南岭哺乳类和鸟类物种丰富度空间分布格局及其影响因子

王丽媛, 胡慧建, 姜杰, 胡一鸣

Species richness patterns of mammals and birds and their drivers in the Nanling Mountain Range

Liyuan Wang, Huijian Hu, Jie Jiang, Yiming Hu

表1 基于路径分析的哺乳类和鸟类物种丰富度空间分布格局影响因子的结果

Table 1 The results of factors influencing the spatial distribution pattern of mammal and bird species richness based on path analysis

类群 Group 变量 Variables 总影响 Total effect 直接影响 Direct effect 间接影响 Indirect effect 哺乳类 Mammal 年均温 Average annual temperature -0.537 -0.424 -0.113 气温年较差 Annual range of temperature 0.344 0.361 -0.017 年均降水量 Average annual precipitation 0.279 0.248 0.031 归一化植被指数 Normalized difference vegetation index -0.306 -0.306 0 人类足迹指数 Human footprint index 0.056 0.017 0.039 生境异质性 Habitat heterogeneity -0.124 -0.124 0 海拔 Elevation -0.157 -0.208 0.051 鸟类 Bird 年均温 Average annual temperature 0.525 0.502 0.023 气温年较差 Annual range of temperature -0.597 -0.615 0.018 年均降水量 Average annual precipitation 0.089 0.094 -0.005 归一化植被指数 Normalized difference vegetation index -0.030 -0.030 0 人类足迹指数 Human footprint index 0.031 0.019 0.012 生境异质性 Habitat heterogeneity 0.047 0.047 0 海拔 Elevation 0.209 0.201 0.008