Laserfiche WebLink
With regard to Alternative Test B, the Total Species Density Test, the following is calculated for the 2016 <br />BRB-2a (Table G-2): <br />Mean Species Density (Area -weighted) in the 4 reference areas = 26.38 species per 100 m2 <br />Probability -adjusted density standard: <br />Mean Reference Area Species Density — 1.15s = 26.38 — 1.15 (5.04) = 20.59 <br />Mean Total Species Density in the 2016 BRB-2a = 22.85 <br />Since the reclaimed area value was greater than the standard, <br />Alternative Test B is Passed for BRB-2a data. <br />Regarding Alternative Test C, the similarity index between the lifeform species density values for the <br />prescribed lifeforms for the 2016 BRB-2a and the Mean Species density (Area -weighted) in the four <br />reference areas is 66% (Table G-3), exceeding 90% of the standard (0.9 x 70% = 63%). <br />Hence Alternative Test C is Passed for BRB-2a data. <br />Regarding Alternative Test D, the total number of native species encountered in the first seventeen 100 <br />m2. (2 m x 50 m) samples of the 2016 BRB-2a that constituted an adequate cover sample based on <br />allowable all -hit herbaceous cover was 54 (Table G-4), substantially greater than the weighted reference <br />area average native species density (23.3 species per 100 m2). Weighted reference area average native <br />species density was also exceeded by the total number of native species encountered in the first fifteen <br />100 m2 samples of the 2016 BRB-2a (46 species per 100 m2) that constituted an adequate cover sample <br />based on species diversity. <br />Hence Alternative Test D is Passed for BRB-2a data. <br />In summary, Mandatory Test A was passed as were Alternative Tests B, C and D. Thus, the species <br />diversity test as a whole is passed for the 2016 BRB-2a. This indicates that revegetation is progressing <br />well and is likely to achieve success for species diversity during a future bond release evaluation. <br />BRB-3 Diversity Tests <br />18 <br />