基于取食行为探究北京居民区鸟类的食源特征及多样性

殷鲁秦, 王成, 韩文静

Food source characteristics and diversity of birds based on feeding behavior in residential areas of Beijing

Luqin Yin, Cheng Wang, Wenjing Han

表3 基于取食行为的鸟类多样性与环境因子平均模型的参数估计

Table 3 Parameter estimation of the average model relating bird diversity based on feeding behavior to environmental factors

响应变量 Response variables 环境因子 Environmental factors 参数估计 Estimate 标准误 SE P 物种丰富度 Species richness CFST 0.3885 0.1141 < 0.001*** SFST 0.5979 0.1749 < 0.001*** PAR -0.0918 0.1684 0.5909 CY 0.0227 0.0707 0.7528 AREA 0.0248 0.0776 0.7538 物种密度 Species density CFST 8.9247 2.5447 < 0.001*** SFST 2.1968 2.9115 0.4577 AREA -0.6399 1.8525 0.7342 Shannon-Wiener多样性指数 Shannon-Wiener diversity index CFST 0.2340 0.1696 0.1768 SFST 0.5013 0.1594 0.0023** CY 0.0322 0.0928 0.7326 PAR -0.0665 0.1527 0.6672 AREA 0.0138 0.0681 0.8434 BD 0.0282 0.1034 0.7877