1. Natural Sciences DepartmentDaemen College Amherst New York, U.S.A.
2. Department of Biological SciencesLouis Calder Center–Biological Field StationFordham University Armonk New York , U.S.A.
3. National Exposure Research LaboratorySystems Ecology DivisionU.S. Environmental Protection Agency Cincinnati Ohio, U.S.A.
4. National Health and Environmental Effects Research LaboratoryAtlantic Ecology DivisionU.S. Environmental Protection Agency Narragansett Rhode Island, U.S.A.