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<br />2.0 METHODOLOGY <br />• <br />2.1 Mammals <br />2.1.1 Small Mammals <br />Small mammals were inventoried during the last week of May within <br /> <br />all four major vegetation types. These vegetation types included: 1) <br />wet meadow (riparian), 2) sagebrush, 3) aspen and 4) mountain shrub. <br />Sampling occurred along a trap line within each vegetation type (Figure <br />2.1.1-1). Each line consisted of 50 trap stations spaced 15 meters <br />apart. A snap trap was positioned at each station and baited with a <br />mixture of peanut butter and oats. Traps were checked three times <br />during the early morning hours. A rain delay caused a break in the trap <br />check schedule, thereby causing two extra nights of operation for unsprung <br />traps (i.e., traps were checked May 30 and 31; allowed to operate over <br />the weekend and then checked again Juae 4). <br />At the time of trap checks, data concerning species, sex, age <br />class, reproductive status, general physical condition, and capture <br />location were recorded on standard data forms. <br />Armstrong (1972) was used as the most current published literature <br />on mammalian distribution in Colorado. <br />Relative abundance foz each habitat was calculated for small mammal <br />species according to the formula: <br />Percent Relative Abundance - Na. individuals of species A x 100 <br />F individuals of all species <br />2.1.2 Medium Sized Mammals <br />The scent-station visitation technique was employed to inventory <br />mammalian predators and other medium sized mammals. The procedure <br />