Does refuge spillover affect arthropod food webs associated with Bt maize?,Pest Management Science

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Does refuge spillover affect arthropod food webs associated with Bt maize?
Pest Management Science ( IF 3.8 ) Pub Date : 2021-04-02 , DOI: 10.1002/ps.6388
Vitor Zuim ₁ , Vinicius M. Marques _{1,

2} , Carolina T. D. Godoi _{1,

2} , Lessando M. Gontijo ₂ , Marcelo M. Haro ₃ , Raul Narciso C. Guedes ₁

Affiliation

A high dose/refuge combination is the main tactic recommended for mitigating resistance selection of target herbivore species in crops expressing insecticidal proteins of the bacterium Bacillus thuringiensis (i.e. Bt proteins). The tactic consists of the simultaneous use of Bt crops expressing high levels of the Bt protein associated with neighboring areas of refuge of the same non-Bt crop species. Nonetheless, the approach faces controversy regarding its effectiveness and scale of adoption, at least in some regions. One concern focuses on its potential impact on the arthropod community, including its short-term and spatially dependent impact considering the likely biota spillover effect between Bt and non-Bt neighboring areas. Thus, the eventual spillover of Bt maize targeted and non-targeted arthropods was surveyed along transects extending from the refuge border to the center of the Bt maize area.

中文翻译：

避难所溢出是否影响与 Bt 玉米相关的节肢动物食物网？

在表达苏云金芽孢杆菌杀虫蛋白的作物中，高剂量/避难所组合是减少目标食草动物抗性选择的主要策略（即 Bt 蛋白）。该策略包括同时使用表达高水平 Bt 蛋白的 Bt 作物，这些作物与同一非 Bt 作物物种的邻近避难区相关。尽管如此，该方法在其有效性和采用规模方面仍面临争议，至少在某些地区如此。一个关注点集中在其对节肢动物群落的潜在影响，包括考虑到 Bt 和非 Bt 邻近地区之间可能的生物群溢出效应，其短期和空间依赖性影响。因此，Bt 玉米目标和非目标节肢动物的最终溢出沿从避难边界延伸到 Bt 玉米区域中心的横断面进行了调查。

更新日期：2021-06-10

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