Keep your enemies closer: enhancing biological control through individual movement rules to retain natural enemies inside the field

IF 2.3 3区 环境科学与生态学 Q2 ECOLOGY Web Ecology Pub Date : 2019-01-16 DOI:10.5194/WE-19-15-2019
T. Delattre, B. Collard, C. Lavigne
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引用次数: 3

Abstract

Abstract. Biological control of pests aims at lowering population levels of pest species by favouring natural enemies, in order to reduce the use of pesticides. The movement behaviour of natural enemies is decisive in the success of biological control: when low habitat quality hinders the diffusion of natural enemies from the border, the density of natural enemies may frequently be heterogeneous inside agricultural plots. We hypothesise that the specific relationship between habitat quality and movement behaviour may allow the improvement of biological control by means of a careful allocation of habitat qualities inside and around the plot. We used three tested individual-based movement models, with different levels of complexity ranging from simple cell-to-cell movements to complex strategies including the sinuosity of the path, boundary crossings, perceptual range, and directional persistence. We used the models to explore how the manipulation of habitat quality may allow significant improvements to the residence time of natural enemies inside the field. We suggest that existing field designs are generally inadequate to retain natural enemies. Mechanistic explanations leading to the highest and lowest residence times are used to draw specific management recommendations.
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让你的敌人更近:通过个人移动规则加强生物控制,将天敌留在野外
摘要生物防治害虫的目的是通过偏爱天敌来降低害虫的数量,从而减少农药的使用。天敌的移动行为对生物控制的成功起着决定性的作用:当低生境质量阻碍了天敌从边界扩散时,在农业地块内,天敌的密度可能经常是异质的。我们假设栖息地质量和运动行为之间的特定关系可以通过在地块内部和周围仔细分配栖息地质量来改善生物控制。我们使用了三种经过测试的基于个体的运动模型,它们具有不同的复杂程度,从简单的细胞到细胞的运动到复杂的策略,包括路径的弯曲度、边界交叉、感知范围和方向持久性。我们使用这些模型来探索如何操纵生境质量可以显著改善田间天敌的停留时间。我们认为现有的野外设计通常不足以保留天敌。导致最高和最低居住时间的机械解释被用来得出具体的管理建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Web Ecology
Web Ecology Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
4.60
自引率
0.00%
发文量
6
审稿时长
17 weeks
期刊介绍: Web Ecology (WE) is an open-access journal issued by the European Ecological Federation (EEF) representing the ecological societies within Europe and associated members. Its special value is to serve as a publication forum for national ecological societies that do not maintain their own society journal. Web Ecology publishes papers from all fields of ecology without any geographic restriction. It is a forum to communicate results of experimental, theoretical, and descriptive studies of general interest to an international audience. Original contributions, short communications, and reviews on ecological research on all kinds of organisms and ecosystems are welcome as well as papers that express emerging ideas and concepts with a sound scientific background.
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