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Integrated Ecosystem Response Model (IERM2) Development and Documentation

Joseph DePinto;Scudder Mackey, Todd Redder
The Ecosystem Technical Working Group was tasked with informing the IUGLS discussions and estimates on potential ecological impacts of water level regulation plans and scenarios. In order to forecast and assess the potential ecosystem impacts, an Integrated Ecological Response Model (IERM2) for the Upper Great Lakes was developed. This project relates to the development of the IERM2 and an outgrowth of the model – the Coping Zone Calculator – that forms the environmental component of the IUGLS’s Shared Vision Model (SVM). This framework was used within the SVM to support the ongoing IUGLS decision process and Adaptive Management planning. The primary objective of the IERM2 framework was to synthesize and integrate available ecological research and data into a tool that can quantify the relationships between alterations of water level regime (either natural or human regulated) and key indicators of the ecological response of coastal and nearshore ecosystems in the Upper Great Lakes.
Lessons Learned from Ecological Modeling in the LOSLR Study
Integrated Ecological Response Model Contextual Overview
Documentation of the Integrated Ecological Response Model
Guidance for Evaluating Ecological Responses in the SVM
Integrated Ecological Response Model (Installation Files)
Integrated Ecological Response Model (Source Code)
Integrated Ecological Response Model Coping Zone Calculator
Additional Data and Information

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Supporting Content (Show)
Main Topics
Lake Superior Regulation
Questions We Asked
Can a regulation plan be designed to perform better than Plan 1977A?
What are the main benefits of the new regulation plan?
View all 4 questions we asked
Does the plan reduce environmental impacts?
How vulnerable are interest groups to extremes?
Key Findings
Nine decision criteria were used to evaluate regulation plans
Plan 2012 avoids serious impacts to Lake Sturgeon breeding habitat
Approve Lake Superior Plan 2012
Apply adaptive management to address extremes
Ecosystems Evaluation