Appendix B. Frequency distributions of occupied quads based on observed data and various null models and P values from goodness-of-fit tests comparing each distribution to the observed distribution.

Frequency distributions of occupied quads based on observed data and various null models and P values from goodness-of-fit tests comparing each distribution to the observed distribution.基于观测数据与多种零模型（null models）得到的占用样方（occupied quads）频率分布，以及将各分布与观测分布进行拟合优度检验（goodness-of-fit tests）所得的P值。