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POTENTIAL TO OCCUR IN THE <br />SPECIES HABITAT DESCRIPTION PROJECT AREA <br /> <br />Longnose leopard lizard Generally below 5000 feet in extreme Project area is above the known <br /> <br />(Gambelia wislizenii) western Colorado; associated with <br />elevational range for this species. <br /> . <br />desert shrub. <br />Desert spiny lizard Desert or shrubland habitats below Project area is above the known <br />(Sceloporus magister) 51,00 feet in Colorado. elevational range for this species. <br />PLANTS <br /> Project area contains no red <br />Cronquist milkvetch Sandy or gravelly ridges on red sandstone or sandy ridges; project <br />(Astragalus cronquistii) sandstone from 4,800-5,800 feet. area is above the known elevational <br /> range for this species. <br />Naturita milkvetch Sandstone ledges, slopes and mesas Project area does not contain shallow <br />(Astragalus naturitensis) in pinon juniper woodlands between soils or exposed sandstone bedrock. <br /> 5,000-7,000 feet. <br />Comb Wash buckwheat Shale soils between 4,300-5,500 feet Project area is above the known <br />(Eriogonum clavellatum) in elevation. elevational range for this species. <br /> Fine textured soils derived from <br />Pagosa gilia Mancos Formation; barren shales in Project area does not include soils <br />Qpomopsis polyantha) Ponderosa, scrub-oak or woodland derived from the Mancos formation. <br /> communities (6,800-7,200 feet). <br /> Fine textured soils derived from Project area does not contain <br />Pagosa bladderpod Mancos Formation; Ponderosa, ponderosa or pine-oak communities <br />(Lesquerella pruinosa) Douglas fir and Engelmann spruce or soils derived from the Mancos <br /> (6,800-8,300 feet). formation. <br />Source: Colorado BLM State Director's Sensitive Species List, available at http:/www.co.blm.gov/botany/sens_species.nim. <br />Townsend's big eared-bats typically roost in mines, caves, and old buildings. Fringed myotis are <br />tree roosters (also roosting in rock crevices), but typically roost in trees such as ponderosa pine, <br />spruce, or fir (Adams 2003); to date, there are no documented occurrences of fringed myotis <br />nesting in pinon juniper (Kirk Navo, Colorado Division of Wildlife, pers. comm. 9 April 2008). <br />Townsend's big-eared bat and fringed myotis are known to forage in pinon juniper woodland <br />habitats however, the proposed project area offers no roosting sites. Therefore, the likelihood <br />that these bats would occur in the project area is low. <br />No occurrences of sensitive plants were found during plant surveys in the analysis area. <br />Environmental Consequences <br />It is unlikely that the Proposed Action would impact any BLM sensitive species. Only two BLM <br />sensitive wildlife species have potential to occur in the project area and the potential for each <br />would be considered low due to the absence of important habitat components. The absence of <br />cliff habitat, caves, mines or buildings within the project area, limits roosting and hibernation <br />sites for Townsend's big eared-bat and fringed myotis. Project construction may cause some <br />short-term foraging displacement for these species. For this reason, there will be "no impact" to <br />any BLM sensitive species except Townsend's big eared-bat and fringed myotis. For <br />Townsend's big eared-bat and fringed myotis, the Proposed Action "may adversely impact <br />individuals but is not likely to result in a loss of viability on the planning area, nor cause a trend <br />to federal listing or a loss of species viability rangewide." <br />Mitigation <br />Grandview Gravel Pit Expansion Environmental Assessment 33