夜间灯光对外来入侵植物和本地植物群落多样性和生长的影响

张浩斌, 肖路, 刘艳杰

Effects of artificial light at night on the diversity and growth of invasive alien and native plants

Zhang Haobin, Xiao Lu, Liu Yanjie

图2 夜间灯光对外来入侵植物和本地植物的α多样性指标(丰富度、Shannon-Wiener多样性指数和Pielou均匀度指数)的影响。无路灯表示无路灯直接照射区域; 有路灯(不亮)表示该区域有路灯灯杆但是路灯不亮; 有路灯(亮)表示该区域有路灯灯杆且路灯正常亮。图中数据为平均值 ± 标准误。不同字母表示同一指标在不同夜间灯光水平间差异显著(P < 0.05)。左上角的回归图展示了外来入侵植物或本地植物的α多样性指标与夜间灯光强度的关系。在显著以及边际显著关系的模型中展示了模型的R2、P值和回归拟合线。

Fig. 2 The impacts of artificial light at night on α-diversity indices (richness, Shannon-Wiener diversity index, and Pielou evenness index) of invasive alien plants and native plants. The areas lacking direct illumination from streetlights (NO POLES); The areas where streetlights on poles are not lit (UNLIT POLES); The areas where streetlights on poles are lit (LIT POLES). The values are the mean ± SE. Different letters indicate significant differences in the same index among different levels of artificial light at night (P < 0.05). The regression plots in the upper left corner illustrate the relationships between the α-diversity indices of invasive alien plants or native plants and the intensity of artificial light at night. For models showing significant and marginally significant relationships, the R², P values, and regression fit lines are displayed.