VMP Final Report 4-30-08 - Laserfiche WebLink

South Platte River, Chatfield Downstream Channel Improvement Project- Vegetation Management Plan STATE SPECIES OF CONCERN Western Coccyzus SC,C Rare spring and fall Rare; Replant shrubs in Andrews & Righter Yellow- americanus migrants; summer Probable cottonwood 1992. CDOW billed residents in Front Range understories above 2008. Cuckoo Inhabits lowland, riparian river channel. Kingery 1998. woodland with dense understories. Nest in shrubs. Northern Rana SC Breeds along stream, Uncommo Herbicide CDOW 2008. Leopard pipiens permanentlsemi- n. treatment applied Hammerson 1999. , Frog permanent pond, marsh. Probable as late into the fall Declining associated with as possible when predaceous, non-native frogs are dormant bullfrog and stocked predatory fishes. Extensive urban development impacting habitat. Common Thamnophis SC Breeds along stream, Uncommo Herbicide CDOW 2008. Garter sirtalis permanentlsemi- n. treatment applied Hammerson 1999. , Snake permanent pond, marsh. Probable as late into the fall Extensive urban as possible when development impacting snakes are dormant habitat. American Falco SC Nest on cliffs. Spring and Rare; Preserve mature Andrews & Righter Peregrine peregrinus fall migrant at site. Rare Probable cottonwood trees 1992. CDOW Falcon anahIm but possible fly-over, and snags along the 2008. perch, and forage in river corridor. Kingery 1998. project site. Ferruginous Buteo SC Winter east of the Rocky Rare; Preserve mature Andrews & Righter Hawk regah~ Mountains in Colorado. Probable cottonwood trees 1992. CDOW Prairie dog is primary and snags along the 2008. prey. Nest in isolated river corridor. Kingery 1998. trees and ground. No suitable nesting and foraging habitat. Iowa Darter Etheostoma SC Inhabits slow, clear water Uncommo Stabilize and re- CDOW 2008. exile with vegetative, sand, n; Likely plant treatment Copes 2005. mud bottoms. Commonly sites with found along stream banks graminoids. Avoid with vegetation extending chemical treatment into water, undercut of project sites banks, temporarily during reproductive flooded areas, impounded periods: spawning pools. Apr to July; fries July to Aug. F - Federally endangered, SC- State species of concern, FT - Federally Threatened, C- Federal candidate species, SE-State endangered, D-Federally delisted, ST -State threatened *These federal listed species are identified for Arapahoe County by the U.S. Fish and Wildlife Service Colorado Field Office (USFWS 2007b). For additional information contact: 303-236-4773 or 970-243-2778 t Block Clearances for these species have been provided by the USFWS Colorado. Refer to references including USFWS 2006, ERO 2006, ERO 2007, Ark Ecological Services LLC 2006. Colorado listed species and species of special concern obtain from the Colorado Division of Wildlife (CDOW 2007/2008). Page 26 Final Report - April 30, 2008