Open Access

Erratum to: Phylogeny and divergence of the pinnipeds (Carnivora: Mammalia) assessed using a multigene dataset

  • Jeff W Higdon1,
  • Olaf RP Bininda-Emonds2Email author,
  • Robin MD Beck3 and
  • Steven H Ferguson4
BMC Evolutionary Biology20088:216

DOI: 10.1186/1471-2148-8-216

Received: 27 June 2008

Accepted: 24 July 2008

Published: 24 July 2008

The Research article to this article has been published in BMC Evolutionary Biology 2007 7:216

After publication of our article [1], we discovered that one of the programs used to date the supertree, relDate v2.2 [2], contained a bug that can lead to errors in the date estimates it provides. The precise effect of the bug is dependent on tree shape, but it generally results in overestimates of divergence-time estimates, particularly for nodes that are closer topologically to the tips of the tree. It can potentially, however, affect every date estimate on a tree.

Fortunately, the impact of the bug on date estimates in the pinniped supertree was minimal. Only 14 of the 35 nodes were affected, with the mean and median absolute errors for the dates of these 14 nodes being 0.19 and 0.10 million years (= 8.9% and 6.1% relative to the corrected date). All but one error (that for node 14) were overestimates. The largest difference was 0.5 million years (for node 6), and the two sets of dates are perfectly correlated with one another (correlation coefficient = 1.000, Z = 28.508, P < 0.0001).

Corrected dates and 95% confidence-interval dates for all nodes in the pinniped supertree can be found in Table 1 and should be used in place of those reported in the original publication [1]. We apologize for any inconvenience this error might cause.
Table 1

Published and corrected divergence dates for the world's pinnipeds as determined by the relDate method.

   

Confidence-interval dates

Node

Published date

Corrected date (SE)

Lower

Upper

1

43.4

43.4

43.4

43.4

2

35.7

35.7

30.6

40.9

3

23.0

23.0

20.3

25.7

4

18.0

18.0

15.3

20.7

5

8.2

8.2

6.0

12.3

6

6.1

5.6

4.8

6.5

7

5.2

5.2

4.0

6.3

8

4.5

4.4

3.9

5.4

9

4.3

4.2

3.7

5.2

10

3.4

3.3

2.7

5.1

11

3.2

3.1

2.4

5.0

12

3.1

3.0

0.6

4.9

13

1.1

1.1

0.5

1.6

14

0.7

0.8

0.3

0.8

15

0.1

0.1

0.2

0.1

16

0.3

0.3

0.3

0.3

17

4.5

4.5

3.5

5.3

18

16.0

16.0

14.2

17.8

19

13.0

13.0

11.2

14.7

20

8.0

7.9

7.1

8.7

21

6.4

6.4

5.6

7.1

22

2.4

2.1

1.6

2.9

23

2.2

1.9

1.4

2.7

24

2.1

1.8

1.2

2.3

25

2.0

1.7

1.1

2.0

26

1.1

0.9

0.6

1.3

27

4.3

4.3

3.3

5.3

28

11.3

11.3

10.1

12.5

29

10.0

9.9

8.7

11.2

30

7.1

7.1

6.4

7.7

31

6.8

6.8

6.3

7.3

32

4.3

4.3

3.2

5.4

33

2.3

2.3

0.6

4.0

34

9.9

9.9

9.4

10.5

35

4.9

4.9

4.4

5.3

Node numbers correspond to Figure 1 in Higdon et al. [1]; those where the dates have changed are listed in bold face. All dates (including 95% confidence-interval dates) are in millions of years ago.

Notes

Authors’ Affiliations

(1)
Department of Geography, University of Manitoba
(2)
AG Systematik und Evolutionsbiologie, IBU – Fakultät V, Carl von Ossietzky Universität Oldenburg
(3)
School of Biological, Earth and Environmental Sciences, University of New South Wales
(4)
Fisheries and Oceans Canada

References

  1. Higdon JW, Bininda-Emonds ORP, Beck RM, Ferguson SH: Phylogeny and divergence of the pinnipeds (Carnivora: Mammalia) assessed using a multigene dataset. BMC Evol Biol. 2007, 7: 216-10.1186/1471-2148-7-216.PubMed CentralView ArticlePubMed
  2. Bininda-Emonds ORP, Cardillo M, Jones KE, MacPhee RDE, Beck RMD, Grenyer R, Price SA, Vos RA, Gittleman JL, Purvis A: The delayed rise of present-day mammals. Nature. 2007, 446: 507-512. 10.1038/nature05634.View ArticlePubMed

Copyright

© Higdon et al; licensee BioMed Central Ltd. 2008

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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