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1 <br />• Table 2.3-17. Diversi[~r Index (H') for Shrubs in Range Site A Based ai the Shannon~Jeiner Index and <br />Calculated From 1980 X Stem Densities. (1)(2) <br />X Sten (3)(4) -(Pilogpi) X100 <br />Species Densitv(Ni) Pi -(Pilogoi) H' <br />Amelanchier alnifolia 1.55 .1776 .1333 18.62* <br />Artemisia tridentata .75 .0859 .0916 12.79* <br />Berberis repens .013 .0014 .0040 .56 <br />Chrysothartnus viscidiflorus .175 .0200 .0340 4.75 <br />Gutierrezia saro[hrae .0001 .0001 .000' .06 <br />Pachistima myrsinites .287 .0329 .0488 6.82 <br />Prunus virQiniana .75 .0859 .0916 12.79 <br />Purshia tridentata .029 .0030 .0076 1.06 <br />Quertus gacbelii 1.64 .1879 .1364 19.05* <br />Rosa coodsii .033 .0038 .0092 1.28 <br />Symphoricarpos oreophilus 3.50 - .4010 .1591 22.22* <br /> <br />Total Camm spp. 11 N-8.7271 .7160 100 <br />* Comprise 73% of the species diversity. (May incl~e P. Virginians or A. tridentata since both are <br />12.79% of [he total.) <br />H' <br />r 1 <br />(1) Shanron~leiner Index <br />H' _ -~pi• logpi (Pielou, 1966) <br />cicere: pi = Ni/N <br />Ni = Dominance measure (X sty density). <br />N = Tfie sutra of all species dominance treasure. <br />(2) Matry diversity indices ace available and [he above exart~le should not be considerai as the final <br />choice [o be used in es[ablishigg a vegetative stacdard. <br />(3) X stem densities are based on transect means, see text. <br />(4) Expressed as stets per square treter. <br />2-108 <br />