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cobi12279-sup-0001-SupMat.pdf1170KFlowcharts describing the systematic review processes (Appendices S1 and S3), definitions of breeding status and invasive species categories (Appendices S2 and S4), correspondents who provided knowledge about seabirds and/or non-native species for this study (Appendix S5), the 98 threatened island-breeding seabird species (Appendix S6), the 13 threatened seabird species that breed only on islands with non-native species, that lack complete legal protection, and house >1000 people (Appendix S7), and threatened seabird breeding islands, attributes, and conservation opportunities (Appendix S8) 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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