Region of influence method improves macroinvertebrate predictive models in Maryland

Yin-Phan Tsang, Gary K. Felton, Glenn E. Moglen and Michael Paul

Ecological Modelling, 2011, vol. 222, issue 19, 3473-3485

Abstract: Stream biological assessment reflects not just conventional water quality, but an environmental quality that represents the integrity of the stream ecosystem. In Britain, Australia and the United States, macroinvertebrate predictive models were built and applied to stream assessment by employing multivariate analysis. There were variations in these models, where adaptations were made for different regions, but the philosophy underlying the models was similar: employ site classification to predict expected assemblage. Taxon assemblage is predicted from reference groups with similar stream features; these resulting models are RIVPACS-style models. Because every site has to belong to one group in the classification process, each reference group might include some dissimilar sites, and their dissimilarity in taxon assemblage impaired the results of taxon predictions from these models. To avoid this limitation, this study employed a Region-of-Influence-style (ROI-style) modeling method, selecting only similar reference sites and allowing each site to build its own reference group.

Keywords: RIVPACS; ANNA; Region of influence; Bioassessment; Predictive modeling (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:222:y:2011:i:19:p:3473-3485

DOI: 10.1016/j.ecolmodel.2011.08.006

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