1. Department
of Biological Sciences, Kent State University, 1275 University Esplanade, Kent, Ohio 44242, United States
2. School
for Environment and Sustainability, University of Michigan, 440 Church
St., Ann Arbor, Michigan 48109, United States
3. Nickel Producers
Environmental Research Association (NiPERA, Inc.), 2525 Meridian Parkway, Suite 240, Durham, North Carolina 27713, United States