1. Department of Fish, Wildlife, and Conservation Biology Colorado State University Fort Collins Colorado USA
2. U.S. Fish and Wildlife Service Marine Mammals Management Anchorage Alaska USA
3. U.S. Geological Survey Alaska Science Center Anchorage Alaska USA
4. Southeast Alaska Inventory and Monitoring Network National Park Service Juneau Alaska USA
5. Glacier Bay Field Station National Park Service Juneau Alaska USA
6. Department of Statistics and Data Sciences The University of Texas at Austin Austin Texas USA