1Department of Microbiology and Plant Biology, University of Oklahoma, Norman, Oklahoma 73019, USA
2U.S. Geological Survey, Western Ecological Research Center, San Francisco Bay Estuary Field Station, Vallejo, California 94592, USA
3U.S. Geological Survey, Patuxent Wildlife Research Center, Beltsville, Maryland 20705, USA
4U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska 99508, USA
5Department of Bioscience, University of Aarhus, Kalø, Rønde, DK-8410, Denmark JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/