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Seneca II Phase 112010 BRB Species Composition Comments <br />Total observed species density averaged 22 (native and non - native) species per 100 sq.m. in the Phase <br />II BRB tested in 2010 at the Seneca II Mine. This is less than the averages (from 28 to 33 species per <br />100 sq.m.) for the reference areas (see Figure 2). However, within the 21 samples taken (comprising <br />together slightly over 1 /2 acre) there exist 44 native species. Hence the potential for native species to fill in <br />to species density levels equaling the references area levels is clearly present. Figure 2 also indicates <br />that in terms of life forms, there are species from the same spectrum and in similar proportion to what <br />exists in the reference areas. The greatest contribution to vegetation cover by an individual species is <br />21% relative cover (by intermediate wheatgrass). <br />15 <br />