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Table 4 Results of a Bayesian estimation of divergence times

From: A phylogeny for the pomatiopsidae (Gastropoda: Rissooidea): a resource for taxonomic, parasitological and biodiversity studies

Parameter [node on tree]

Mean ± S.E.

ESS

95% HPD (lower – upper)

Relevant predictions

Predictions supported

Hypothesis

tmrca (ingroup) [0]

114.533 ± 0.6187

2703

52.5946 – 176.4489

H1, T1

≤ H1, T1

Both

tmrca (Pomatiopsidae) [[2]]

110.760 ± 0.5864

2703

51.8809 – 170.102

H2, T2

H2

Hunan

tmrca (Pomatiopsinae) [[10]]

59.0213 ± 0.5583

2195

16.9746 – 111.8963

H3, T4

≤ H3

Hunan

tmrca ( Oncomelania ) [[11]]

22.4588 ± 0.2018

2703

15.4905 – 34.7171

H4

≤ H4

Hunan

tmrca (Sunda) [12]

7.925 ± 0.048796

2703

3.9652 – 13.1893

H9, T5

≥ H9

Hunan

tmrca (Thai) [14]

5.963 ± 0.020944

3668.2865

3.621 – 8.469

H11, T7

≥ H11, ≤T7

Both

tmrca (North_Sunda) [18]

5.1588 ± 0.01804

3564.0486

3.1019 – 7.1554

H8, T5, T7

H8, ≤T7

Both

tmrca (Yunnan) [25]

4.1509 ± 0.01424

4270.9393

2.4844 – 5.9712

H14

 

N

tmrca (Malaya) [26]

3.5555 ± 0.01417

2337.4983

2.3954 – 5.0629

H13, T7

≥ H13, ≤ T7

Both

tmrca (Mekong) [41]

2.3658 ± 0.00790

4150.45

1.4563 – 3.3614

H12, T7

H12

Hunan

tmrca (Khorat) [42]

0.8679 ± 0.00140

5406

0.6755 – 1.0775

H15

H15

Hunan

tmrca (Jullieniini) [43]

0.7847 ± 0.00363

5406

0.3492 – 1.3228

H12, T7

 

N

tmrca (Lao) [63]

0.3561 ± 0.00154

4787.2537

0.181 – 0.569

H8, T5

 

N

  1. Time estimates are given in millions of years (Ma) for nodes representing the most recent common ancestor of relevant clades. ESS, effective sample size (i.e., size corrected for auto-correlation); HPD, the 95% highest posterior probability density (equivalent to a confidence interval); SE, standard error of the mean; TMRCA, time to most recent common ancestor of the taxa in the clade. Relevant predictions refers to the numbered predictions in Table 1 for each hypothesis (prefix H refers to the Hunan hypothesis and T refers to the Tibet hypothesis). Entries in bold were estimated by runs for deep divergences and other entries were estimated by runs for more recent divergences. A prediction is supported if it is within the HPD of the date estimated after observation of the data. The final column lists which of the two hypotheses is best supported by the data and analysis (or N in the case that neither hypothesis is consistent with, or relevant to, the parameter estimate, or “Both” where both are consistent). Inequalities symbols indicate where the estimated tmrca is slightly too low (<) or too high (>) but borderline with one or both hypotheses. The tree nodes refer to the phylogeny in Figure 6 and are counted from the root (node 0).