existing roads within security 

 cores should be completely free of 

 motorized access during the 

 nondenning period. Security core 

 areas must also have relatively 

 low nonmotorized use. A moving- 

 windows analysis {Ake 1994) was 

 conducted to determine road 

 densities and security core areas 

 within the Lazy Creek and Stryker 

 Grizzly Bear Management Subunits 

 {TABLE E-1 - PRESENT ROAD DENSITY 

 AND LEVELS THROUGH PROJECTS 

 PROPOSED FOR THE IMMEDIATE 

 FUTURE) . Total road densities are 

 presently at 1996 thresholds for 

 the Stryker and Lazy Creek 

 subunits . 



Security core comprises 12 percent 

 of the State-owned portion of the 

 Lazy Creek Grizzly Bear Management 

 Subunit and 50 percent of the 

 Stryker Grizzly Bear Management 

 Subunit. Baseline from 1996 for 

 the Lazy Creek Grizzly Bear 

 Management Subunit was 12 percent; 

 the Stryker Grizzly Bear 

 Management Subunit was 50 percent. 



Direct and Indirect Effects 



• /Ji'rect nnil Indirect li^ffect^ ofJKo-, Iction 

 *1lternatice . 1 on Grixsly Jiearn 



No direct effects to grizzly 

 bears would be expected. 

 Grizzly bears using the project 

 area for any type of life 

 requirement would be under the 

 lowest risk of mortality or 

 disturbance caused by grizzly 

 bear-human interactions under 

 this alternative. Foraging 

 opportunities may decline due to 

 the lack of diversity in habitat 

 such as forest edge and younger 

 age-class stands. No changes in 

 security core, open- or total - 

 road densities, or hiding cover 

 are anticipated. 



• Direct and Indirect JJ^ffects of. Iction 

 Mternntive B on Crrixzlj/ Bears 



This project may affect grizzly 

 bears directly through increased 

 road traffic, noise, and human 



activity, and indirectly by 

 altering the amount of hiding 

 cover and forage resources. 

 Activities in occupied grizzly 

 bear habitats reduce grizzly 

 bear security, possibly 

 resulting in increased stress 

 and/or energy expenditure to 

 endure the disturbance or to 

 move from the area. These 

 disturbances would only be 

 present during harvesting 

 operations . 



The season of disturbance is 

 important in addressing impacts 

 to grizzly bears. Winter 

 harvesting would result in no 

 direct effects to grizzly bears 

 in areas with no known den 

 sites. Secondarily, activities 

 that target time periods when 

 the probability of animals using 

 the area is low would result in 

 reduced direct disturbance to 

 grizzly bears in the nondenning 

 period. 



Hiding cover, defined as 

 vegetation that will hide 90 

 percent of a grizzly bear at a 

 distance of 200 feet, would be 

 reduced by 939 acres (502 acres 

 in the Lazy Creek Grizzly Bear 

 Management Subunit and 432 acres 

 in the Stryker Grizzly Bear 

 Management Subunit) in the 

 proposed harvesting. Hiding 

 cover is especially important 

 along open roads and in areas 

 that receive human disturbance. 

 Pockets of cover, including 

 SMZs, reserve areas, and 

 advanced regeneration would be 

 retained within the units, so 

 these figures represent a 

 liberal estimate of the 

 potential loss of hiding cover 

 in the proposed project area. 

 Forested buffers would be 

 retained between units and open 

 roads to provide screening to 

 increase security. Hiding cover 

 in the harvested units is 

 expected to regenerate in 5 to 

 10 years. 



Page E-10 



Dog/Meadow Timber Sale Project Draft EA 



