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首页> 外文期刊>Pest Management Science >Population recovery of a common vole population (Microtus arvalis) after population collapse
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Population recovery of a common vole population (Microtus arvalis) after population collapse

机译：人口崩溃后普通群种群（Microotus Arvalis）的人口恢复

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BACKGROUND Population collapses in small mammals occur naturally after natural disasters and during multi-annual population fluctuations as well as after man-made intervention such as rodent management action. Although there has been extensive previous work on patterns and mechanisms of population fluctuations and cyclicity, little is known about population recovery after collapse. In Europe, the common vole (Microtus arvalis) is the major pest species in agriculture, damaging crops, competing with livestock and potentially posing a health risk to people. In this study, we investigated population recovery, recovery mechanism and recovery time of common vole populations after artificially inducing a collapse through rodenticide application. RESULTS The rodenticide treatment reduced abundance in spring (by about 90%) but not in summer. Demographic data (age, sex-ratio, breeding activity) suggest that it was mostly immigration and not reproduction that led to population recovery after collapse. CONCLUSIONS The findings indicate that rodenticide treatment should be conducted in spring before the main reproductive season starts. The treatment effect was transient and lasted for about 3 months before immigration offset the initial reduction in population abundance. This indicates that immigration patterns should be considered by managing vole populations at an appropriate spatial scale and frequency to prevent rapid repopulation. (c) 2018 Society of Chemical Industry
机译：背景文群在自然灾害和多年人口波动期间自然发生的小型哺乳动物，以及在啮齿动物管理行动等人造干预之后。虽然以前的人口波动和循环的模式和机制有广泛的工作，但崩溃后的人口恢复很少。在欧洲，普通的牧群（Microtus Arvalis）是农业，破坏性农作物的主要害虫物种，与牲畜竞争，潜在地对人们造成健康风险。在这项研究中，我们在人工诱导通过寄生虫应用后调查了普通血对群体的人口回收率，恢复机制和恢复时间。结果冠状病治疗在春季（约90％）降低丰度但在夏季。人口统计数据（年龄，性别比率，育种活动）表明它主要是移民而不是繁殖，导致崩溃后的人口恢复。结论研究结果表明，在主要生殖季节开始之前，应在春季进行鼠李治疗。治疗效果是短暂的，在移民抵消人口丰富的初步降低之前，持续时间约为3个月。这表明通过在适当的空间尺度和频率下管理vole群体来考虑移民模式，以防止快速重新灌注。 （c）2018化学工业协会

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