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The Fox and the Crow. A need to update pest control strategies
Biological Conservation ( IF 5.9 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.biocon.2020.108693
Frédéric Jiguet 1
Affiliation  

Abstract The recent discovery that cats and mustelids can be infected by SARS-CoV-2 may raise the question of monitoring domestic, feral and wild populations of such animals, as an adjunct to the elimination of COVID-19 in humans. Emergency solutions might consider large scale control of these animals in the wild. However, looking at science recently published on native vertebrate pest control reveals first that usual controls do not succeed in reducing animal numbers and associated damages, second that controlling can be counter-productive in increasing the infectious risks for humans and livestock. The examples of red fox and corvids are detailed in a European context, illustrating the urgent need for an ethical evaluation of ecological and economic costs and benefits of pest control strategies. A complete scientific evaluation process must be implemented and up-dated regularly, to be organized in four major steps, once the aim of the control strategy has been defined: (1) evaluating damages/risks caused by the animals, to be balanced with the ecosystem services they may provide, also in terms of economic costs; (2) unravelling spatial and temporal population dynamics of target animals to identify, if any, optimal control scenarios – which could be done within an adaptive management framework; (3) estimating the economic costs of implementing those optimal control scenarios, to be compared to the economic costs of damages/diseases; (4) finally evaluating how the control strategy reached its aims. A modern fable of the Fox and the Crow should deliver a timely moral for an ethical, ecological and economical appraisal of pest control strategies in Europe.

中文翻译:

狐狸和乌鸦。需要更新害虫控制策略

摘要 最近发现猫和鼬科动物可被 SARS-CoV-2 感染,这可能会引发监测此类动物的家养、野生和野生种群的问题,以作为消除人类 COVID-19 的辅助手段。紧急解决方案可能会考虑在野外对这些动物进行大规模控制。然而,看看最近发表的关于本地脊椎动物害虫防治的科学发现,首先,通常的控制不能成功减少动物数量和相关损害,其次,控制可能会适得其反,增加人类和牲畜的传染风险。在欧洲背景下详细介绍了红狐和鸦科动物的例子,说明迫切需要对害虫控制策略的生态和经济成本和收益进行伦理评估。一旦确定了控制策略的目标,就必须实施并定期更新完整的科学评估过程,分为四个主要步骤: (1) 评估动物造成的损害/风险,与它们可能提供的生态系统服务,包括经济成本;(2) 解开目标动物的空间和时间种群动态,以确定最佳控制方案(如果有的话)——这可以在适应性管理框架内完成;(3) 估计实施这些最优控制方案的经济成本,以与损害/疾病的经济成本进行比较;(4) 最后评估控制策略如何达到其目标。狐狸和乌鸦的现代寓言应该为道德、
更新日期:2020-08-01
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