1. US Geological Survey; National Wetlands Research Center; 700 Cajundome Blvd. Lafayette LA 70506 USA
2. Baruch Institute of Coastal Ecology and Forest Science; Clemson University; Georgetown SC 28442 USA
3. Department of Ecology, Evolution and Marine Biology; University of California - Santa Barbara; Noble Hall 2116 Santa Barbara CA 93106-9620 USA
4. US Geological Survey; Western Ecological Research Center; 4165 Spruance Road, Suite 200 San Diego CA 92101 USA