167profile that shows the two measures as a function of temporal perspective T,
0 ≤ T ≤ 10, for q = 0, 1 and 2 separately.
Based on the two phylogenetic differentiation measures, all profiles in Figs. 5
and 6 show consistent patterns. When species/lineages abundances are discounted
(q = 0), the differences among the differentiation measures of the three pairs of
assemblages are not appreciable, as shown in the two left panels in Fig. 6 and in the
initial point in each of profiles in Fig. 5. When species/lineages abundances are
counted (q > 0), the compositional differentiation between Decades I vs. II is gener-
ally close to that between Decades I vs. III, and the differentiation between two
recent decades (Decades II vs. III) is much lower than any of the other two pairs.
This implies that the composition of species/lineage abundances has changed after
- Examining the relative abundances for those dominant species listed in
Fig. 5 (a) Differentiation profiles of the measure 1 - CTqN() and (b) of the measure 1 - UTqN()
as a function of order q, 0 ≤ q ≤ 3, for two specific time perspectives: T = 0 (left panels, correspond-
ing to non-phylogenetic differentiation profiles), and T = 7.9 Myr (right panels, corresponding to
the profiles for the age of the root node of the pooled phylogenetic tree in Fig. 3a) for three pairs
of assemblages (I vs. II, I vs. III, and II vs. III)
Phylogenetic Diversity Measures and Their Decomposition: A Framework Based...