生物入侵的影响是否准确可知?

何维明

Biological invasions: Are their impacts precisely knowable or not?

Weiming He

图1 生物入侵的影响评估示意图(左)和植物群落相似度(右)。在左图中, 单箭头表示立地A和B从时间t0到t1的转变, 双箭头表示立地之间的比较, 实线表示两个立地是否可替换这个问题。C: 比较; Q: 问题; Invader: 外来入侵生物。在右图中, 不同字母表示1 m × 1 m植物群落相似性与10 m × 10 m植物群落相似性之间存在差异(P < 0.05)。

Fig. 1 Graphic illustration of quantifying biological invasion impacts (left panel), and the related comparisons of plant community similarity coefficients between sites (right panel). At the left panel, single arrows indicate a shift of sites from t0 to t1, double arrows indicate a comparison between two sites, and solid lines indicate a question about whether two sites are substitutable. C: Comparison; Q: Question. At the right panel, different letters demonstrate a significant difference in similarity coefficients between 1 m × 1 m quadrats and 10 m × 10 m quadrats at the P < 0.05 level.