基于红外相机技术调查四川都江堰破碎化森林鸟兽多样性及优势种活动节律

赵坤明, 陈圣宾, 杨锡福

Investigation of the diversity of mammals and birds and the activity rhythm of dominant species using camera trapping in a fragmented forest in the Dujiangyan region, Sichuan Province

Kunming Zhao, Shengbin Chen, Xifu Yang

图2 斑块大小(A, C)和演替阶段(B, D)对鸟兽物种数和相对多度指数的影响。* P < 0.05, ** P < 0.01; ns: 没有显著性差异。箱线图中, 箱体中间的横线表示中位数; 箱体高度表示25%-75%百分位数, 有50%的数据在此范围内; 箱体外的两条竖线表示除去异常值外的最大值和最小值; 线外的小圈表示异常值。图A和B中, N表示样本大小(即斑块数)。

Fig. 2 Effects of patch size (A, C) and stand age (B, D) on species richness and relative abundance indices of birds and mammals. *, ** indicate P < 0.05, 0.01, respectively, and ns indicates a non-significant effect (P > 0.05). The bottom and top limits of each box are the lower and upper quartiles, respectively; the horizontal line within each middle of box is the median. The two vertical lines outside the box represent the maximum and minimum values except for the outliers; the small circles outside the line represent the outliers. N in (A, B) indicated the sample size (i.e., patches).