Author
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RASTETTER, E |
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ABER, J |
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Peters, Debra |
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OJIMA, D |
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BURKE, I |
Submitted to: Bioscience
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 10/2/2002 Publication Date: 1/1/2003 Citation: RASTETTER, E.B., ABER, J.D., PETERS, D.C., OJIMA, D.S., BURKE, I. USING MECHANISTIC MODELS TO SCALE ECOLOGICAL PROCESSES ACROSS SPACE AND TIME. BIOSCIENCE. 2003. V. 53(1). P. 68-76. Interpretive Summary: Human activities affect the natural environment at local to global scales. To understand these effects, knowledge derived from short-term studies on small plots needs to be projected to much broader spatial and temporal scales. One way to project short-term, plot- scale knowledge to broader scales is to embed that knowledge in a mechanistic model of the ecosystem. The National Science Foundation's Long-Term Ecological Research (LTER) program makes two vital contributions to this type of modeling effort: (1) a commitment to multidisciplinary research at individual sites, which results in a broad range of mutually consistent data, and (2) long-term data sets essential for estimating rate constants for slower ecosystem processes that dominate long-term ecosystems dynamics. In this paper, we present four examples of how a mechanistic approach to modeling ecological processes can be used to make projections to broader scales. The models are all applied to sites in the LTER network. Technical Abstract: Human activities affect the natural environment at local to global scales. To understand these effects, knowledge derived from short-term studies on small plots needs to be projected to much broader spatial and temporal scales. One way to project short-term, plot- scale knowledge to broader scales is to embed that knowledge in a mechanistic model of the ecosystem. The National Science Foundation's Long-Term Ecological Research (LTER) program makes two vital contributions to this type of modeling effort: (1) a commitment to multidisciplinary research at individual sites, which results in a broad range of mutually consistent data, and (2) long-term data sets essential for estimating rate constants for slower ecosystem processes that dominate long-term ecosystems dynamics. In this paper, we present four examples of how a mechanistic approach to modeling ecological processes can be used to make projections to broader scales. The models are all applied to sites in the LTER network. |