贺兰山甲虫物种丰富度分布格局及其环境解释

杨贵军,王敏,杨益春,李欣芸,王新谱

Distribution patterns and environmental interpretation of beetle species richness in Helan Mountain of northern China

Yang Guijun,Wang Min,Yang Yichun,Li Xinyun,Wang Xinpu

表2 贺兰山甲虫物种丰富度和区系分化强度与环境因子的一元回归相关系数

Table 2 The correlation coefficients between beetle species richness, fauna differentiation intensity and environmental factors in Helan Mountain

环境因子 Environmental factor 物种丰富度 Species richness (Nsp) 属区系分化强度 Genus fauna differentiation intensity (Dg) 科区系分化强度 Family fauna differentiation intensity (Df) 海拔高差 Altitude difference (AD) 0.54* 0.27* 0.46* 植被类型数 Vegetation diversity (VD) 0.55* 0.49* 0.27* 植被归一化指数 Normalized difference vegetation index (NDVI) 0.56* 0.41* 0.60* 年均降水量 Mean annual precipitation (MAP) 0.61* 0.34* 0.62* 年均潜在蒸散量 Mean annual potential evapotranspiration (PET) 0.31* 0.50* 0.25* 年均实际蒸散量 Mean annual actual evapotranspiration (AET) 0.49* 0.39* 0.36* 年均温 Mean annual temperature (MAT) -0.34* -0.58* -0.44* 最冷月均温 Mean temperature of coldest month (MTCM) -0.26* -0.51* -0.19* 最热月均温 Mean temperature of warmest month (MTWM) -0.41* -0.58* -0.34* 年均太阳辐射 Mean annual solar radiation (MASR) -0.56* -0.32* -0.57*