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Overall Range: The area which encompasses all known seasonal activity areas within <br />the observed range of a population. <br />Resident Population: An area that provides year round range for a population. The <br />resident animals use all of the area all year long; it cannot be subdivided into seasonal <br />ranges. A resident population may be found within the overall range of a larger, <br />migratory population. <br />Concentration Area: That part of the overall range where densities are at least 200% <br />greater than the surrounding area during a season other than winter. <br />Limited Use Area: An area within the overall range is occasionally inhabited and /or <br />contains a small, scattered population. <br />Migration Corridors: A specific mappable site through which large numbers of animals <br />migrate and the loss of which would change migration routes. <br />Winter Range: That part of the overall range where 90 percent of the individuals are <br />located between the first heavy snowfall and spring green -up during the average five <br />winters out of ten or for a site specific period defined by CDOW personnel for that DAU. <br />Winter Concentration: That part of the winter range where animal densities are at least <br />200% greater than the surrounding winter range density during the same period used to <br />define winter range in the average five winters out of ten. <br />Severe Winter: That part of the winter range where 90% of the individuals are located <br />when the annual snowpack is at its maximum and /or temperatures are at a minimum in <br />the two worst winters out of ten. <br />A resident population of pronghorn inhabit the Little Snake River exploration area. The <br />exploration area is within mapped pronghorn winter range, winter concentration, and severe <br />winter range. No pronghorn migration corridors or migration patterns are mapped in the area. <br />A resident population of mule deer inhabit the Little Snake River exploration area. The <br />exploration area is within mapped mule deer winter range. Much of the exploration area is also <br />within mapped winter concentration and severe winter range. No mule deer migration corridors <br />or migration patterns are mapped in the area. But, State Highway 13 is mapped as a mule deer <br />highway crossing area. <br />The Little Snake River exploration area does not have a resident population of elk. The northern <br />portion of the area is mapped as an elk limited use area. The exploration area is within mapped <br />elk winter range. The eastern portion of the exploration area is within mapped winter <br />concentration and severe winter range. No elk migration corridors are mapped in the area, but a <br />migration pattern does flow into the area from Cold Mountain to the southeast and State <br />Highway 13 is mapped as an elk highway crossing area. <br />5.6 Other Mammals <br />Vegetation and Wildlife Baseline Survey Report <br />Linc Energy Little Snake River Project <br />A variety of small and medium -sized mammal species are known to occur in and adjacent to the <br />exploration area. These species include predators and furbearers such as the coyote (Canis <br />latrans), red fox ( Vulpes vulpes), bobcat (Lynx rufus), striped skunk (Mephitis mephitis), muskrat <br />(Ondatra zibethicus), long - tailed weasel (Mustela frenata), badger (Taxidea taxus), and <br />Townsend's big -eared bat (Corynorhinus townsenii). Prey species include various rodents <br />Page 15 <br />Habitat Management, Inc. December 2011 <br />