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首页> 外文期刊>New Zealand Journal of Ecology >A novel device for controlling brushtail possums (Trichosurus vulpecula)
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A novel device for controlling brushtail possums (Trichosurus vulpecula)

机译：一种控制带尾brush的新装置（Trichosurus vulpecula）

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摘要

Pen and small-scale field trials have been completed on a new, long-life, resetting toxin delivery system for brushtail possums (Trichosurus vulpecula). Devices are designed to attract and control possums over long periods of time with minimal input and maintenance. The units are species-specific, lightweight, environmentally robust, and have the ability to control 100 possums before requiring servicing. Devices dispense a measured dose (0.8 g) of a palatable gel containing 12.5% zinc phosphide (Zn3P2) onto a possum's abdomen. Pen trial results demonstrated that after receiving a measured dose from these devices, 89% of nine possums groomed the gel from their fur, ingested it and died. The average time to death following ingestion of a lethal dose of zinc phosphide was 4.6 hours, a comparatively short timeframe compared to other control tools (specifically sodium fluoroacetate, cholecalciferol or brodifacoum). A small-scale field trial deploying 11 devices at 100-m intervals was run in an 11-ha mountain beech (Fuscospora cliffortioides) forest site. A sample of ten possums in the vicinity of these devices were collared with VHF-mortality sensors and, of the nine individuals with known fates, eight were killed shortly after interacting with a resetting delivery system.
机译：针对长尾负鼠（Trichosurus vulpecula）的新型，长寿命，可重置的毒素输送系统，笔和小型现场试验已经完成。设备设计用于在很长一段时间内吸引和控制负鼠，而所需的投入和维护却最少。这些设备具有特定种类，重量轻，对环境友好的特点，并且能够在需要维修之前控制100个负鼠。设备将定剂量（0.8 g）的可口凝胶（含有12.5％的磷化锌（Zn3P2））分配到负鼠腹部上。 Pen的试验结果表明，在从这些设备中获得一定剂量后，九个负鼠中有89％从其毛皮上梳理了凝胶，将其摄入并死亡。摄入致死剂量的磷化锌后，平均死亡时间为4.6小时，与其他对照工具（特别是氟乙酸钠，胆钙化固醇或溴地丁）相比，时间较短。在一个11公顷的山毛榉森林（Fuscospora cliffortioides）的森林中进行了一次小型试验，该试验以100米的间隔部署了11台设备。在这些设备附近的十个负鼠样品中，装有VHF死亡率传感器，在九个已知命运的个体中，有八个在与复位传送系统相互作用后不久被杀死。

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