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~~ <br />1 <br />fifty points per transect. Twenty transects were sampled in the entire <br />' area (six in the area seeded in 1984 and fourteen in the area seeded in <br />1988). The sites that were sampled in 1994 were in the same general <br />locations as those sampled in 1989, 1990, 1991, 1992 and 1993. Data <br />' were recorded ae "hits" on vegetation (recorded by species), litter, <br />bare soil or rock. The data were summarized by computing mean cover, <br />' relative cover (percent of total vegetation cover attributed to each <br />' species), frequency (the number of transects of occurrence by a species <br />divided by the total number of transects), and relative frequency <br />' (percent of the total number of transects of occurrence attributed to <br />each species. Relative cover and relative frequency were summed to <br />obtain an importance value on which all species were serially ranked. <br />Information on species diversity was obtained by keeping track of <br />1 all the observed species in each of the sampled areas. The mean number <br />' of species per transect was also determined. Species that were observed <br /> in each of the areas but were not encountered as hits on the transect <br />' lines, appear in the cover data tables as species with less than one <br /> percent mean c over and zero percent frequency. <br /> <br /> RESULTS <br />' <br /> Complete cover summaries for the 1984 area, the 1988 area and the <br />' two areas comb ined are presented in Tables 1, 3 and 5, respectively. <br /> The key cover values are summarized below (+/- values equal the standard <br />' <br /> deviation): <br />1 <br />1 <br />' -2 <br />