Weighting for the random selection of invasibility indices (InI) for regions in the virtual world.

The number of ecoregions falling into each species range category was derived from native plant distributions [24].
1The number of InI's given to a region in the virtual world.
2The proportion of all ecoregions falling into the species category.

各物种分布范围类别所对应的生态区数量，源自本土植物分布数据[24]。
1. 分配至虚拟世界中某一区域的InI数量。
2. 所有生态区中归入该物种类别的占比。