高原鼠兔干扰对高寒草甸β多样性的影响

李捷, 陈莹莹, 乔福云, 郅堤港, 郭正刚

Effects of disturbance by plateau pika on the β diversity of an alpine meadow

LI Jie, CHEN Ying-Ying, QIAO Fu-Yun, ZHI Di-Gang, GUO Zheng-Gang

表1 高原鼠兔不同干扰位点下高寒草甸植物群落内累计物种数和物种丰富度

Table 1 Total species number and richness of plant communities under different disturbance by plateau pika in an alpine meadow

位点 Site 有效洞口密度 Active burrow entrance (burrows·hm-2) 物种数1) Species number1) 丰富度2) Species richness2) T0 0 22 20.2 T1 335 26 20.4 T2 417 30 20.6 T3 555 34 22.4 T4 710 39 23.4 T5 759 36 23.0 T6 906 31 19.6 T7 1 004 29 19.4 T8 1 186 27 17.6 T9 1 360 24 15.8 T10 1 633 21 13.8