Creator
- Blackburn, Laura1
- Hopkins Marine Station1
- Instituto Brasileiro de Geografia e EstatÃstica1
- Lannoo, Michael J.1
- Nanjappa, Priya1
- Patuxent Wildlife Research Center1
- Schultz, Kenneth A.1
- Stackhouse, Cecil1
- Tehama County Public Works1
- U.S. Fish and Wildlife Service1
- United States Geological Survey1
- United States. Bureau of Transportation Statistics1