The heterogeneity of the shrub height and the arbor height influences the density and evenness of the birds significantly, while bird community diversity is correlated with the shrub height heterogeneity and arbor density.

• 而林冠营巢集团鸟类的数量却随着灌木高度和树种多样性的增加而下降 .；鸟类种群密度和均匀度受到灌丛高度异质性和乔木高度的显著影响；而鸟类群落的物种多样性则与灌木高度异质性以及乔木密度密切相关