IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Logan, K.A.; Irwin, L.L.; Skinner, R. | |
| Charcteristics of a hunted mountain lion population in Wyoming | |
| 1986 Journal of Wildlife Management (50): 648-654 | |
Population characteristics were estimated from June 1981 to July 1983 for a hunted mountain lion (Felis concolor) population occupying a $741-\text{km}^{2}$ study area in the Big Horn Mountains, Wyoming. Based on the capture-recapture of 46 lions and radio-telemetry, snow-tracking, and harvest data, winter population densities were estimated at 29 km2/lion (1981-82) and 22 km2/lion (1982-83). Sex ratios of 28 kittens and 22 adults did not differ (P > 0.05) from equality. Kittens, born primarily in autumn, comprised about 50% of the population each winter, and 11 postnatal litters averaged 2.7 kittens. Some juveniles dispersed at about 12-15 months of age; 5 were recovered 9-274 km from their natal areas. Two resident females bred at 13- and 19-month intervals. The age structure of both sexes was young, the oldest adult being about 7 years old. Observed mortality the 1st year was 27% of the total population and 0% the 2nd year; immigration apparently compensated for mortalities. Home areas of 4 resident females averaged 67 km2 and overlapped almost completely. Those of the 2 resident males overlapped slightly and averaged 320 km2. Male home areas overlapped several female home areas. |
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