In the work of Kashem et al. (2007), Zn had the dominance in the residual fraction and was comparatively less mobile.
However, the overwhelming dominance of the residual fraction for these trace elements, except Pb, Cd, Zn, and Cu, indicates that trace elements are not easily mobilized under the natural conditions.
Because the residual phase is difficult to mobilize, the overwhelming dominance of the residual fraction for these trace elements (Table IV, Fig. 5), except Pb, Cd, Zn, and Cu, indicates that trace elements are strongly bound, or held, within mineral crystal structure, and are thus not easily mobilized under the natural conditions.
In Cryptomeria, our trimer motif dominance across the EST fractions corresponds with that reported by [ 37] (i.e., AGG, 5′UTR; AAG, ORF; AAT, 3′UTR).
This is reflected in the fact that in these more even assemblages dominant species tend to be larger, as well as representing a smaller fraction of total dominance.
However, the dominance of the metals residual fraction in the Egyptian soils supports the assumption of the geogenic origin of these metals in these soils.
In this study, we examine the hypothesis that soil heterogeneity, determined by variation in surface soil depth, carbonate accumulation, and fine-textured fraction, controls relative dominance of the three species.
The curve for an intermediate fraction of opposite dominance (blue) falls in between these two extremes.
The power to detect dominance was defined as the fraction of simulations in which the contrast Cross vs. (5/8 NS + 3/8 S) was significant at α = 0.05.
In temperate grasslands, usually a small number of species with an inherent taller growth achieves dominance and contributes the largest fraction of community biomass.
The Bacteroidetes were the most abundant phyla in majority samples, while few of the solid fraction samples had dominance of Firmicutes, similar to the earlier results observed in bovine rumen [ 37, 38].
