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

图2 北京居住区鸟类食源关系图。图中的数字表示取食行为频次。

Fig. 2 Relationship between birds and food sources in residential areas of Beijing. The number indicates the feeding frequency.