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vegetation cover was calculated by dividing first hit absolute cover for each species by the total <br />first hit vegetation cover. All -layer absolute cover (COVER -ALL column in data tables) was <br />calculated by dividing all hits (first -hits and additional -hits) for a particular species by the total <br />number of points taken (100). In addition, all -layer relative cover was calculated using all hits for <br />a particular species, divided by the total hits accumulated during sampling of the transect. <br />Lifeforms Used in Data Presentation <br />To enhance understanding of collected data, all data and summary tables are organized by <br />lifeform. Lifeform categories used here reflect growth habit and provenance (place of origin). <br />Categories observed in 2014 were: native annual and biennial forbs, introduced annual and <br />biennial (orbs, introduced annual grasses, native perennial forbs, introduced perennial forbs, <br />native perennial grasses and graminoids, introduced perennial grasses, native shrubs, and <br />bryophytes. <br />Plant Species Frequency and Density Measurements <br />During the course of cover sampling, all plant species occurring within one meter of either side of <br />the cover sample transect were noted as present. Frequency for each plant species observed <br />during sampling was calculated by dividing the number of sample transects in which the species <br />was observed by the total number of samples (see cover sample distribution by area above). As <br />such, this value is probably more correctly known as constancy. <br />The total number of species within each lifeform observed in each 100 square meter sample <br />provides a measure of "species density", indicating the relative species richness of different <br />areas. These measures provide a means of examining progress toward the return of diverse <br />species composition in the reclaimed areas. <br />Plant Species Listing <br />Scientific names used follow Weber and Wittmann (1996); common names cited are found in <br />Beetle (1970), Nickerson et al. (1976), or Soil Conservation Service (1979). Cross-references <br />between older names and the revised scientific nomenclature for the flora of Western Colorado <br />used here can be made by reference to Appendix 2 of this report. <br />During the course of the fieldwork, a list of all plant species encountered (quantitative plus <br />incidental observations) was compiled for the reclamation area and the two reference areas. <br />These lists are summarized in Appendix 2, Species Presence for All Areas. Note that all big <br />sagebrush plants encountered were referred to as Seriphidium tridentatum. Plants referred to <br />here as Poa secunda are the plants formerly known as big bluegrass (Poa ampla) that were <br />3 <br />