生物群落的种—面积关系

唐志尧, 乔秀娟, 方精云

Species-area relationship in biological communities

Zhiyao Tang, Xiujuan Qiao, Jingyun Fang

图2 北美东南部1,472个巢式样方(0.01-1,000 m2)幂函数种—面积关系斜率(z值)的频率分布, 分段间隔为0.015, 垂直虚线为斜率的均值(0.372), 实线(0.217, 0.538)为95%置信区间(Fridley et al., 2005)。

Fig. 2 The frequency distribution of slopes of species-area relationship for 1,472 nested plots in southwest North America. The dashed line represents the mean slope (0.372), the solid lines (0.217, 0.538) are the threshold with 95% confidence (Fridley et al., 2005).