TY  - RPRT
TI  - Evaluating and ranking threats to the long-term persistence of polar bears
AU  - Todd C. Atwood
AU  - Bruce G. Marcot
AU  - David C. Douglas
AU  - Steven C. Amstrup
AU  - Karyn D. Rode
AU  - George M. Durner
AU  - Jeffrey F. Bromaghin
PY  - 2015
DO  - 10.3133/ofr20141254
UR  - https://pubs.usgs.gov/publication/ofr20141254
ID  - ofr20141254
ER  -