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cobi12228-sup-0001-SuppMat.zip253KA generic model of seabird colony growth (Appendix S1), a list of islands in New Zealand with all non-native predators removed (Appendix S2), and a summary of top 5 candidate models investigating the effects of a range of key environmental variables on the probability of detecting a seabird population response (Appendix S3) are available on-line. 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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