Appendix E. Estimates of bird species richness per area, using sample-based rarefaction, and species richness estimators (the incidence-based coverage estimator [ICE] and the Chao2 estimator) in addition to the numbers of uniques and duplicates.

Estimates of bird species richness per area, using sample-based rarefaction, and species richness estimators (the incidence-based coverage estimator [ICE] and the Chao2 estimator) in addition to the numbers of uniques and duplicates.本数据集包含采用基于样本的稀疏化法（sample-based rarefaction）计算得到的单位面积鸟类物种丰富度估计值，以及基于出现频度的覆盖度估计器（incidence-based coverage estimator，ICE）与Chao2估计器所得的物种丰富度估计结果，此外还涵盖仅出现于单个采样样本的物种（uniques）与出现于多个采样样本的物种（duplicates）的数量。