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Preble's Meadow Jumping Mouse Habitat Assessment& Conservation Plan <br /> Two Rivers Parcels—Varra Companies <br /> Weld County, Colorado <br /> Ecological Features of the Project Area <br /> Surveys for Preble's (survey area)were conducted in suitable habitat along the Little Thompson River in <br /> the northern portion of the project area and the South Platte (Figure 2).The project area is <br /> characterized by four agricultural fields adjacent to riparian corridors to the north and south. The Little <br /> Thompson River is located on the northern boundary of the project area.The river flows east through <br /> the town of Berthoud, Colorado and joins the Big Thompson River near Greely, Colorado.The South <br /> Platte River flows east along the southern end of the project area. <br /> The vegetation along both rivers consists of a mixture of woodland, shrubland, and grassland areas. The <br /> vegetation in the riparian areas are dominated by an overstory of plains cottonwood (Populus deltoides), <br /> narrowleaf cottonwood (Populus angustifolia),water birch (Betula occidentalis),thinleaf alder (Alnus <br /> incana), and box elder (Acer negundo)trees. The riparian corridor supports dense thickets of sandbar <br /> willow (Salix exigua) shrubs along the creek banks. Upland shrub species including chokecherry(Prunus <br /> virginiana), American plum (Prunus americana), and western serviceberry(Amelanchier alnifolia) occur <br /> in scattered stands throughout the floodplain of the creeks. Other dominant herbaceous species in the <br /> riparian area include smooth brome (Bromus inermis) and redtop (Agrostis gigantea). <br /> The survey area includes the riparian corridors along both the South Platte and Little Thompson Rivers, <br /> as well as a canal that parallels the Little Thompson River to the north. Habitat along the southern <br /> portion of the Little Thompson contains mixed woodlands and shrubs while the northern portion of the <br /> river consists of tall grasses and shrubs.The survey area along the South Platte consists of its southern <br /> edge which contains mixed woodlands and shrubs and a mix of native and non-native shrubs and forbs. <br /> Previous Surveys near the Survey Area <br /> Four previous trapping surveys were conducted within two miles of the survey area from 1997 to 2006 <br /> (Service PMJM Trap Results 2014). A positive trap location was found in June of 2001 by Savage& <br /> Savage, approximately 1.7 miles southwest of the project area along the South Platte River.The other <br /> three survey attempts did not result in positive trapping of Preble's. <br /> Endangered Species Act Compliance <br /> The project area does not fall within U.S. Fish and Wildlife Service (Service) habitat or survey guidelines <br /> for the majority of the species listed by the Service as potentially occurring in Weld County(Table 1). <br /> The interior least tern, piping plover, whooping crane, pallid sturgeon, and western prairie fringed <br /> orchid are species that are affected by continued or ongoing water depletions to the Platte River <br /> system. Because there is no federal nexus and the project would avoid all waters of the U.S. and would <br /> not require a federal action,the project would not require Section 7 depletions consultation. <br /> ERO assessed the project area for suitable habitat for Preble's, Ute ladies'-tresses orchid (Spiranthes <br /> diluvialis or ULTO), and Colorado butterfly plant (Gaura neomexicana ssp. coloradensis or CBP). <br /> Although the ESA does not apply to take of plants incidental to otherwise lawful activities, ERO <br /> evaluated impacts of the project on ULTO and CBP. <br /> 2 <br /> =R0 Resources Corporation <br />