Supplementary datasets for: Crop wild relatives of the United States require urgent conservation action

Here we develop a national inventory of CWR of the United States, wherein taxa are classified based on current knowledge of their relation to agricultural crops and their significance as wild food sources. We use occurrence information combined with climatic and topographic data to model the potential distributions of 600 prioritized native wild taxa. We then use ecogeographic tools to conduct preliminary threat assessments and conservation gap analyses for the native CWR. The ecogeographic variation evident in the locations where ex situ conservation samples have been collected, and that evident in species’ ranges distributed within protected natural areas, is measured against the variation found within species’ overall predicted native ranges. Geographic and ecological gaps in current conservation are then identified, providing baseline information for conservation planning, prioritization, and action.

本研究构建了美国作物野生近缘种（Crop Wild Relatives, CWR）国家名录，其中类群的分类依据当前学界对其与农业作物的亲缘关系认知，以及其作为野生食物资源的重要性展开。本研究整合物种出现记录、气候与地形数据，对600个优先关注的本土野生类群的潜在分布区进行建模。随后，本研究依托生态地理工具，针对本土作物野生近缘种开展初步威胁评估与保护空缺分析。本研究将迁地保护样本采集点所呈现的生态地理变异，以及分布于自然保护地内的物种分布区所呈现的生态地理变异，与物种整体预测本土分布区的生态地理变异进行对比分析。最终识别出现有保护体系中存在的地理与生态保护空缺，为保护规划、优先排序与保护行动提供基准依据。