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<br />Arizona Game and Fish Department <br />Draft EA: Kanab Ambersnail <br /> <br />Sites 13 and ] 5: Nankoweap "Canyon Grape" and "Twin Springs": <br /> <br />COMMON NAME <br />American peregrine falcon <br />Grand Canyon primrose <br />Humpback chub <br />Southwestern willow flycatcher <br />Roaring Springs prickly-poppy <br /> <br />SCIENTIFIC NAME <br />Falco peregrilnJs anatum <br />Primula specuicola <br />Gila cypha <br />Empidonax traillii extimus <br />ArKemone arizonica <br /> <br />Site 14: Kanab Creek Seep <br /> <br />COMMON NAME <br />American peregrine falcon <br />Grand Canyon flaveria <br />Humpback chub <br /> <br />SCIENTIFIC NAME <br />Falco peregriT/Us anatum <br />Flaveria mcdOllgallii <br />Gila cypha <br /> <br />June 1998 <br />Page 18 <br /> <br />STATUS <br />LE,WC,S <br />SR <br />LE,WC,S <br />LE,WC <br />S <br /> <br />STATUS <br />LE,WC,S <br />SR <br />LE,WC,S <br /> <br />In addition, the project appears to occur within designated Critical Habitat for the humpback chub <br />(Gilacypha)(59 Federal Register 13374, March 2], ]994), razorback sucker (Xyrauchen texaT/Us) <br />(59 FR 13374, March 2], 1994), and Southwestern willow flycatcher (Empidonax traillii extimus) <br />(58 FR 39495, July 23,1993) <br /> <br />2, Impacts: Establislunent of wild KAS populations will not adversely affect any special status <br />species in the vicinity of establislunent sites. KASs are terrestrial snails, restricted to wetland areas, <br />and will not impact endangered native fish, No Southwestern willow flycatcher, American peregrine <br />falcon, or Mexican spotted owl nesting sites were discovered at proposed KAS establislunent sites, <br />Proposed KAS sites are distant enough that establislunent and monitoring activities will not disturb <br />these avian species, KASs will not migrate into the surrounding xeric landscape of Grand Canyon <br />wetlands, and will not affect special status flora listed above Access to proposed KAS sites will be <br />light (once each season), and will utilize existing game trails and hiking trails, When possible, these <br />activities will be coordinated with other science trips or investigators to lower costs and reduce the <br />time and logistics required, <br /> <br />F. OTHER CONCERNS <br /> <br />This section addresses concerns raised by interagency investigators, resource managers, and KA WG <br />participants on the following topics: competition with other mollusks, infection and dispersal of the <br />KAS parasite, captive-breeding programs, the TPZ refugium, founder population size, and risks of <br />using egg masses for translocation, Citations to related scientific literature, government reports, and <br />recent unpublished data/personal communications are provided to support the following com:lusions, <br /> <br />Interspecific competition among mollusk species is not anticipated with e!tablillhing wild KAS <br />populations, Of the 15 proposed KAS establislunent sites only Thunder River, Roaring Springs, and <br />