共 15 条
- [1] Amstrup SC, 2008, GEOPHYS MONOGR SER, V180, P213, DOI 10.1029/180GM14
- [2] PREGNANCY RATES AND SERUM PROGESTERONE LEVELS OF POLAR BEARS IN WESTERN HUDSON-BAY [J]. CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE, 1992, 70 (03): : 561 - 566
- [8] Mauritzen M, 2001, CAN J ZOOL, V79, P1704, DOI 10.1139/cjz-79-9-1704
- [9] Estimating Allee Dynamics before They Can Be Observed: Polar Bears as a Case Study [J]. PLOS ONE, 2014, 9 (01):