Effects of vegetation structure and environmental characteristics on pollinator diversity in urban green spaces

作者：Haicong Zeng, Jianan Wang, Mingzhu Guan, Yihao Lu, Hui Liu, Dexian Zhao · 发表于：Urban forestry & urban greening · 年份：2023 · DOI：10.1016/j.ufug.2023.127928 · 被引用次数：25 · 研究领域：Plant and animal studies、Plant Parasitism and Resistance、Ecology and Vegetation Dynamics Studies

With accelerating urbanization, insect pollinators in urban ecosystems face challenges such as reduced pollen sources , habitat fragmentation , and damage to the nesting environment. Urban green spaces (UGS) are essential for the stability of pollinator communities. However, little is known about the relationship between vertical layer heterogeneity and horizontal layer complexity of vegetation structure in UGS and pollinator communities. The present study aimed to assess how vegetation structure and environmental characteristics shape the insect pollinator community in UGS. To this end, this study was conducted with seven typical vegetation types which were selected according to the biotope mapping classification system (BMCS) in the ring parks around Hefei City, in Anhui province, China. A total of 11,401 pollinators belonging to 6 orders and 34 families were identified during the eight-month survey. Among the seven habitats under the BMCS, mainly successional short-cut shrub and partly open green space, trees two- or multi-layered broad-leaved mixed forest and partly closed green space, and mainly successional tall grass and partly open green space were identified as high-quality insect pollinator habitats. According to the results of the generalized linear regression, the explanatory power of the four best-fitting generalised linear models is relatively high (over 77%). In four optimal models, the effect of vegetation structure on pollinator community was greater than tha...