中国阿勒泰地区鸟类物种编目、丰富度格局和区系组成

李娜,丁晨晨,曹丹丹,初红军,戚英杰,李春旺,平晓鸽,孙悦华,蒋志刚

Avian species census, richness patterns and faunal composition in the Altay Region, China

Na Li,Chenchen Ding,Dandan Cao,Hongjun Chu,Yingjie Qi,Chunwang Li,Xiaoge Ping,Yuehua Sun,Zhigang Jiang

表1 环境因子对鸟类分布模型预测的贡献百分比

Table 1 Percent contribution of each environmental variable in predicting bird’s distribution

环境因子 Environmental factors 环境因子描述 Description of environmental factors 贡献百分比 Percent contribution (%) LCT 土地覆被类型 Land cover type 23.17 HFI 人类足迹指数 Human footprint index 19.73 Altitude 海拔 Elevation 8.91 Slope 坡度 Slope 6.75 Bio15 降水量变异系数 Variation coefficient of precipitation 4.41 Bio2 昼夜温差月均值 Monthly mean of diurnal temperature range 3.62 Bio12 年均降水量 Average annual precipitation 3.55 Bio14 最干月降水量 Precipitation of driest month 3.14 Bio1 年均温 Annual average temperature 2.97 Bio9 最旱季均温 Mean temperature of driest quarter 2.87 Aspect 坡向 Aspect 2.26 Bio3 等温线 Isothermality 2.21 Bio6 最冷月最低温 Min temperature of coldest month 1.89 Bio16 最湿季降水量 Precipitation of wettest quarter 1.83 Bio8 最湿季均温 Mean temperature of wettest quarter 1.78 Bio19 最冷季降水 Precipitation of coldest quarter 1.56 Bio4 季节温度变化 Variation of temperature seasonality 1.54 Bio11 最冷季均温 Mean temperature of coldest quarter 1.45 Bio18 最暖季降水 Precipitation of warmest quarter 1.38 Bio10 最暖季均温 Mean temperature of warmest quarter 1.34 Bio13 最湿月降水量 Precipitation of wettest month 0.99 Bio7 气温年较差 Range of annual temperature 0.92 Bio17 最旱季降水量 Precipitation of driest quarter 0.77 Bio5 最暖月最高温 Max temperature of warmest month 0.63