Table 2

Maximum likelihood estimates of peak posterior distribution and 95% highest posterior densities (HPD) of effective population sizes (Ne), effective number of migrants per generation in each direction (2Nm) and time since divergence (t) in million years (Myrs) between A. alosa and A. fallax and between two geographic groups of A. fallax , as inferred with IMa2
Species/Group Ancestral Ne [95%HPD] Ne of descendant populations [95%HPD] 2 Nm [95%HPD] (t) [95%HPD]
A. alosa/A. fallax 189,532 A. alosa: 63,303 Into A. alosa: 2.630*** 1.259
[28,154–386,803]3 [29,692–122,514] [0.486–8.558] [0.294–3.477]4
A. fallax: 228,909 Into A. fallax: 2.300*
[158,862–322,562] [0–9.647]
Mediterranean/Atlantic1 - Mediterranean: 91,749 Into Mediterranean:0.008ns 0.332
[0–348,127]3 [48,560–166,117] [0–2.370] [0.153–1.496]4
Atlantic: 144,733 Into Atlantic: 2.149***
[87,008–231,952] [0.299–6.932]
Mediterranean/Atlantic2 30,830 Mediterranean: 88,180 Into Mediterranean: 0.008ns 0.250
[0–348,094]3 [45,929–163,432] [0–2.538]3 [0.116–1.494]4
Atlantic: 126,331 Into Atlantic: 1.905**
[72,940–212,094] [0.248–6.774]

1all sequences included; 2excluding sequences putatively originated from a third group (Morocco); 3 non-informative HPD because the posterior density does not reach low levels near neither the upper nor the lower limit of the prior; 4HPD interval may be incorrect due to multiple peaks; *Values significantly different from zero at p < 0.05; **p < 0.01; and ***p < 0.001; nsnon significant.

Faria et al.

Faria et al. BMC Evolutionary Biology 2012 12:194   doi:10.1186/1471-2148-12-194

Open Data