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Research In Support of Refined Risk Assessments To Evaluate Ecological Risk

Ingrid M. Sunzenauer and the EFED Implementation Team

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Overview of Presentation

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Why Revise the Ecological Assessment Process?

Provide answers to risk management questions that could not be addressed in the past --

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How Did We Begin?

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What Does This New Assessment Scheme Look Like?

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What Did We do Next?

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Where Are The Models Now?

Where Are The Models Now?
TaskTime Period
Complete developmentDec 2002
Beta-testSpring / Winter 2003
Sap reviewJuly 2003
"Finalize" models and implementFall 2003
Continue model development
to address repro effects, pop impacts, etc.
2003 +

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Highlights of the Terrestrial Model

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Terrestrial Exposure Distributions

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Example of Terrestrial Results

graphic of red-winged blackbird mortality curve - plotting y axis of cumulative probability vs. x-axis of minimum number of dead from 20-bird groups

Example of Terrestrial Results
95% probability that red-wing mortality will be greater than 9 out of 20 individuals (45% mortality).
There is a 5% probability that mortality will be greater than 80%.

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Looking to the Future

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Some Research Area Ex's: Terrestrial Exposure Model

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Some Aquatic Research Area Ex's

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Proposed Approach to Address Uncertainties

Partner with stakeholders!

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Current Efforts

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Options to Further Address Research Areas

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Next Steps

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Implementation Team

Position TitleName
Chair Ingrid Sunzenauer, M.S.
Aquatic Team Donna Randall, M.S. (Lead)
James Lin, Ph.D.
Tim Bargar, Ph.D.
Terrestrial Team Ed Fite, M.S. (Lead)
Ed Odenkirchen, Ph.D.
Additional Supporting Team Members Tim Barry, Sc.D. (Office of the Administrator)
Dirk Young, Ph.D.
Douglas Urban, M.S.
Stephanie Irene, Ph.D.
David Farrar, M.S.
Former Team Members Kathryn Gallagher, Ph.D.
Les Touart, Ph.D.
Tech Team Members

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Web Site

http://www.epa.gov/pesticides/ecosystem/index.htm

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