Laserfiche WebLink
RULE 2 PERMITS <br /> 1980 Observations <br /> Observations were conducted along a 15.6 mile road transect during the summer of 1980. The <br /> transect was divided into eight segments to more accurately, determine distribution of animals. <br /> The counts were made in early morning and late evening during June through August. All species <br /> observed along the transect were noted, together with location and vegetation type. Information <br /> on sex, age, condition, etc. were also recorded. The information will be used to compare calving <br /> and fawning activity, brood site, etc. in the spring with population numbers, sex and age ratios, <br /> etc.through the end of the summer to determine the condition of the potential breeding populations <br /> and what impacts, if any, have occurred. Winter aerial counts will also be used to supplement the <br /> summer observations. The results of the observations and location of the transect are summarized <br /> in Table 2.04.11-8, Wildlife Transect Observations and on the Wildlife Observations Map (Map <br /> 15). <br /> Rodent Studies <br /> The purpose of the rodent studies was to determine densities of rodents within the various habitat <br /> types on the site. From the data collected, the diversity, density, and the potential influence by <br /> rodents on the revegetation program were evaluated. <br /> Small mammals(rodents) were sampled using two methods.' First, two grids each 120 by 135 (72 <br /> traps) were set on two different locations on the site. Grid No. 1 was located in sagebrush-grass <br /> habitat type. The conditions at this site were conclusive to a large rodent population. Grid No. 2 <br /> was located. near -the revegetation study plot, the sagebrush-grass-serviceberry type of less <br /> quality. The grids were trapped for five consecutive night using oatmeal as bait in the traps. <br /> Rodents trapped were eartagged using Monell No. 1 tags for positive identification and released. <br /> Records of the species, age conditions, sex, trap location and capture -recapture were kept. From <br /> these data, species diversity and densities were calculated. This information is set forth in Exhibit <br /> 11, Wildlife Information. <br /> To supplement data collected from the grids,a 24 station trap transect was located adjacent to each <br /> of five browse transects. These transects were trapped for three consecutive nights, each spring <br /> and in the fall through the spring of 1976. The transects were designed only to give supplemental <br /> data on species diversity and relative abundance within the various habitat types. No absolute <br /> numbers or abundance were generated; only an indication of abundance was derived. In addition, <br /> 24-station trap transects were located in habitat improvement areas two and three. As with the <br /> other transects, these were trapped for three consecutive nights in the spring of 1976. These <br /> transects were conducted to collect data on small mammal response to the removal of cover in the <br /> habitat improvement areas. <br /> The rodent trapping grids were sampled during the fall of 1975 and spring of 1976. For the fall of <br /> 1975,grid 1 (in sage-grass habitat type)averaged 36.7 rodents/acre,99%of which were deer mice. <br /> Grid 2 (in sage grass -serviceberry habitat type)was in poor condition(shrubs were sprayed in the <br /> past to improve grazing) and produced an average of 25 rodents per acre on grid 2, 96+% of the <br /> rodents captured were deer mice. During the spring of 1976, grid 1 produced an average of 25.4 <br /> Rule 2 Permits 2.04-63 Revision Date: 12/20/19 <br /> Revision No.: TR-135 <br />