zone). General Technical Report NC-176. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
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