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• For Example: If Reference Areas species density in the test year has a mean total species density of <br />25.2 speces per 100 sq.m. and a standazd deviation of 5.3, the standazd would be: <br />- (1.15) x 5.3 = 19.1 <br />Thus, since the area of reclamation being tested at the [nine that year averaged 21.1 species per 100 <br />sq.m., Alternative Test B was satisfied. (Note that there aze no statistics involved here -- since the <br />reclaimed azea value was greater than the standazd). <br />Alremative Test C• Assessment of the Distribution of Species Abundance Among Lifeforms in <br />Comparison to the Reference Areas <br />Part of the quality of diversity in reclaimed lands as they carry forth into the future relates to the total <br />number of species that the ecosystem can support (Alternative Test A above}. And pact relates to the <br />distribution of the development of those species among the various lifeEotms in comparison to the <br />Reference Areas. This standard uses the Motyka similarity index to assess the resemblance of the <br />distribution of species density by lifefotm of the reclamation vegetation to that of the Reference <br />• Areas. Because the average internal resemblance (i.e. between-sample similarity) of Reference Areas <br />for species density data is often in the range of 75%, this is the proposed species density standazd Eor <br />the Seneca II-W Mine (including South Exteasioa Area). <br /> <br />when: <br />c = the sum of the smaller of the paired species density values (fox each life Eorm) for <br />reclaimed and Reference Areas* <br />a = total of species density values for lifeforms of the reclaimed areas <br />b = total of species density for the lifefoans of the Reference Areas* <br />* 'Weighted average GfeEorm species density using the Seneca II-W Reference Areas (weighted as <br />specified under Cover above). <br />r1 <br />f`J <br />TR-50 53 Revised 07/05 <br />