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Case Study: Analysis of scale on boosted regression tree fish habitat models
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Recent modeling efforts at the regional and FHP scale have indicated that smaller-scale models are likely necessary to pinpoint localized stressors. From discussions with experienced modelers and fishery professionals, HUC8 watersheds were agreed upon as the most appropriate scale.
This report summarizes a case study that demonstrates the effect of scale on the assignment of stressors from predictive BRT models. Specifically, we modeled the same response at three different scales and for two separate HUC8 watersheds
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Projects
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Downstream Strategies Project
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Public working documents
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Midwest and Great Plains Assessment Models Data Summary
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The top five anthropogenic and top five natural variables from each model for each FHP and a regional model are summarized in this brief. This summary pinpoints only those variables that were most important in structuring the responses for each model. Across all models, each variable is tabulated for the number of times it is occurs as one of the most influential (top 5 of each category). This analysis presents the relative usefulness of the most important variables in structuring regional- and fhp-scale model responses
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Projects
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Downstream Strategies Project
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Public working documents
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Project Overview Brochure
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A two page brochure providing an overview of the NALCC aquatic habitat assessment project.
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Projects
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Downstream Strategies Project
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For Review
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This folder contains items for review prior to distribution by the Info Management Team.
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Teams
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Information Management Team
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Information Management Team
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The Information Management Team works on NALCC issues surrounding IT and GIS. Starting with a Needs Assessment, we are now moving onto the implementation phase.
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Teams