Does evolutionary innovation in pharyngeal jaws lead to rapid lineage diversification in labrid fishes?

Table 4 The tempo of labrid diversification.

# of shifts	clade	r	ε	AIC	ΔAIC
0 (whole-tree birth-death model)	whole tree	0.053	0.912	307.76
1	1 (Scarus + Chlorurus)	0.100	0.954	301.45	6.41
2	2 ('fast' julidines)	0.199	0.000	284.21	17.24
--	background	0.086	0.000	--	--

Clade number refers to rate shifts identified in Fig. 2. r is the net diversification rate, ε is the extinction fraction (d/b). AIC and ΔAIC show improvement of AIC score over a constant rates birth-death model as clades are allowed to change rates. Background shows background rates of other labrid clades under the two-rate model.

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