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Pathogens and herbivorous insects are key to biodiversity-productivity relationships in terrestrial ecosystems. However, the mechanism through which plant diversity maintains higher productivity by reducing biomass loss from pests and diseases has not been explored on a global scale. Based on 103 studies across various ecosystems, we examined how plant taxonomic, functional and phylogenetic diversities affect the performance (abundance and damage) of pathogens and invertebrate herbivores, and how plant productivity is further influenced.

病原体与植食性昆虫是陆地生态系统中生物多样性-生产力关系的核心要素。然而，植物多样性通过减少病虫害导致的生物量损失以维持更高生产力的机制尚未在全球尺度上得到探索。基于涵盖多种生态系统的103项研究，我们探讨了植物分类多样性、功能多样性和系统发育多样性如何影响病原体与无脊椎植食性动物的表现（丰度与危害程度），以及植物生产力如何受到进一步影响。