	observed_species	chao1	PD_whole_tree
PC.636	50.0	206.0	5.77399
PC.635	67.0	296.666666667	6.25909
PC.356	66.0	188.5	4.45523
PC.481	65.0	218.125	5.25341
PC.354	43.0	109.428571429	3.78654
PC.593	38.0	72.5	4.2649
PC.355	47.0	109.0	3.90613
PC.607	59.0	231.5	5.99152
PC.634	50.0	108.666666667	5.93028