Table 2.

Results from DEC* analysis of geographic range evolution on the Distichodus phylogeny. Results are presented for each of the three analyses based on different BEAST2 input chronograms (derived from analyses 5, 8, and 14). Comparison of alternative models (biogeographic hypotheses) and their support as assessed via Akaike weights. M0 (unconstrained, dispersal to and from the Congo Basin); M1 (allowing only dispersal out of the Congo Basin); M2 (allowing only dispersal into the Congo Basin); dispersal (d); extinction (e); number of parameters (k); Akaike information criterion (AIC); Akaike Weights (AW)

Input chronogram	Hypotheses (constraints)	lnL	Parameter estimates			AIC analysis
			k	d	e	AIC	AW
Analysis 5	M0	−52.01724	2	0.01911367	0.10630582	108.03450	0.08844
	M1	−49.86777	2	0.02413022	0.10000542	103.73550	0.75880
	M2	−51.47061	2	0.01772728	0.02239203	106.94120	0.15277
Analysis 8	M0	−52.19156	2	0.01734394	0.0977318	108.38310	0.08778
	M1	−49.87853	2	0.02169815	0.09103859	103.75710	0.88703
	M2	−53.44013	2	0.01639595	0.02140229	110.88030	0.02519
Analysis 14	M0	−52.17641	2	0.006007077	0.033905864	108.35280	0.08558
	M1	−49.83422	2	0.007466523	0.03069	103.66840	0.89043
	M2	−53.44833	2	0.005663481	0.007312191	110.89670	0.02399