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Breaking the sticks: a hierarchical change-point model for estimating ontogenetic shifts with stable isotope data
Article first published online: 8 NOV 2011
© 2011 The Authors. Methods in Ecology and Evolution © 2011 British Ecological Society
Methods in Ecology and Evolution
Volume 3, Issue 2, pages 281–290, April 2012
How to Cite
Authier, M., Martin, C., Ponchon, A., Steelandt, S., Bentaleb, I. and Guinet, C. (2012), Breaking the sticks: a hierarchical change-point model for estimating ontogenetic shifts with stable isotope data. Methods in Ecology and Evolution, 3: 281–290. doi: 10.1111/j.2041-210X.2011.00162.x
- Issue published online: 4 APR 2012
- Article first published online: 8 NOV 2011
- Received 9 June 2011; accepted 21 September 2011 Handling Editor: Gabriel Bowen
Fig. S1. Prior for a 4 × 4 covariance matrix. Variances are depicted on, covariances below and correlations above the diagonal respectively.
Fig. S2. Tukey plots of the distributions of dentin carbon and nitrogen isotopic values of Southern Elephant Seals from îles Kerguelen.
Fig. S3. Plots of Prior versus Posterior distributions for the covariance matrix of the hierarchical change-point model (8 × 8).
Fig. S4. Dot plots of the individual coefficients ak2[1:4],j for each individual time serie of d 13C values.
Fig. S5. Dot plots of the individual coefficients ak2[1:4],j for each individual time serie of d15N values.
Fig. S6. Spaghetti plots of the raw data for the Southern Elephant Seal data.
Fig. S7. Curves of posterior means of the hierarchical change-point (broken-stick) model (2 × 4 × 4) for the Southern Elephant Seal data.
Table S1. Summary statistics for the Southern Elephant Seal data on dentin stable isotopic measurements.
Table S2. Deviance Information Criterion (DIC).
Appendix S1. WinBUGS code to fit a hierarchical change-point model.
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