Effects of Population Control Strategies on Retention of Genetic Diversity in National Park Service Bison (Bison bison) Herds
نویسندگان
چکیده
.......................................................................................................................................... 3 Introduction..................................................................................................................................... 3 Methods........................................................................................................................................... 5 Demographic processes and parameter estimation ..................................................................... 5 Model treatments ........................................................................................................................ 6 Evaluation of model output......................................................................................................... 7 Initial conditions and simulation procedures .............................................................................. 8 Results............................................................................................................................................. 8 Treatments and demographic effects .......................................................................................... 8 Changes in genetic variation....................................................................................................... 9 Discussion..................................................................................................................................... 10 Measuring changes in genetic variation.................................................................................... 10 Managing populations and genetic variation ............................................................................ 12 Interpreting model results ......................................................................................................... 14 Summary and recommendations............................................................................................... 14 Acknowledgements....................................................................................................................... 15 References..................................................................................................................................... 15 Figures .................................................................................................. 19 26 Appendix 1. Sensitivity analyses: effects of sex ratio and proportion of cow-calf pairs in removals on retention of genetic diversity.................................................................................... 26 Cow-calf removals, sex ratio, and H0 ....................................................................................... 26 Effects of sex ratio cow-calf removals ................................................................................... 28 Effects of sex ratio cow-calf removals ................................................................................... 29 Effects of sex ratio cow-calf removals ................................................................................... 30 Effects of sex ratio – random removals .................................................................................... 30 Relative effects of vital rates and genetic constitution ............................................................. 34
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