文献类型：期刊文献

英文题名：Effects of Landscape and Local Factors on the Diversity of Flower-Visitor Groups under an Urbanization Gradient, a Case Study in Wuhan, China

作者：He, Mengyu[1,2] Ran, Nan[1] Jiang, Huiqian[1] Han, Zemin[1] Dian, Yuanyong[1] Li, Xiaoxia[3] Xie, Dong[4,5] Bowler, Peter A.[6] Wang, Hui[1]

第一作者：He, Mengyu

通信作者：Wang, H[1]

机构：[1]Huazhong Agr Univ, Coll Hort & Forestry Sci, Hubei Engn Technol Res Ctr Forestry Informat, Wuhan 430070, Peoples R China;[2]Garden & Forestry Bur Jiangan Dist, Wuhan Dijiao Pk Management Off, Wuhan 430014, Peoples R China;[3]Chinese Acad Forestry, Inst Wetland Res, Beijing 100091, Peoples R China;[4]Nanjing Forestry Univ, Coll Biol & Environm, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China;[5]Natl Forestry Adm, Natl Wetland Ecosyst Field Stn Taihu Lake, Suzhou 215107, Peoples R China;[6]Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA

年份：2022

卷号：14

期号：3

外文期刊名：DIVERSITY-BASEL

收录：;Scopus(收录号：2-s2.0-85126855892);WOS:【SCI-EXPANDED(收录号:WOS:000776936000001)】；

基金：This research was funded by the National Natural Science Foundation of China, grant number 31600189, 32071683.

语种：英文

外文关键词：flower-visitor; insect pollination; plant species; urbanization; diversity; functional group; pollination network; green space

摘要：Urbanization is one of the primary forces driving worldwide pollinator decline. Moderate urban expansion with appropriate green space planning can help in maintaining pollinator diversity and pollination service. We investigated the relative effects of landscape and local factors on the diversity of flower-visitor functional groups in a moderately urbanized city, Wuhan, located in central China. We found that the proportion of impervious surface had no significant effect on the number of visitations, but it was negatively associated with the diversity of flower-visitor groups. The number of visitations by Halictidae and Lepidoptera correlated positively with local flower density and flowering plant species richness, respectively. Flowering plant species richness was also positively correlated with the diversity of flower-visitor groups. The proportion of green space was negatively associated with the visitation number of Muscidae and the overall diversity of flower-visitor groups, revealing the potential influence of green space quality on pollinator assemblage. The pollination networks under three urbanization levels (with a total of 11 flower visitor groups and 43 plant species) were asymmetric, highly nested, and generalized. The suburb sites contained the highest diversity of interactions. Core flowering plants (Oenothera speciosa, Coreopsis grandiflora and Cyanus segetum) are exotic species with attractive flowers. Improving green space quality (high flower density and flowering plant species richness) and using attractive native flowering plants (Nandina domestica, Rosa chinensis, Astragalus sinicus, Cirsium arvense var. integrifolium, and Zabelia biflora) would enhance the function of urban green space to maintain pollinator diversity and ecosystem stability.