Raw data: Local habitat factors and spatial connectivity jointly shape an urban insect community

As the world becomes more and more urbanized, it is increasingly important to understand the impacts of urban landscapes on biodiversity. Urbanization can change local habitat factors and decrease connectivity among local habitats, with major impacts on the structure of natural food webs. However, most studies have focused on single species, or compared rural to urban habitats, which do not inform us on how to design and manage cities to optimize biodiversity. To understand the local and spatial drivers of ecological communities within urban landscapes, we assessed the relative impact of local habitat factors (sunlight exposure and leaf litter) and spatial connectivity on an oak-associated herbivore community within an urban landscape. From the local habitat factors, leaf litter but not sunlight exposure was related to herbivore species richness, with leaf litter contributing to the maintenance of high species richness on isolated trees. Guilds and species differed strongly in their res...

随着全球城市化进程不断加速，理解城市景观对生物多样性的影响愈发重要。城市化会改变局部栖息地因子，降低栖息地间的连通性，进而对自然食物网结构产生重大影响。然而，多数研究聚焦于单一物种，或对比乡村与城市栖息地，这类研究无法为城市设计与管理以优化生物多样性提供有效指导。为揭示城市景观中生态群落的局域及空间驱动因子，本研究评估了局域栖息地因子（光照暴露及落叶层）与空间连通性对城市景观内栎树关联植食性动物群落的相对影响。在局域栖息地因子中，落叶层（而非光照暴露）与植食性动物物种丰富度相关，且落叶层有助于维持孤立树木上的高物种丰富度。功能群及物种在其响...