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2018 Biological Resources Inventory Report <br /> Table 4: <br /> State Listed Species and Their Likelihood of Occurrence Within the Project Area <br /> Taxonomic common State <br /> Group Name Scientific Name Status Likelihood of Occurrence within the Project Area' <br /> Lynx Lynx canadensis SE Unlikely to occur.This species is been released in experimental <br /> populations in the mountains of Colorado.Individuals from this <br /> experimental population have been documented to disperse widely <br /> in Colorado and have even traveled out of state,but the species <br /> prefers areas covered in snow year round,which does not occur <br /> within the Project area. <br /> Preble's Zapus hudsonius ST Unlikely to occur.Project is located in the USFWS Preble's <br /> Meadow preblei Meadow Jumping Mouse Block Clearance Zone.8 <br /> Jumping <br /> Mouse <br /> River Otter Lonfra canadensis ST Moderate potential to occur in riparian areas along the South Platte <br /> River. <br /> Wolverine Gulo SE Unlikely to occur.Habitat includes tundra,taiga,boreal,and alpine <br /> biomes,which are not present in the Project area. <br /> 1 Potential for Occurrence:Unlikely—No species range overlap in the Project or unsuitable habitat;Low—species range overlaps with <br /> Project with marginally suitable habitat;Moderate—species range overlaps with Project with suitable habitat or species is known to occur <br /> in habitat similar to habitat in Project;High—suitable habitat is present in the Project or known populations exist in the Project;Present— <br /> species observed during field surveys. <br /> 2 Source:Hammerson(1999) <br /> 3 Source:Sibley(2014) <br /> 4 Source:Johnson(2007) <br /> 5 Source:Sullivan et al.(2009) <br /> 6 Source:Nico et al.(2017) <br /> 7 Source:Fitzgerald et al.(1994) <br /> 8 Source:USFWS(2010) <br /> 2.2.1.4.1 Burrowing Owl <br /> Burrowing owls (ST), have suitable habitat in active and remnant black-tailed prairie dog colonies that <br /> intersect the Project area. Only one of three potential black-tailed prairie dog colonies were documented <br /> to be active in the Project area; however, burrows that could be used as burrowing owl habitat were <br /> documented in each mapped potential black-tailed prairie dog colony. Pre-construction surveys for <br /> burrowing owls according to CPW-recommended survey protocol would be conducted in these locations if <br /> construction occurs during the burrowing owl breeding season (March 15—October 31). If nesting owls are <br /> observed, the nesting location will be documented and the CPW-recommended seasonal 150-foot non- <br /> encroachment buffer will be implemented to minimize the potential for species harassment. <br /> 2.2.1.4.2 Plains Minnow, Suckermouth Minnow, and Brassy Minnow <br /> Three fish species, plains minnow(SE), suckermouth minnow(SE), and brassy minnow(ST) have the <br /> potential to occur in perennial and intermittent waters intersected by the Project. Perennial and <br /> intermittent streams ((Brighton Ditch, Brantner Ditch, and the unnamed tributary to the South Platte River) <br /> in the Project area will be avoided. No impacts to these species are expected. <br /> 12 Tucson South Sand and Gravel Mine—Brighton,Colorado <br />