The empirical modeling of an ecosystem |
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Authors: | Robert E. Ulanowicz David A. Flemer Donald R. Heinle Rogers T. Huff |
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Affiliation: | Center for Environmental and Estuarine Studies, University of Maryland, P.O. Box 38, Solomons, Md. 20688 U.S.A. |
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Abstract: | The authors have endeavored to create a verified a-posteriori model of a planktonic ecosystem. Verification of an empirically derived set of first-order, quadratic differential equations proved elusive due to the sensitivity of the model system to changes in initial conditions. Efforts to verify a similarly derived set of linear differential equations were more encouraging, yielding reasonable behavior for half of the ten ecosystem compartments modeled. The well-behaved species models gave indications as to the rate-controlling process in the ecosystem. |
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