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Glyphosate-based herbicides reduced overwintering population and reproduction of agrobiont spiders
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2024-09-10 , DOI: 10.1016/j.jhazmat.2024.135782 Na Yu 1 , Jingjing Li 2 , Yunru Chen 1 , Yunchao Wang 2 , Zonglei Guo 1 , Zewen Liu 1
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2024-09-10 , DOI: 10.1016/j.jhazmat.2024.135782 Na Yu 1 , Jingjing Li 2 , Yunru Chen 1 , Yunchao Wang 2 , Zonglei Guo 1 , Zewen Liu 1
Affiliation
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Spiders are important in ecosystem and serve as predators in the biological control of pest insects in agroecosystem, where they encounter various harsh challenges including pesticides and low temperature in winter. Glyphosate-based herbicides (GBH) are widely and frequently applied to diminish weeds, exposing spiders a disturbed habitat, especially to overwintering spiders. We conducted a study combining field surveys and lab assays, to assess the effects of a GBH on the overwintering of the agrobiont wolf spider, Pardosa pseudoannulata . The GBH significantly reduced the overall overwintering spider population by about 69 %, and reduced the number of vulnerable juveniles by about 80 %. The survivors exhibited substantial fitness costs such as reproductive dysfunctions and enhanced oxidative stress responses. We then mimicked the overwinter process in lab. We housed spiders on soil patches with and without weeds to examine whether weeds contributed to the GBH’s sublethal effects. Spiders overwintered independent of weeds when GBH was not applied. When GBH was applied before or during overwintering, juvenile spiders overwintered in weedy habitats exhibited reduced survival and fecundity, and increased oxidative stress compared to their counterparts in weed-free habitats. Therefore, GBH-containing weeds contributed to the persistent adverse effects of GBH on overwintering spiders. The findings revealed the cross-talk among weeds, herbicides, low temperature, and non-target organisms. The study provides novel information on the environmental risk assessment of pesticides and rational scheduling of pesticide application.
中文翻译：
基于草甘膦的除草剂减少了 agrobiont 蜘蛛的越冬种群和繁殖
蜘蛛在生态系统中发挥着重要作用，在农业生态系统中作为害虫生物防治的捕食者，在农业生态系统中遇到包括杀虫剂和冬季低温在内的各种严峻挑战。基于草甘膦的除草剂 （GBH） 被广泛且频繁地用于减少杂草，使蜘蛛的栖息地受到干扰，尤其是越冬蜘蛛。我们进行了一项结合实地调查和实验室分析的研究，以评估 GBH 对 agrobiont 狼蛛 Pardosa pseudoannulata 越冬的影响。GBH 显着减少了总越冬蜘蛛数量约 69 %，并将脆弱的幼蛛数量减少了约 80%。幸存者表现出大量的健身成本，例如生殖功能障碍和增强的氧化应激反应。然后，我们在实验室中模拟了越冬过程。我们将蜘蛛安置在有和没有杂草的土壤斑块上，以检查杂草是否有助于 GBH 的亚致死效应。当不施用 GBH 时，蜘蛛独立于杂草越冬。当在越冬前或越冬期间施用 GBH 时，与无杂草栖息地中的幼蛛相比，在杂草栖息地越冬的幼年蜘蛛表现出存活率和繁殖力降低，氧化应激增加。因此，含 GBH 的杂草导致了 GBH 对越冬蜘蛛的持续不利影响。研究结果揭示了杂草、除草剂、低温和非目标生物之间的串扰。该研究为农药的环境风险评估和农药施用的合理安排提供了新的信息。
更新日期：2024-09-10
中文翻译：
基于草甘膦的除草剂减少了 agrobiont 蜘蛛的越冬种群和繁殖
蜘蛛在生态系统中发挥着重要作用，在农业生态系统中作为害虫生物防治的捕食者，在农业生态系统中遇到包括杀虫剂和冬季低温在内的各种严峻挑战。基于草甘膦的除草剂 （GBH） 被广泛且频繁地用于减少杂草，使蜘蛛的栖息地受到干扰，尤其是越冬蜘蛛。我们进行了一项结合实地调查和实验室分析的研究，以评估 GBH 对 agrobiont 狼蛛 Pardosa pseudoannulata 越冬的影响。GBH 显着减少了总越冬蜘蛛数量约 69 %，并将脆弱的幼蛛数量减少了约 80%。幸存者表现出大量的健身成本，例如生殖功能障碍和增强的氧化应激反应。然后，我们在实验室中模拟了越冬过程。我们将蜘蛛安置在有和没有杂草的土壤斑块上，以检查杂草是否有助于 GBH 的亚致死效应。当不施用 GBH 时，蜘蛛独立于杂草越冬。当在越冬前或越冬期间施用 GBH 时，与无杂草栖息地中的幼蛛相比，在杂草栖息地越冬的幼年蜘蛛表现出存活率和繁殖力降低，氧化应激增加。因此，含 GBH 的杂草导致了 GBH 对越冬蜘蛛的持续不利影响。研究结果揭示了杂草、除草剂、低温和非目标生物之间的串扰。该研究为农药的环境风险评估和农药施用的合理安排提供了新的信息。
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