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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 1992 were in the same general <br />locations ae those sampled in 1989, 1990 and 1991. Data were recorded <br />as "hits" on vegetation (recorded by species), litter, bare soil or <br />rock. The data were summarized by computing mean cover, relative cover <br />(percent of total vegetation cover attributed to each species), <br />frequency (the number of transects of occurrence by a species divided by <br />the total number of transects), and relative frequency (percent of the <br />total number of transects of occurrence attributed to each species. <br />Relative cover and relative frequency were summed to obtain an <br />importance value on which all species were aerially ranked. <br />Information on species diversity was obtained by keeping track of <br />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 ae hits on the transect <br />lines, appear in the cover data tables ae species with less than one <br />percent mean cover and zero percent frequency. <br />RESULTS <br />Complete cover summaries for the 1984 area, the 1988 area and the <br />two areas combined are presented in Tables 1, 3 and 5, respectively. <br />The key cover values are summarized below (+/- values equal the standard <br />deviation): <br />-2- <br />