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Management of cats and rodents on inhabited islands: An overview and case study of Fernando de Noronha, Brazil
Perspectives in Ecology and Conservation ( IF 4.0 ) Pub Date : 2018-11-10 , DOI: 10.1016/j.pecon.2018.10.005
James C. Russell , Carlos R. Abrahão , Jean C.R. Silva , Ricardo A. Dias

In this paper, an overview of introduced cat and rodent impacts on islands, and methods for their control and eradication, are presented. Fernando de Noronha, an inhabited oceanic island of Brazil, is used as a case study to illustrate the challenges of cat and rodent management on inhabited islands. Cat impacts have been recorded for 175 vertebrate species, and rat impacts for 173 plant and animal species. Eradication of cats and rodents for species conservation has been successful on small to medium- sized uninhabited or sparsely inhabited islands. However, examples of successful cat and rodent management programmes for biodiversity on inhabited islands are limited. On inhabited islands localised control of cats and rodents occurs, but historically with a focus on agriculture, human livelihoods and animal welfare, and only more recently on native species conservation. Control of cats and rodents on inhabited islands for species conservation lags behind uninhabited islands and the reasons for this are social and complex. Conservation managers often perceive a lack of support from island residents or administrators, which may or may not actually be the case. Where support does not exist, it may relate to the provisioning of control versus eradication, the techniques proposed, or wider socioeconomic issues. This ultimately translates to conservation inaction, and the ongoing decline and extinction of island fauna. Abundance estimates for cats and density estimates for rats on Fernando de Noronha are presented, along with documented biodiversity impacts, to support recommendations for future management on Fernando de Noronha.



中文翻译:

居住岛屿上猫和啮齿动物的管理:巴西费尔南多·德诺罗尼亚群岛的概述和案例研究

本文概述了猫和啮齿动物对岛屿的影响以及它们的控制和根除方法。有人居住的巴西海洋岛费尔南多·德·诺罗尼亚(Fernando de Noronha)被作为案例研究来说明对有人居住的岛屿进行猫和啮齿动物管理的挑战。记录了175种脊椎动物对猫的影响,对173种动植物物种对大鼠的影响。在中小型无人岛或人烟稀少的岛屿上,根除猫和啮齿类动物的物种已经取得了成功。但是,在有人居住的岛屿上成功实施猫和啮齿动物生物多样性管理计划的例子很有限。在有人居住的岛屿上,发生了对猫和啮齿动物的局部控制,但历史上的重点是农业,人类生计和动物福利,只是最近才有关于本地物种保护的信息。在有人居住的岛屿上控制猫和啮齿动物以保护物种落后于无人居住的岛屿,其原因是社会和复杂的。养护管理人员常常感觉到岛屿居民或管理人员缺乏支持,实际上可能是,也可能不是。如果不存在支持,则可能与控制与根除,提议的技术或更广泛的社会经济问题有关。最终,这转化为无保护行动,以及岛屿动物群不断减少和灭绝。介绍了费尔南多·德诺罗尼亚群岛上猫的丰度估计值和大鼠的密度估计,以及已记录的生物多样性影响,以支持对费尔南多·德诺罗尼亚群岛未来管理的建议。在有人居住的岛屿上控制猫和啮齿动物以保护物种落后于无人居住的岛屿,其原因是社会和复杂的。养护管理人员常常感觉到岛屿居民或管理人员缺乏支持,实际上可能是,也可能不是。在没有支持的地方,它可能与控制与根除,提议的技术或更广泛的社会经济问题有关。最终,这转化为无保护行动,以及岛屿动物群不断减少和灭绝。介绍了费尔南多·德诺罗尼亚群岛上猫的丰度估计值和大鼠的密度估计,以及已记录的生物多样性影响,以支持今后对费尔南多·德诺罗尼亚群岛进行管理的建议。在有人居住的岛屿上控制猫和啮齿动物以保护物种落后于无人居住的岛屿,其原因是社会和复杂的。养护管理人员常常感觉到岛屿居民或管理人员缺乏支持,实际上可能是,也可能不是。在没有支持的地方,它可能与控制与根除,提议的技术或更广泛的社会经济问题有关。最终,这转化为无保护行动,以及岛屿动物群不断减少和灭绝。介绍了费尔南多·德诺罗尼亚群岛上猫的丰度估计值和大鼠的密度估计,以及已记录的生物多样性影响,以支持对费尔南多·德诺罗尼亚群岛未来管理的建议。

更新日期:2018-11-10
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