Comparison of cichlid assemblages in the common morphospace.

The results of ordered-axis plot comparisons along the first four axes (Mmax-M4) of total shape and its three elements. The percent of the total variance explained by each axis is presented in the first column for each analysis. The axes scores of species from Lakes Malawi (m) and Victoria (v) are regressed on those from Lake Tanganyika (defined as slope = 1, intercept = 0). Assemblages with equal intercepts are centered similarly along the axis. Assemblages with equal slopes are equally diverse along the axis. When statistically equal, the assemblages are in rank order, left to right. Equality is tested using the 99.99% confidence intervals for the slopes and intercepts from 10,000 bootstrapped linear regressions of LM and LV on LT. In parentheses below the results of ordered-axis plot regressions are results of F tests for equal variances (equal slopes) and t-tests for equal means (equal intercept) based on a table wide P = 0.003 = 0.05/16.