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<br />.< <br />occurrence by a species divided by the total number of transects), and <br />relative frequency (percent of the total number of transects of <br />occurrence attributed Lo each species. Relative cover and relative <br />frequency were summed to obtain an importance value on which all species <br />were serially 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. <br />RESULTS <br />Complete cover summaries for the 1984 area, the 1968 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 /> Cover <br />1984 Area in Percent <br />1988 Area <br />Combined <br />Total Vegetation Cover 23.7 +/- 7.09 16.1 +/- 5.89 18.4 +/- 7,04 <br />Litter and Rock Combined 46.7 +/- 5.32 57.4 +/- 8.54 54.2 +/- 9.11 <br />Bare Soil 29.7 +/- 9.07 26.4 +/- 8.05 27.4 +/- g.26 <br />Total Ground Cover (Total <br />Vegetation + Litter) 70.3 +/- 9.07 73.6 +/- 8.05 72.6 +/- 8.26 <br />Species lists for each of the areas are presented in Tables 2 and <br />4 and a list for both areas combined is presented in Table 6. <br />