Natural enemies of crop pests in oilseed rape fields in relation to local plant diversity and landscape characteristics

The number and type of natural enemies of crop pests found in winter-sown oilseed rape fields (Brassica napus L.) in relation to local plant diversity (in crop and field margin) and landscape characteristics. Natural enemies and pests were collected using two methods (suction sampling and pitfall traps). Local plant diversity was assessed using quadrats in field margins and in cropped area. The presence of hedges was also recorded. Landscape characteristics include the amount of mass flowering crops, arable land, presence of patches of different grassland types (intensive, restored and species rich) and the amount of grasslands and other semi natural habitat with up to a 3km radius of the collection points. These data were collected as part of Wessex BESS project, funded by the NERC Biodiversity and Ecosystem Service Sustainability research program. This dataset can be used in conjunction with other Wessex BESS WP4 datasets. Full details about this dataset can be found at https://doi.org/10.5285/6e2be4d6-a681-4ae5-8abf-0c3fc150365d

本研究旨在探讨冬季播种的油菜（Brassica napus L.）田地中作物害虫的自然天敌数量及种类，及其与当地植物多样性（包括作物和田边）以及景观特征的关联。自然天敌和害虫的收集采用两种方法（吸取式采样和陷阱捕捉）。通过田间边界的方格网调查以及种植区域的植物多样性进行评估。同时，还记录了树篱的存在。景观特征包括大量集中开花作物、耕地面积、不同草地类型（密集型、恢复型和物种丰富型）的分布，以及距离采集点3公里范围内的草地和其他半自然栖息地的面积。这些数据作为Wessex BESS项目的一部分被收集，该项目由NERC生物多样性及生态系统服务可持续性研究计划资助。本数据集可与Wessex BESS WP4的其他数据集联合使用。关于本数据集的详细信息可在以下链接找到：https://doi.org/10.5285/6e2be4d6-a681-4ae5-8abf-0c3fc150365d