Teacher toads: Buffering apex predators from toxic invaders in a remote tropical landscape

IF 7.7 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION
Georgia Ward-Fear, Bunuba Rangers, Miles Bruny, Corrin Everitt, Richard Shine
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Abstract

Even after research identifies new approaches for wildlife management, translating those methods for delivery can be logistically challenging. In tropical Australia, invasive cane toads (Rhinella marina) fatally poison many anuran-eating native predators. Small-scale trials show that vulnerable predators exposed to small (nonlethal) toads can learn to delete toads from their diets, increasing survival of those predators after toads invade. We deployed this method in the remote Kimberley region of tropical Australia, with >200,000 eggs, tadpoles, or metamorph toads released in advance of the expanding toad invasion front. Remote camera surveys before and after “teacher toad” deployment showed that large monitor lizards (Varanus panoptes) were almost extirpated from control plots but remained abundant in treatment plots, indicating broad-scale success of this novel intervention.

Abstract Image

蟾蜍教师:在偏远的热带地区缓冲顶级捕食者与有毒入侵者之间的冲突
即使研究发现了野生动物管理的新方法,但要将这些方法转化为实际应用,在后勤方面也是一项挑战。在澳大利亚热带地区,入侵的甘蔗蟾蜍(Rhinella marina)会对许多吃无尾类动物的本地捕食者造成致命毒害。小规模试验表明,接触到小型(非致命)蟾蜍的脆弱捕食者可以学会将蟾蜍从它们的食物中删除,从而在蟾蜍入侵后提高这些捕食者的存活率。我们在澳大利亚热带偏远的金伯利地区部署了这种方法,在蟾蜍入侵前线扩大之前释放了20万只卵、蝌蚪或变态蟾蜍。在部署 "蟾蜍教师 "前后进行的远程摄像调查显示,大型巨蜥(Varanus panoptes)在对照地块几乎绝迹,但在处理地块仍然大量存在,这表明这种新颖的干预措施在大范围内取得了成功。
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来源期刊
Conservation Letters
Conservation Letters BIODIVERSITY CONSERVATION-
CiteScore
13.50
自引率
2.40%
发文量
70
审稿时长
>12 weeks
期刊介绍: Conservation Letters is a reputable scientific journal that is devoted to the publication of both empirical and theoretical research that has important implications for the conservation of biological diversity. The journal warmly invites submissions from various disciplines within the biological and social sciences, with a particular interest in interdisciplinary work. The primary aim is to advance both pragmatic conservation objectives and scientific knowledge. Manuscripts are subject to a rapid communication schedule, therefore they should address current and relevant topics. Research articles should effectively communicate the significance of their findings in relation to conservation policy and practice.
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