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Integrating feral cat (Felis catus) control into landscape-scale introduced predator management to improve conservation prospects for threatened fauna: a case study from the south coast of Western Australia
Wildlife Research ( IF 1.9 ) Pub Date : 2020-01-01 , DOI: 10.1071/wr19217
S. Comer , L. Clausen , S. Cowen , J. Pinder , A. Thomas , A. H. Burbidge , C. Tiller , D. Algar , P. Speldewinde

Abstract Context Feral cat predation has had a significant impact on native Australian fauna in the past 200 years. In the early 2000s, population monitoring of the western ground parrot showed a dramatic decline from the pre-2000 range, with one of three meta-populations declining to very low levels and a second becoming locally extinct. We review 8 years of integrated introduced predator control, which trialled the incorporation of the feral cat bait Eradicat® into existing fox baiting programs. Aims To test the efficacy of integrating feral cat control into an existing introduced predator control program in an adaptive management framework conducted in response to the decline of native species. The objective was to protect the remaining western ground parrot populations and other threatened fauna on the south coast of Western Australia. Methods A landscape-scale feral cat and fox baiting program was delivered across south coast reserves that were occupied by western ground parrots in the early 2000s. Up to 500 000 ha of national parks and natures reserves were baited per annum. Monitoring was established to evaluate both the efficacy of landscape-scale baiting in management of feral cat populations, and the response of several native fauna species, including the western ground parrot, to an integrated introduced predator control program. Key results On average, 28% of radio-collared feral cats died from Eradicat® baiting each year, over a 5-year period. The results varied from 0% to 62% between years. Changes in site occupancy by feral cats, as measured by detection on camera traps, was also variable, with significant declines detected after baiting in some years and sites. Trends in populations of native fauna, including the western ground parrot and chuditch, showed positive responses to integrated control of foxes and cats. Implications Landscape-scale baiting of feral cats in ecosystems on the south coast of Western Australia had varying success when measured by direct knockdown of cats and site occupancy as determined by camera trapping; however, native species appeared to respond favourably to integrated predator control. For the protection of native species, we recommend ongoing baiting for both foxes and feral cats, complemented by post-bait trapping of feral cats. We advocate monitoring baiting efficacy in a well designed adaptive management framework to deliver long-term recovery of threatened species that have been impacted by cats.

中文翻译:

将野猫(Felis catus)控制纳入景观尺度引入捕食者管理以改善受威胁动物群的保护前景:来自西澳大利亚南海岸的案例研究

摘要背景 在过去的 200 年里,野猫的捕食对澳大利亚本土动物群产生了重大影响。在 2000 年代初期,对西部地鹦鹉的种群监测显示,与 2000 年之前的范围相比,出现了急剧下降,三个元种群中的一个下降到非常低的水平,另一个在当地灭绝。我们回顾了 8 年的综合引入捕食者控制,它尝试将野猫诱饵 Eradicat® 纳入现有的狐狸诱饵计划。目的 测试将野猫控制整合到现有引入的捕食者控制计划中的有效性,该计划是针对本地物种减少而实施的适应性管理框架。目标是保护西澳大利亚南海岸剩余的西部地面鹦鹉种群和其他受威胁的动物群。方法 在 2000 年代初期,在西部地鹦鹉占据的南部海岸保护区实施了景观规模的野猫和狐狸诱饵计划。每年有多达 500 000 公顷的国家公园和自然保护区被用作诱饵。建立监测以评估景观规模诱饵在野猫种群管理中的功效,以及包括西部地鹦鹉在内的几种本地动物群对综合引入的捕食者控制计划的反应。主要结果 平均而言,在 5 年的时间里,每年有 28% 的戴无线电项圈的野猫死于 Eradicat® 诱饵。不同年份的结果从 0% 到 62% 不等。通过对相机陷阱的检测来衡量,野猫在场地占用的变化也是可变的,在某些年份和场地进行诱饵后检测到显着下降。本地动物群的趋势,包括西部地鹦鹉和丘迪奇,对狐狸和猫的综合控制表现出积极的反应。影响 西澳大利亚南海岸生态系统中野猫的景观规模诱饵在通过直接击倒猫和由相机捕获确定的场地占用来衡量时取得了不同的成功;然而,本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。包括西部地鹦鹉和丘迪奇,对狐狸和猫的综合控制表现出积极的反应。影响 西澳大利亚南海岸生态系统中野猫的景观规模诱饵在通过直接击倒猫和由相机捕获确定的场地占用来衡量时取得了不同的成功;然而,本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。包括西部地鹦鹉和丘迪奇,对狐狸和猫的综合控制表现出积极的反应。影响 西澳大利亚南海岸生态系统中野猫的景观规模诱饵在通过直接击倒猫和由相机捕获确定的场地占用来衡量时取得了不同的成功;然而,本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。影响 西澳大利亚南海岸生态系统中野猫的景观规模诱饵在通过直接击倒猫和由相机捕获确定的场地占用来衡量时取得了不同的成功;然而,本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。影响 西澳大利亚南海岸生态系统中野猫的景观规模诱饵在通过直接击倒猫和由相机捕获确定的场地占用来衡量时取得了不同的成功;然而,本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。本地物种似乎对综合捕食者控制反应良好。为了保护本地物种,我们建议对狐狸和野猫进行持续诱饵,并辅以诱饵后诱捕野猫。我们提倡在精心设计的适应性管理框架中监测诱饵效果,以实现受猫影响的受威胁物种的长期恢复。
更新日期:2020-01-01
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