Ecological Archives M075-009-A4

Bruce E. Kendall, Stephen P. Ellner, Edward McCauley, Simon N. Wood, Cheryl J. Briggs, William W. Murdoch, and Peter Turchin. 2005. Population cycles in the pine looper moth: Dynamical tests of mechanistic hypotheses. Ecological Monographs 75:259–276.

Appendix D. Bootstrap distributions.

The parametric bootstrap distributions for comparing the maternal effects model to the constrained parasitism model are shown in Fig. D1, and for comparing the maternal effects model to the food quality model are shown in Fig. D2.

 
   FIG. D1. Results of parametric bootstrap comparing the constrained two-parasitoid model with the maternal effects model for Culbin, Roseisle, and Tentsmuir. In each panel the dashed line is the difference in LL (maternal-constrained parasitoid) for the actual data; the histogram shows the frequency distribution of the same quantity over 25 parametric bootstrap time series generated by the best-fit constrained parasitoid model. The Culbin distribution is based on 50 bootstrap replicates.

 

 
   FIG. D2. Parametric bootstrap comparison of maternal effects vs. food quality models, as in the previous figure.

 



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