Host-parasite interactions during a biological invasion: toads, frogs and nematodes in tropical Australia

生物入侵期间宿主与寄生虫的相互作用：澳大利亚热带地区的蟾蜍、青蛙和线虫

• 批准号: DP0984888
• 负责人: Dr Ligia Pizzatto do Prado
• 金额: $ 20.72万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2009
• 资助国家: 澳大利亚
• 起止时间: 2009-01-21 至 2012-05-23
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0984888
• 关键词: Host; parasite; interactions; during; biological

Cane toads were introduced to Australia 70 years ago, and are widely believed to cause major problems for native ecosystems. My work has identified another impact of cane toads: they have brought some of their native-range parasites with them from Central America, and at least one species (a lungworm) now attacks native Australian frogs. This project will explore the impact of the parasite on native frogs as well as on the toads themselves, and determine why some (but not all) toad populations in Australia have escaped from these viability-reducing parasites. My work will clarify host-parasite coevolution, the ecological impact of invasive organisms, and the feasibility of using parasites to help control toads within Australia.

甘蔗蟾蜍是70年前引入澳大利亚的，人们普遍认为它对当地生态系统造成了重大问题。 我的研究还发现了甘蔗蟾蜍的另一个影响：它们从中美洲带来了一些本地寄生虫，现在至少有一种（肺虫）会攻击澳大利亚本地的青蛙。 该项目将探索寄生虫对本地青蛙以及蟾蜍本身的影响，并确定为什么澳大利亚的一些（但不是全部）蟾蜍种群逃脱了这些降低生存能力的寄生虫。 我的工作将阐明宿主-寄生虫的共同进化，入侵生物的生态影响，以及利用寄生虫帮助控制澳大利亚境内蟾蜍的可行性。