	observed_species	chao1	PD_whole_tree
PC.636	46.0	108.0	5.32925
PC.635	68.0	240.25	6.20422
PC.356	64.0	285.0	4.7586
PC.481	61.0	171.0	5.53081
PC.354	50.0	206.0	4.55146
PC.593	39.0	75.1428571429	4.37405
PC.355	46.0	91.1111111111	3.88485
PC.607	58.0	165.625	6.06222
PC.634	50.0	130.142857143	5.78431