Carabid beetles are major predators in agro‐ecosystems. The composition of their communities within crop environments governs the pest control services they provide. An understudied aspect is the distribution of predacious carabid larvae in the soil. We used novel subterranean trapping with standard pitfall trapping, within a multi‐crop rotation experiment, to assess the responses of above‐ and below‐ground carabid communities to management practices. Crop and trap type significantly affected pooled carabid abundance with an interaction of the two, the highest numbers of carabids were caught in subterranean traps in barley under sown with grass. Trap type accounted for the most variance observed in carabid community composition, followed by crop. Tillage responses were only apparent at the species level for three of the eight species modelled. Responses to crop type varied by species. Most species had higher abundance in under‐sown barley, than grass, wheat and barley. Crop differences were greater in the subterranean trap data. For predaceous larvae, standard pitfalls showed lowest abundances in under‐sown barley, yet subterranean traps revealed abundances to be highest in this crop. Comprehensive estimation of ecosystem services should incorporate both above‐ and below‐ground community appraisal, to inform appropriate management.

中文翻译：

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Carabid 社区对作物类型和耕作的反应的地上和地下评估

甲虫是农业生态系统中的主要捕食者。他们在作物环境中的社区组成决定了他们提供的虫害防治服务。一个未充分研究的方面是土壤中捕食性甲虫幼虫的分布。我们在多作物轮作实验中使用了带有标准陷阱诱捕的新型地下诱捕方法，以评估地上和地下链甲虫群落对管理实践的反应。作物和陷阱类型通过两者的相互作用显着影响了汇集的carabid 丰度，最多数量的carabids 被捕获在种植草的大麦中的地下陷阱中。在carabid群落组成中观察到的差异最大的是陷阱类型，其次是作物。对于模拟的八种物种中的三种，耕作反应仅在物种水平上很明显。对作物类型的反应因物种而异。大多数物种在未播种的大麦中的丰度高于草、小麦和大麦。地下陷阱数据中的作物差异更大。对于捕食性幼虫，标准陷阱显示未播种大麦的丰度最低，但地下陷阱显示该作物的丰度最高。生态系统服务的综合评估应包括地上和地下社区评估，以告知适当的管理。