IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| van Dyke, F.G.; Brocke, R.H.; Shaw, H.G.; Ackerman, B.B.; Hemker, T.P.; Lindzey, F.G. | |
| Reactions of mountain lions to logging and human activity | |
| 1986 Journal of Wildlife Management (50): 95-102 | |
Reactions of mountain lions (Felis concolor) to logging and to various human activities were studied in northern Arizona from 1976 to 1980 and in southcentral Utah from 1979 to 1982. Resident mountain lions rarely were found in or near (1 km) sites logged within the past 6 years. Younger (2- or 3-year-old) mountain lions were found in logged areas more often than older mountain lions, but 4 of 5 young mountain lions that visited logged areas did not maintain residence there. In the absence of human disturbance, mountain lions showed peak activity =2 hours of sunset and sunrise. Near human presence, lion activity peaks shifted to after sunset. Other activity was concentrated during night hours, and there was no peak of activity at sunrise. Dispersing juvenile mountain lions encountered human disturbances more frequently than resident lions (P < 0.05). Established residents and young mountain lions that ultimately became residents selected home areas with road densities lower than the study area average, no recent timber sales, and few or no sites of human residence. All disturbances examined appeared to have at least potential adverse impacts on mountain lions, especially on dispersing juveniles. |
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