The top image (FIGURE 10) shows that the early successional species group together based on the clustering values in both the Young Growth stand (PLOTA) and the Old Growth stand (PLOTC) and the slope of the dbh distribution in the Young Growth stand (PLOTA). The distinction between mid and late successional species is suggested, but less defined. Speices 30 (TABUYONG) is an known early successional species that lies outside the clustering of the other known early successional species. This can be explained since Tabuyog has almost a 50% higher frequency then the species with the second highest frequency in the Young Growth stand (PLOTA). FIGURE 11 shows the same PCA analysis as in FIGURE 10, but values are plotted based on the clustering values in the Young Growth stand (PLOTA) and the slope of the dbh distribution in the Old Growth stand (PLOTC). By changing the values that are plotted in the PCA biplot the direction of the frequency and slope of the dbh distribution in the Young Growth stand vectors overlay one another and as a result pulls Tabuyog into the early successional grouping.

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