Laserfiche WebLink
pennycress were also well established, especially in plot 1 (46 cm topsoil). The non-topsoiled <br />plots (4 and 5) at Colowyo had much lower vegetative cover and fewer plant taxa than the <br />topsoiled plots. This difference results lazgely from the higher cover of weedy species on the <br />topsoiled plots. Shrub species were establishing well in the plots at Colowyo (Table 2). <br />Mountain big sagebrush appears to have established well in most plots relative to other shrub <br />species. Of the 11 shrub species that were seeded at Colowyo, 9 were encountered in the <br />vegetation surveys (silver buffaloberry and Wood's rose were not found). <br />The fall 2000 seeding at the Seneca II mine appeazs to have been somewhat successful. <br />However, with the higher elevation of Seneca II, early results would be less evident at the time <br />of sampling relative to Colowyo. Some of the seeded species were encountered in some of the <br />plots at Seneca II. Like Colowyo and Trapper, Russian thistle dominated topsoiled plots at <br />Seneca II. Shrub density was low at Seneca II (Table 3) relative to Colowyo. However, several <br />seeded species appeazed to be establishing during this eazly phase of the study. Shrub tubelings <br />planted in some of the plots showed good survival at the time of sampling (Table 4). <br />In summazy, these preliminary results indicate that the spring seeding at Trapper mine <br />was not successful. Fall seeding at Colowyo resulted in establishment of most of the seeded <br />species but weedy annuals dominated plots during this first growing season. Fall seeding and <br />shrub transplanting at Seneca II mine appears to have been somewhat successful but more time <br />will be needed to make a suitable evaluation. <br />n <br />U <br />• <br />CF 8.5.5 2002 results <br />