当前位置：
X-MOL 学术
›
J. Appl. Ecol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Island invasion and reinvasion: Informing invasive species management with genetic measures of connectivity
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2020-07-30 , DOI: 10.1111/1365-2664.13727 Florian Pichlmueller 1, 2 , Elaine C. Murphy 3 , Jamie W. B. MacKay 1, 4 , John Henderson 5 , Rachel M. Fewster 6 , James C. Russell 1, 6
中文翻译：
岛屿入侵和再入侵：利用遗传连通性措施为入侵物种管理提供信息
更新日期：2020-07-30
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2020-07-30 , DOI: 10.1111/1365-2664.13727 Florian Pichlmueller 1, 2 , Elaine C. Murphy 3 , Jamie W. B. MacKay 1, 4 , John Henderson 5 , Rachel M. Fewster 6 , James C. Russell 1, 6
Affiliation
|
- Invasive species are the major threat to island biodiversity world‐wide. Genetic analyses assist in identifying invasion routes as well as revealing population connectivity, which both represent crucial information for conservation management strategies and risk evaluation. Such information is critical to safeguarding vulnerable species on nearshore islands, which often serve as wildlife sanctuaries.
- The house mouse Mus musculus has invaded islands around the world and is a model species for showcasing how genetic tools can be used to inform biosecurity management. The genetic population structure of 316 mice from 12 locations in the upper South Island of New Zealand was determined, using novel GenePlots and traditional population genetic tools based on 10 microsatellite loci, to identify gene flow and reinvasion pathways among mainland and island populations over a decade.
- On the mainland, populations remained genetically homogeneous over landscape scales of many tens of kilometres. In contrast, historically established island populations only kilometres offshore had low genetic diversity from prolonged isolation. Two islands were potentially colonized from both the mainland and each other in a hybrid swarm.
- Islands that had recently been invaded or reinvaded in the past decade had genetic profiles consistent with the adjacent mainland, suggesting failure of biosecurity procedures to prevent reinvasion, rather than eradication survivors. Although two islands were invaded by only a few individuals, on a third island many invaders simultaneously arrived.
- Synthesis and applications. Assessing the genetic structure and connectivity of mainland and island populations of an invasive species, using a combination of traditional and novel visualization tools, has uncovered a spectrum of invasion mechanisms and pathways. These results have informed ongoing biosecurity measures by revealing the locations and intensities of biosecurity threats, allowing targeted management actions to reduce the likelihood of island reinvasion.
中文翻译：
岛屿入侵和再入侵：利用遗传连通性措施为入侵物种管理提供信息
- 入侵物种是全世界岛屿生物多样性的主要威胁。遗传分析有助于确定入侵途径并揭示种群之间的连通性，这两者都是保护管理战略和风险评估的关键信息。此类信息对于保护通常用作野生动植物保护区的近岸岛屿上的脆弱物种至关重要。
- 家鼠小家鼠在世界各地拥有入侵岛屿，是一个模型物种展示工具如何基因可用于通知生物安全管理。使用新颖的GenePlots和基于10个微卫星基因座的传统种群遗传工具，确定了来自新西兰南岛上层12个地点的316只小鼠的遗传种群结构，以鉴定十年来大陆和岛屿种群之间的基因流动和入侵途径。
- 在大陆，数十万公里的景观尺度上的种群在遗传上仍然是同质的。相反，历史悠久的离岛只有几公里的岛屿人口由于长期隔离而遗传多样性低。有两个岛屿可能在大陆和彼此的殖民地中成群结队。
- 在过去十年中最近被入侵或被入侵的岛屿的遗传特征与邻近大陆一致，这表明生物安全程序无法防止入侵，而不是消灭幸存者。尽管只有几个人入侵了两个岛屿，但在第三个岛屿上，许多入侵者同时抵达。
- 综合与应用。结合传统和新颖的可视化工具，评估入侵物种大陆和岛屿种群的遗传结构和连通性，发现了一系列入侵机制和途径。这些结果通过揭示生物安全威胁的位置和强度，为正在采取的生物安全措施提供了信息，从而有针对性的管理行动可以减少岛屿再次入侵的可能性。
京公网安备 11010802027423号