Assessing gaps in reporting non-target mortality in island rodent eradication operations
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Issue date
2019-06-25Submitted date
2020-01-28Subject Terms
Invasive speciesIsland restoration
Non-target
Rallidae
Rodent
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Show full item recordAbstract
Eradicating invasive species is a key part of island restoration, and can reverse the devastating impacts on native biota. Rodents are one of the most widespread invasive species, found on 80% of oceanic island systems, but have been removed from hundreds of islands through the application of anticoagulant-treated cereal bait. While such eradication operations are often net positive events for island ecosystems over the long-term, some native biota are also susceptible, resulting in short-term non-target mortality. One of the most widely distributed groups of birds, rails and allies (Rallidae) are highly adaptable, often endemic, and are known often to suffer mortality during rodent eradication operations, to varying degrees. Our goal was determine if the year of eradication or the size of the island predicted whether non-target mortalities were reported, including those that were true absences of mortality. We examined 122 eradication operations on 81 islands with rails present from 1983 to 2015, and found 78% with no reported information on non-target mortality using our search criteria. We found non-target mortality reporting has decreased over time, and there was no relationship with island size. Post-operational monitoring of eradication operations should thoroughly record non-target mortality to improve our understanding of factors affecting non-target mortality, and the efficacy of mitigation measures.Citation
Ward, S., Fournier, A.M.V. & Bond, A.L. Assessing gaps in reporting non-target mortality in island rodent eradication operations. Biol Invasions 21, 3101–3108 (2019). https://doi.org/10.1007/s10530-019-02032-7Publisher
Springer Science and Business Media LLCJournal
Biological InvasionsType
Journal ArticleItem Description
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The attached file is the published pdf.ISSN
1387-3547EISSN
1573-1464ae974a485f413a2113503eed53cd6c53
10.1007/s10530-019-02032-7
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