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cobi12329-sup-0001-SupMat.pdf420KExperimental set up and sampling (Appendix S1), effect of search regularity on the accuracy of extinction estimates (Appendix S2), brief summaries of each of the methods (Appendix S3), probability of extinction on a method-by-method basis (Appendix S4), interaction between small population size and rate of decline on the accuracy of estimates (Appendix S5), and overall accuracy of methods based on wild population data (Appendix S6) are available online. The authors are solely responsible for the content and functionality of these materials. Queries (other than absence of the material) should be directed to the corresponding author.

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