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0rls 0rls 1ut 1ut 1ut 3able 3otal adult females adult males age class age structure Aid in Wildlife Alaska Department Alaska during 1986 Alaska Range Alaska using conventional arctic area of northwestern average Ballard bear densities bears Ursus arctos Brooks Range brown bear cementum census area CHUKCHI SEA collars confidence intervals conventional radiotelemetry conventional telemetry convex polygon count areas dens density estimates Department of Fish female grizzly bears females with COY Fish and Game fixed-wing aircraft Georgette 1989 grizzly bear population grizzly bears Ursus habitat harvest rates home range sizes immobilized June Juneau Kodiak Island litter Loon and Georgette mark-resight methods National Park Service Noatak National Preserve Noatak River study northwestern Alaska NRSA number of bears observed polygon population estimates PTT's radio-collared bears Red Dog Relocations of female reported harvests Reynolds River study area satellite telemetry sex and age sightability skull Table Weaned Weaned Weaned yearlings zolazepam