The Lake Revelstoke caribou (LRC) are the southernmost contiguous mountain caribou population in British Columbia. Population characteristics of the LRC were examined during 1981–85, with 13 radio-collared caribou, and 1992–98, with 47 radio-collared caribou. During several late-winter censuses, sightability of marked animals was 92% and the proportion seen was a function of the height of snow (HS). Our best estimate of the population size was 375 animals (95% CI 337–413). Cause of death of 31 radio-collared animals included accidents (42%), predation (29%), and poor condition (10%). Deaths due to avalanches (accidents) were the single leading cause at 23%. Survival of radio-collared caribou averaged 84% since 1992. Progesterone levels in 29 female caribou indicated that 83% were pregnant. There was an average of 28 calves/100 adults during 1981–84, and 18 calves/100 adults during 1994–97. Survival rates of adult caribou and the ratio of calves per 100 adults indicate that the population was stable.
Flaa, John P., McLellan, Bruce N.. 1999. Population Characteristics of the Lake Revelstoke Caribou (in Proc. Conference Biology & Management of Species and Habitats at Risk). Ministry of Environment, Lands and Parks; University College of the Cariboo. Conference Biology & ManagementProceedings