1. Department of Geology & Earth System Science Interdisciplinary Center University of Maryland College Park Maryland USA
2. Pacific Ecological Systems Division US Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessment Corvallis Oregon USA
3. Cary Institute of Ecosystem Studies Millbrook New York USA
4. University of Connecticut Storrs Connecticut USA
5. Occoquan Watershed Monitoring Laboratory, The Charles E. Via Jr Department of Civil and Environmental Engineering Virginia Tech Manassas Virginia USA
6. Center for Coastal Studies, Virginia Tech Blacksburg Virginia USA
7. Chatham University Gibsonia Pennsylvania USA
8. Department of Environmental Science and Technology University of Maryland College Park Maryland USA
9. Department of Environmental Sciences University of Virginia Charlottesville Virginia USA
10. Environmental Science & Policy Program University of Maryland College Park Maryland USA
11. Department of Biology Georgetown University Washington District of Columbia USA
12. Department of Geology University of Maryland College Park Maryland USA