1. National Park Service, 1201 Oakridge Dr., Suite 200, Fort Collins, Colorado 80521, USA
2. Florida Fish and Wildlife Conservation Commission, 100 8th Avenue SE, St. Petersburg, Florida 33701, USA
3. National Park Service, 1201 Eye St. NW, 11th Floor, Washington, DC 20005, USA
4. Padre Island National Seashore, PO Box 181300, Corpus Christi, Texas 78480, USA
5. Current address: CMR 454 BOX 2188, APO AE 09250
6. National Park Service, 801 Vassar Dr. NE, Albuquerque, New Mexico 87106, USA