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Page 19 <br />776 E. 2nd Avenue • Durango, CO 81301 • Phone: (970) 382-7256 • Fax: (970) 382-7259 <br />www.ecosphere-services.com <br />Potential to Occur <br />Species <br />Habitat Associations <br />Found in mainstem rivers and tributary <br />Bluehead sucker <br />streams and infrequently in lakes and <br />No rivers occur within the project <br />(Catostomus discobolus) <br />reservoirs. Prefers deep water in areas of <br />areas. <br />moderate to fast current over rocky substrate. <br />Rocky pools, runs, riffles, and backwaters of <br />Flannelmouth sucker <br />medium to large rivers, less often in small <br />No rivers occur within the project <br />(Catostomus latipinnis) <br />rivers and creeks, absent from <br />areas. <br />impoundments. Historical range included the <br />Colorado River Basin. <br />Roundtail chub <br />Deep pools and eddies in mid- to large-sized <br />No large rivers occur within the project <br />(Gila robusta) <br />rivers and streams throughout the Colorado <br />areas. <br />River Basin. <br />Requires cool, clear water and well -vegetated <br />Colorado River <br />streambanks for cover and bank stability; <br />cutthroat trout <br />instream cover in the form of deep pools and <br />No rivers occur within the project <br />(Oncorhynchus clarki <br />boulders and logs also is important; adapted <br />areas. <br />pleuriticus) <br />to relatively cold water, thrives at high <br />elevations.. <br />Reptiles <br />Midget faded <br />Rocky outcrops in areas where sagebrush is <br />rattlesnake <br />abundant throughout the Green River <br />No Green River Formation occurs in <br />(Crotalus viridis <br />Formation in southeastern Wyoming, eastern <br />the project areas. <br />concolor) <br />Utah and western Colorado. <br />Habitat includes desert and semi -desert areas <br />Longnose leopard lizard <br />with scattered shrubs or other low plants <br />No low sagebrush or other semi -desert <br />(Gambelia wislizenii) <br />(e.g., creosotebush, sagebrush), especially <br />habitats in the project areas. <br />areas with abundant rodent burrows. <br />Amphibians <br />Boreal toad <br />Mountain lakes, ponds, meadows, and <br />No wetlands, springs, or other water <br />(Anaxyrus boreas <br />wetlands in subalpine forest between 7,000 <br />sources in the project areas. Project <br />boreas) <br />and 12,000 feet. <br />areas are located at <br />Canyon tree frog <br />Found in rocky canyons and along intermittent <br />No water sources in the project areas. <br />(Hyla arenicolor) <br />or permanent streams. <br />Springs, slow streams, marshes, bogs, ponds, <br />Northern leopard frog <br />canals, flood plains, reservoirs, and lakes; <br />Suitable habitat does not occur in the <br />(Rana pipiens) <br />usually permanent water with rooted aquatic <br />project area. <br />vegetation. <br />Invertebrates <br />Great Basin silverspot <br />Found in streamside meadows interspersed <br />butterfly <br />with willows and open areas with an <br />No wetlands, seeps or bogs in the <br />(Speyeria nokomis <br />abundance of bog violets. <br />project areas. <br />nokomis) <br />776 E. 2nd Avenue • Durango, CO 81301 • Phone: (970) 382-7256 • Fax: (970) 382-7259 <br />www.ecosphere-services.com <br />