	observed_species	chao1	PD_whole_tree
PC.636	44.0	102.125	5.42464
PC.635	62.0	161.0	6.11403
PC.356	61.0	155.6	4.34953
PC.481	59.0	194.142857143	5.34242
PC.354	48.0	165.166666667	4.21528
PC.593	38.0	88.6	4.3459
PC.355	51.0	138.875	3.88461
PC.607	60.0	221.142857143	6.30413
PC.634	44.0	80.1111111111	5.31152