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Developing Relations Among Human Activities, Stressors, and Stream Ecosystem Responses and Linkage in Integrated Regional, Multi-Stressor Models

This project will relate human activities to a suite of common   stressors (nutrients, sediments, dissolved oxygen, temperature, and   hydrologic variability) in streams, to relate those stressors to the   natural fisheries capital as well as ecological integrity of algal,   invertebrate, and fish assemblages. It will also link stressor-  response models to a system of land use, ecological, hydrologic, and   water quality models (e.g., LTM, BASINS, QUAL2E, and AQUATOX) that   can be used in ecosystem management. The investigators will use   extensive data from over 12  Michigan streams that has been   developed over the last 8 years. Standard survey approaches with one-  time sampling do not adequately characterize many stressors in   streams because temporal variability is too great to build   management models and distinguish the interactive effects among   human activities on stressors and stressors on responses.     Thus, researchers will collect new data to better characterize   target stressors by frequently sampling over periods from hours to   days, months, and years, depending on the scale of process studied.   This has proven to be the key to developing precise stressor-  response relations. Linear and non-linear relations among human   activities, stressors, and responses will be characterized and   evaluated for thresholds. Investigators will evaluate the efficacy   of best management practices and test hypotheses to assess   progressive degradation in multi-trophic level, ecological   conditions with increasing human disturbance so that predictions can   be used to establish guidelines for tiered aquatic life and stressor   criteria.    (stressor); (stressors); (multi-stressor); (multi-stressors); (risk   assessment); (indicators); (indicator); (restoration); (stress   response); (stress responses)

In progress
Start Date
End Date
Jan R. StevensonPrincipal Investigator
Associated with 1 projects
Michael WileyResearcher
Associated with 1 projects
David HyndmanResearcher
Associated with 1 projects
Bryan PijanowskiResearcher
Associated with 1 projects
Paul W. SeelbachResearcher
Associated with 1 projects

Funding 21 projects for a total of $7,345,444.00
Scope of Study
Field Investigation
Literature / Existing Data
Scale of Phenomena
Impact of Pollutants
Nutrients, Including Phosphorus
State Province
Purpose of Project
Loadings Determination
Trend Assessment
Resource Being Monitored
Hydrologic / Hydrometric / Climatic
Urban Land Use
Annex Numbers
Remedial Action Plans and Lakewide Management Plans

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