TY - RPRT TI - Analyses on subpopulation abundance and annual number of maternal dens for the U.S. Fish and Wildlife Service on polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska AU - Todd C. Atwood AU - Jeffrey F. Bromaghin AU - Vijay P. Patil AU - George M. Durner AU - David C. Douglas AU - Kristin S. Simac PY - 2020 DO - 10.3133/ofr20201087 UR - https://pubs.usgs.gov/publication/ofr20201087 ID - ofr20201087 ER -