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~ 1 • • <br />area (six in the area seeded in 1984 and fourteen in the area seeded in <br />1988). The eites~that were sampled in 1990 were approximately the same <br />as those sampled in 1989. Data were recorded as "hits" on vegetation <br />(recorded by species), litter, bare soil or rock. The data were <br />eummarized by computing mean cover, relative cover (percent of total <br />vegetation cover attributed to each species), frequency (the number of <br />traneecte of occurrence by a epeciee divided by the total number of <br />traneecte), and relative frequency (percent of the total number of <br />traneecte of occurrence attributed to each epeciee. Relative cover and <br />relative frequency were summed to obtain an importance value on which <br />all epeciee were aerially ranked. <br />Information on species diversity was obtained by keeping track of <br />all the observed epeciee in each of the sampled areas.. The mean number <br />of species per transact was also determined. Species that were observed <br />in each of the areas but were not encountered ae hits on the transact <br />linee, appear in the cover data tablee as epeciee with lees 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 />