Intensified agriculture, a driver of biodiversity loss, can diminish ecosystem functions and their stability. Biodiversity can increase functional redundancy and is expected to stabilize ecosystem functions. Few studies, however, have explored how agricultural intensity affects functional redundancy and its link with ecosystem function stability. Here, within a continental‐wide study, we assess how functional redundancy of seed predation is affected by agricultural intensity and landscape simplification. By combining carabid abundances with molecular gut content data, functional redundancy of seed predation was quantified for 65 weed genera across 60 fields in four European countries. Across weed genera, functional redundancy was reduced with high field management intensity and simplified crop rotations. Moreover, functional redundancy increased the spatial stability of weed seed predation at the field scale. We found that ecosystem functions are vulnerable to disturbances in intensively managed agroecosystems, providing empirical evidence of the importance of biodiversity for stable ecosystem functions across space.

中文翻译：

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集约化农业减少了杂草种子捕食的功能冗余

集约化农业是生物多样性丧失的一个驱动因素，会削弱生态系统的功能及其稳定性。生物多样性可以增加功能冗余，并有望稳定生态系统功能。然而，很少有研究探讨农业集约化如何影响功能冗余及其与生态系统功能稳定性的联系。在这里，在一项全大陆范围的研究中，我们评估了农业强度和景观简化如何影响种子捕食的功能冗余。通过将步甲丰度与分子肠道含量数据相结合，对四个欧洲国家 60 个田地中 65 种杂草属的种子捕食功能冗余进行了量化。在杂草属中，通过高田间管理强度和简化的作物轮作减少了功能冗余。此外，功能冗余增加了田间规模杂草种子捕食的空间稳定性。我们发现，在集约化管理的农业生态系统中，生态系统功能很容易受到干扰，这为生物多样性对于跨空间生态系统功能稳定的重要性提供了经验证据。