O'Malley Tess D R, Stanley Margaret C, Russell James C
School of Biological Sciences, University of Auckland, Waipapa Taumata Rau, Private Bag 92019, Auckland 1142, New Zealand.
Department of Statistics, University of Auckland, Waipapa Taumata Rau, Private Bag 92019, Auckland 1142, New Zealand.
Animals (Basel). 2022 Jan 27;12(3):309. doi: 10.3390/ani12030309.
Aotearoa-New Zealand has embarked on an ambitious goal: to completely eradicate key invasive mammals by 2050. This will require novel tools capable of eliminating pests on a large scale. In New Zealand, large-scale pest suppression is typically carried out using aerial application of the toxin sodium fluoroacetate (1080). However, as currently applied, this tool does not remove all individuals. A novel application method, dubbed '1080-to-zero', aims to change this and reduce the abundances of target pests to zero or near-zero. One such target is black rats (), an invasive species challenging to control using ground-based methods. This study monitored and compared the response of black rats to a 1080-to-zero operation and a standard suppression 1080 operation. No difference in the efficacy of rat removal was found between the two treatments. The 1080-to-zero operation did not achieve its goal of rat elimination or reduction to near-zero levels, with an estimated 1540 rats surviving across the 2200 ha treatment area. However, 1080 operations can produce variable responses, and the results observed here differ from the only other reported 1080-to-zero operation. We encourage further research into this tool, including how factors such as ecosystem type, mast fruiting and operational timing influence success.
到2050年彻底根除主要的入侵哺乳动物。这将需要能够大规模消灭害虫的新型工具。在新西兰，大规模抑制害虫通常通过空中喷洒毒素氟乙酸钠（1080）来进行。然而，按照目前的应用方式，这种工具并不能消灭所有个体。一种名为“1080归零法”的新型应用方法旨在改变这种情况，并将目标害虫的数量减少到零或接近零。其中一个目标是黑鼠，这是一种使用地面方法难以控制的入侵物种。本研究监测并比较了黑鼠对“1080归零法”行动和标准的1080抑制行动的反应。两种处理方式在灭鼠效果上未发现差异。“1080归零法”行动并未实现消灭黑鼠或将其数量减少到接近零水平的目标，在2200公顷的处理区域内估计有1540只黑鼠存活。然而，1080行动可能会产生不同的反应，此处观察到的结果与其他唯一报道的“1080归零法”行动不同。我们鼓励对这种工具进行进一步研究，包括生态系统类型、果实大年和操作时机等因素如何影响成功率。
